Impurity Reference Standard - Products

Atazanavir

CAT No: CL-ATA-01 CAS No: 198904-31-3 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: In Stock

Chemical Name: Methyl [(5S,10S,11S,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir Hydrazine Analog

CAT No: CL-ATA-02 CAS No: 437713-06-9 Mol Wt: 362.5 Mol F: C22H26N4O Inv Status: Custom Synthesis

Chemical Name: (2S,3S)-3-Amino-4-phenyl-1-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-ol

Atazanavir EP Impurity K

CAT No: CL-ATA-03 CAS No: 162537-11-3 Mol Wt: 189.2 Mol F: C8H15NO4 Inv Status: In Stock

Chemical Name: (2S)-2-(Methoxyformamido)-3,3-dimethylbutanoic acid (S)-2-[(Methoxycarbonyl)amino]-3,3-dimethylbutanoic acid (as per USP)

Atazanavir EP Impurity A

CAT No: CL-ATA-04 CAS No: 4385-62-0 Mol Wt: 199.2 Mol F: C12H9NO2 Inv Status: Custom Synthesis

Chemical Name: 4-(Pyridin-2-yl)benzoic acid

Atazanavir Impurity 14

CAT No: CL-ATA-05 CAS No: 2307784-33-2 Mol Wt: 205.3 Mol F: C12H19N3 Inv Status: Custom Synthesis

Chemical Name: 2-(4-(Hydrazinylmethyl)phenyl)piperidine

Atazanavir EP Impurity B

CAT No: CL-ATA-06 CAS No: 127406-56-8 Mol Wt: 183.2 Mol F: C12H9NO Inv Status: Custom Synthesis

Chemical Name: 4-(Pyridin-2-yl)benzaldehyde

Atazanavir EP Impurity C

CAT No: CL-ATA-07 CAS No: 1192224-24-0 Mol Wt: 537.7 Mol F: C26H43N5O7 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5S,10S,11S,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir EP Impurity D

CAT No: CL-ATA-08 CAS No: NA Mol Wt: 527.7 Mol F: C34H33N5O Inv Status: Custom Synthesis

Chemical Name: (2S,3S)-3-Amino-4-phenyl-1-[(E)-1-[[4-(pyridin-2-yl)phenyl]methyl]-2-[[4-(pyridin-2-yl)phenyl]methylidene]hydrazin-1-yl]butan-2-ol

Atazanavir EP Impurity E

CAT No: CL-ATA-09 CAS No: 1292296-09-3 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5S,10R,11S,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir EP Impurity F

CAT No: CL-ATA-10 CAS No: 1332981-14-2 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5R,10S,11S,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir EP Impurity G

CAT No: CL-ATA-11 CAS No: 1332981-16-4 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5S,10S,11S,14R)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir EP Impurity H

CAT No: CL-ATA-12 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5S,10R,11R,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate

Atazanavir EP Impurity I

CAT No: CL-ATA-13 CAS No: NA Mol Wt: 698.9 Mol F: C42H46N6O4 Inv Status: Custom Synthesis

Chemical Name: Methyl [(2S)-1-[[(2S,3S)-3-hydroxy-1-phenyl-4-[(E)-1-[[4-(pyridin-2-yl)phenyl]methyl]-2-[[4-(pyridin-2-yl)phenyl]methylidene]hydrazin-1-yl]butan-2-yl]amino]-3,3-dimethyl-1-oxobutan-2-yl]carbamate

Atazanavir EP Impurity J

CAT No: CL-ATA-14 CAS No: 198904-86-8 Mol Wt: 562.7 Mol F: C32H42N4O5 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-[(2S,3S)-3-(tert-butoxyformamido)-2-hydroxy-4-phenylbutyl]-2-[[4-(pyridin-2-yl)phenyl]methyl]hydrazine-1-carboxylate

Atazanavir Impurity 3

CAT No: CL-ATA-15 CAS No: NA Mol Wt: 690.9 Mol F: C37H50N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,10S,11S,14S)-11-benzyl-10-hydroxy-5-isopropyl-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate

Atazanavir Impurity 2

CAT No: CL-ATA-16 CAS No: 198904-33-5 Mol Wt: 690.9 Mol F: C37H50N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5S,10S,11S,14S)-11-benzyl-10-hydroxy-5-isopropyl-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate

Atazanavir R,S,S,R-Diastereomer

CAT No: CL-ATA-17 CAS No: 1292296-11-7 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,10S,11S,14R)-11-benzyl-5-(tert-butyl)-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate

Atazanavir S,S,R,S-Diastereomer

CAT No: CL-ATA-18 CAS No: 1292296-10-6 Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5S,10S,11R,14S)-11-benzyl-5-(tert-butyl)-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate

Atazanavir Impurity 4

CAT No: CL-ATA-19 CAS No: NA Mol Wt: 698.9 Mol F: C42H46N6O4 Inv Status: Custom Synthesis

Chemical Name: (S)-1-(((2S,3S)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)-2-((E)-4-(pyridin-2-yl)benzylidene)hydrazinyl)butan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl methylcarbamate

Atazanavir Impurity B

CAT No: CL-ATA-20 CAS No: 198904-85-7 Mol Wt: 299.4 Mol F: C17H21N3O2 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity C

CAT No: CL-ATA-21 CAS No: 98760-08-8 Mol Wt: 263.3 Mol F: C15H21NO3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl ((S)-1-((R)-oxiran-2-yl)-2-phenylethyl)carbamate

Atazanavir Impurity 9 (4R,5R-Diasteroisomer Of DIBOC)

CAT No: CL-ATA-22 CAS No: NA Mol Wt: 562.7 Mol F: C32H42N4O5 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-((2R,3R)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 10 (4S,5R-Diasteroisomer Of DIBOC)

CAT No: CL-ATA-23 CAS No: NA Mol Wt: 562.7 Mol F: C32H42N4O5 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-((2S,3R)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 6 (4R,5S-Diasteroisomer Of DIBOC)

CAT No: CL-ATA-24 CAS No: 1006868-81-0 Mol Wt: 562.7 Mol F: C32H42N4O5 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-((2R,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 7

CAT No: CL-ATA-25 CAS No: 1192224-26-2 Mol Wt: 646.8 Mol F: C36H50N6O5 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(2-((2S,3S)-3-((S)-2-amino-3,3-dimethylbutanamido)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Amine Analog

CAT No: CL-ATA-26 CAS No: 1028634-76-5 Mol Wt: 646.8 Mol F: C36H50N6O5 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(((2S,3S)-4-(2-((S)-2-amino-3,3-dimethylbutanoyl)-1-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3-hydroxy-1-phenylbutan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Rac-Atazanavir Impurity 9

CAT No: CL-ATA-27 CAS No: 2666351-84-2 Mol Wt: 562.7 Mol F: C32H42N4O5 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-(3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 11

CAT No: CL-ATA-28 CAS No: 2307732-33-6 Mol Wt: 305.4 Mol F: 2307732-33-6 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-(4-(piperidin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 12

CAT No: CL-ATA-29 CAS No: 198904-84-6 Mol Wt: 297.4 Mol F: C17H19N3O2 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl (E)-2-(4-(pyridin-2-yl)benzylidene)hydrazine-1-carboxylate

Atazanavir Impurity 13

CAT No: CL-ATA-30 CAS No: 257907-05-4 Mol Wt: 197.2 Mol F: C12H11N3 Inv Status: Custom Synthesis

Chemical Name: (E)-2-(4-(hydrazonomethyl)phenyl)pyridine

Hydroxymethylfuraldehyde

CAT No: CL-ATA-31 CAS No: 67-47-0 Mol Wt: 126.11 Mol F: C6H6O3 Inv Status: Custom Synthesis

Chemical Name: 5-(Hydroxymethyl)Furan-2-Carbaldehyde

Atazanavir RS8 Impurity

CAT No: CL-ATA-32 CAS No: 1292296-12-8 Mol Wt: 672.8 Mol F: C37H48N6O6 Inv Status: Custom Synthesis

Chemical Name: Methyl (S)-1-((2S,3S)-4-(((R)-4-tert-butyl-2,5-dioxoimidazolidin-1-yl)(4-(pyridin-2-yl)benzyl)amino)-3-hydroxy-1-phenylbutan-2-ylamino)-3,3-dimethyl-1-oxobutan-2-ylcarbamate

Atazanavir RS3 Impurity

CAT No: CL-ATA-33 CAS No: 765254-57-7 Mol Wt: 533.7 Mol F: C30H39N5O4 Inv Status: Custom Synthesis

Chemical Name: Methyl (S)-1-((2S,3S)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-ylamino)-3,3-dimethyl-1-oxobutan-2-ylcarbamate

Atazanavir Sulfate

CAT No: CL-ATA-34 CAS No: 229975-97-7 Mol Wt: 704.9 : 98.1 Mol F: C38H52N6O7 : H2SO4 Inv Status: Custom Synthesis

Chemical Name: Methyl [(5S,10S,11S,14S)-11-benzyl-5-tert-butyl-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-[[4-(pyridin-2-yl)phenyl]methyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl]carbamate sulfate

Atazanavir RS9 Impurity

CAT No: CL-ATA-35 CAS No: 1292296-13-9 Mol Wt: 672.8 Mol F: C37H48N6O6 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(2-((2S,3S)-3-((R)-4-(tert-butyl)-2,5-dioxoimidazolidin-1-yl)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir RS12 Impurity

CAT No: CL-ATA-36 CAS No: NA Mol Wt: 1093.3 Mol F: C61H76N10O9 Inv Status: Custom Synthesis

Chemical Name: Dimethyl ((3R,6R,7R,15S,16S,19S)-6,16-dibenzyl-7,15-dihydroxy-2,2,20,20-tetramethyl-4,11,18-trioxo-9,13-bis(4-(pyridin-2-yl)benzyl)-5,9,10,12,13,17-hexaazahenicosane-3,19-diyl)dicarbamate

Atazanavir R,R,R,R Isomer

CAT No: CL-ATA-37 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,8R,9R,14R)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir (RS8 + RS9) Mixture

CAT No: CL-ATA-38 CAS No: NA Mol Wt: 672.8 Mol F: C37H48N6O6 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(((2S,3S)-4-(((R)-4-(tert-butyl)-2,5-dioxoimidazolidin-1-yl)(4-(pyridin-2-yl)benzyl)amino)-3-hydroxy-1-phenylbutan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Impurity 15

CAT No: CL-ATA-39 CAS No: 857900-54-0 Mol Wt: 533.7 Mol F: C30H39N5O4 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(2-((2S,3S)-3-amino-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Impurity 16

CAT No: CL-ATA-40 CAS No: 2131010-71-2 Mol Wt: 876.1 Mol F: C46H65N7O10 Inv Status: Custom Synthesis

Chemical Name: (5S,10S,11S,14S)-11-benzyl-5,14-di-tert-butyl-3,6,13,16-tetraoxo-8-(4-(pyridin-2-yl)benzyl)-2,17-dioxa-4,7,8,12,15-pentaazaoctadecan-10-yl (S)-2-((methoxycarbonyl)amino)-3,3-dimethylbutanoate

Atazanavir Impurity 5

CAT No: CL-ATA-41 CAS No: NA Mol Wt: 362.5 Mol F: C22H26N4O Inv Status: Custom Synthesis

Chemical Name: (2R,3S)-3-Amino-4-phenyl-1-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-ol

Atazanavir Benzylidenehydrazine Analogue (RS)

CAT No: CL-ATA-42 CAS No: NA Mol Wt: 527.7 Mol F: C34H33N5O Inv Status: Custom Synthesis

Chemical Name: (2R,3S)-3-Amino-4-phenyl-1-(1-(4-(pyridin-2-yl)benzyl)-2-((E)-4-(pyridin-2-yl)benzylidene)hydrazinyl)butan-2-ol

Atazanavir R,R,S,S-Diastereomer

CAT No: CL-ATA-43 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5S,8S,9R,14R)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir S,R,S,R-Diastereomer

CAT No: CL-ATA-44 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,8S,9R,14S)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir Benzylidenehydrazine Carbamate (RSS)

CAT No: CL-ATA-45 CAS No: NA Mol Wt: 698.9 Mol F: C42H46N6O4 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(((2S,3R)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)-2-((E)-4-(pyridin-2-yl)benzylidene)hydrazinyl)butan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir R,R,S,R-Diastereomer

CAT No: CL-ATA-46 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,10R,11S,14R)-11-benzyl-5-(tert-butyl)-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl)carbamate

Atazanavir Impurity 17 (RSSSS)

CAT No: CL-ATA-47 CAS No: NA Mol Wt: 1079.3 Mol F: C60H74N10O9 Inv Status: Custom Synthesis

Chemical Name: Dimethyl ((3R,8S,9S,13S,14S,19S)-9,13-dibenzyl-8,14-dihydroxy-2,2,20-trimethyl-4,11,18-trioxo-6,16-bis(4-(pyridin-2-yl)benzyl)-5,6,10,12,16,17-hexaazahenicosane-3,19-diyl)dicarbamate

Atazanavir R,S,R,R-Diastereomer

CAT No: CL-ATA-48 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,8R,9S,14R)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir Impurity 18 (SRS)

CAT No: CL-ATA-49 CAS No: 1003889-62-0 Mol Wt: 533.7 Mol F: C30H39N5O4 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(2-((2R,3S)-3-amino-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Impurity 19

CAT No: CL-ATA-50 CAS No: NA Mol Wt: 818 Mol F: C44H63N7O8 Inv Status: Custom Synthesis

Chemical Name: 11-benzyl-5,14-di-tert-butyl-3,6,13,16-tetraoxo-8-(4-(pyridin-2-yl)benzyl)-2,17-dioxa-4,7,8,12,15-pentaazaoctadecan-10-yl 2-amino-3,3-dimethylbutanoate

Atazanavir Diol Impurity

CAT No: CL-ATA-51 CAS No: 73488-74-1 Mol Wt: 281.4 Mol F: C15H23NO4 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl (3,4-dihydroxy-1-phenylbutan-2-yl)carbamate

Atazanavir EP Impurity A Hydrochloride

CAT No: CL-ATA-52 CAS No: 222986-74-5 Mol Wt: 199.2 : 36.5 Mol F: C12H9NO2 : HCl Inv Status: Custom Synthesis

Chemical Name: 4-(Pyridin-2-yl)benzoic acid Hydrochloride

Atazanavir EP Impurity B Hydrochloride

CAT No: CL-ATA-53 CAS No: 2549012-96-4 Mol Wt: 183.2 : 36.5 Mol F: C12H9NO : HCl Inv Status: Custom Synthesis

Chemical Name: 4-(Pyridin-2-yl)benzaldehyde Hydrochloride

Atazanavir Formyl Analog

CAT No: CL-ATA-54 CAS No: NA Mol Wt: 674.8 Mol F: C37H50N6O6 Inv Status: Custom Synthesis

Chemical Name: Methyl [(S)-1-{[(2S,3S)-4-{2-[(S)-2-formamido-3,3-dimethylbutanoyl]-1-[4-(pyridin-2-yl)benzyl]hydrazineyl}-3-hydroxy-1-phenylbutan-2-yl]amino}-3,3-dimethyl-1-oxobutan-2-yl]carbamate

Atazanavir Dipeptide Analog

CAT No: CL-ATA-55 CAS No: NA Mol Wt: 818 Mol F: C44H63N7O8 Inv Status: Custom Synthesis

Chemical Name: Methyl {(5S,8S,13S,14S,17S)-14-benzyl-5,8-di-tert-butyl-13-hydroxy-18,18-dimethyl-3,6,9,16-tetraoxo-11-[4-(pyridin-2-yl)benzyl]-2-oxa-4,7,10,11,15-pentaazanonadecan-17-yl}carbamate

Atazanavir KSM-2 R,R Isomer

CAT No: CL-ATA-56 CAS No: 98818-34-9 Mol Wt: 263.3 Mol F: C15H21NO3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl ((R)-1-((R)-oxiran-2-yl)-2-phenylethyl)carbamate

Atazanavir S,R,R,S-Diastereomer

CAT No: CL-ATA-57 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5S,8R,9R,14S)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir sulfate Imine Dimer impurity

CAT No: CL-ATA-58 CAS No: NA Mol Wt: 1089.4 Mol F: C62H76N10O8 Inv Status: Custom Synthesis

Chemical Name: Dimethyl ((3S,6S,7S,10E,12E,17S,20S)-6,17-dibenzyl-7,16-dihydroxy-2,2,21,21-tetramethyl-4,19-dioxo-9,14-bis(4-(pyridin-2-yl)benzyl)-5,9,10,13,14,18-hexaazadocosa-10,12-diene-3,20-diyl)dicarbamate

Atazanavir Valine Analog

CAT No: CL-ATA-59 CAS No: 198904-34-6 Mol Wt: 690.8 Mol F: C37H50N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl {(5S,10S,11S,14S)-11-benzyl-5-(tert-butyl)-10-hydroxy-15-methyl-3,6,13-trioxo-8-[4-(pyridin-2-yl)benzyl]-2-oxa-4,7,8,12-tetraazahexadecan-14-yl}carbamate

Atazanavir Ethyl Analog

CAT No: CL-ATA-60 CAS No: NA Mol Wt: 718.9 Mol F: C39H54N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl {(6S,11S,12S,15S)-12-benzyl-6-(tert-butyl)-11-hydroxy-16,16-dimethyl-4,7,14-trioxo-9-[4-(pyridin-2-yl)benzyl]-3-oxa-5,8,9,13-tetraazaheptadecan-15-yl}carbamate

Atazanavir Impurity 20

CAT No: CL-ATA-61 CAS No: NA Mol Wt: 532.7 Mol F: C31H40N4O4 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(((2S,3S)-3-hydroxy-4-(methyl(4-(pyridin-2-yl)benzyl)amino)-1-phenylbutan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Impurity 21

CAT No: CL-ATA-62 CAS No: NA Mol Wt: 532.7 Mol F: C31H40N4O4 Inv Status: Custom Synthesis

Chemical Name: Methyl ((S)-1-(2-((2R,3S)-2-hydroxy-3-methyl-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinyl)-3,3-dimethyl-1-oxobutan-2-yl)carbamate

Atazanavir Impurity 22

CAT No: CL-ATA-63 CAS No: NA Mol Wt: 876.1 Mol F: C46H65N7O10 Inv Status: Custom Synthesis

Chemical Name: (5S,10S,11S,14S)-11-benzyl-5,14-di-tert-butyl-3,6,13,16-tetraoxo-8-(4-(pyridin-2-yl)benzyl)-2,17-dioxa-4,7,8,12,15-pentaazaoctadecan-10-yl (R)-2-((methoxycarbonyl)amino)-3,3-dimethylbutanoate

Atazanavir Impurity 24

CAT No: CL-ATA-64 CAS No: NA Mol Wt: 774.8 Mol F: C38H71BN2O13 Inv Status: Custom Synthesis

Chemical Name: (3aS,4R,7R,8S,9S,10R,11R,13R,16R,16aR)-10-(((2S,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4-ethyl-2,11-dihydroxy-8-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3a,7,9,11,13,15,16-heptamethyldodecahydro-[1,3,2]dioxaborolo[4,5-c][1]oxa[6]azacyclopentadecin-6(4H)-one

Atazanavir Impurity 23 Dihydrochloride

CAT No: CL-ATA-65 CAS No: 1185167-55-8 Mol Wt: 170.3 : 2(36.5) Mol F: C8H14N2S : 2(HCl) Inv Status: Custom Synthesis

Chemical Name: 1-(2-Isopropylthiazol-4-yl)-N-methylmethanamine Dihydrochloride

Atazanavir Impurity 25

CAT No: CL-ATA-66 CAS No: NA Mol Wt: 698.85 Mol F: C42H46N6O4 Inv Status: Custom Synthesis

Chemical Name: ((S)-1-(((2S,3S)-3-hydroxy-1-phenyl-4-((E)-1-(4-(pyridin-2-yl)benzyl)-2-(4-(pyridin-2-yl)benzylidene)hydrazinyl)butan-2-yl)amino)-3,3-dimethyl-1-oxobutan-2-yl)(methyl)carbamic acid

Atazanavir Impurity 28

CAT No: CL-ATA-67 CAS No: 107202-43-7 Mol Wt: 247.3 Mol F: C15H21NO2 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl (S)-(1-phenylbut-3-en-2-yl)carbamate

Atazanavir Impurity 29

CAT No: CL-ATA-68 CAS No: 156474-22-5 Mol Wt: 263.3 Mol F: C15H21NO3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl ((R)-1-((S)-oxiran-2-yl)-2-phenylethyl)carbamate

Atazanavir Impurity 30

CAT No: CL-ATA-69 CAS No: NA Mol Wt: 357.4 Mol F: C18H23N5O3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-(2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carbonyl)hydrazine-1-carboxylate

Atazanavir Impurity 31

CAT No: CL-ATA-70 CAS No: NA Mol Wt: 355.4 Mol F: C18H21N5O3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl (E)-2-(2-(4-(pyridin-2-yl)benzylidene)hydrazine-1-carbonyl)hydrazine-1-carboxylate

Atazanavir Impurity 32

CAT No: CL-ATA-71 CAS No: NA Mol Wt: 299.4 Mol F: C17H21N3O2 Inv Status: Custom Synthesis

Chemical Name: sec-butyl 2-(4-(pyridin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 33

CAT No: CL-ATA-72 CAS No: NA Mol Wt: 302.4 Mol F: C14H26N2O5 Inv Status: Custom Synthesis

Chemical Name: (S)-2-((S)-2-((methoxycarbonyl)amino)-3,3-dimethylbutanamido)-3,3-dimethylbutanoic acid

Atazanavir Impurity 34

CAT No: CL-ATA-73 CAS No: NA Mol Wt: 830.1 Mol F: C48H71N5O7 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(1-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-methyl-4-phenylbutyl)piperidin-2-yl)benzyl)hydrazine-1-carboxylate

Atazanavir Impurity 35

CAT No: CL-ATA-74 CAS No: 857904-20-2 Mol Wt: 462.6 Mol F: C27H34N4O3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl ((2S,3S)-3-hydroxy-1-phenyl-4-(1-(4-(pyridin-2-yl)benzyl)hydrazinyl)butan-2-yl)carbamate

Atazanavir Impurity 36

CAT No: CL-ATA-75 CAS No: 156990-58-8 Mol Wt: 203.2 Mol F: C9H17NO4 Inv Status: Custom Synthesis

Chemical Name: (S)-2-((ethoxycarbonyl)amino)-3,3-dimethylbutanoic acid

Atazanavir Impurity 37

CAT No: CL-ATA-76 CAS No: 869285-68-7 Mol Wt: 306.3 Mol F: C14H18N4O4 Inv Status: Custom Synthesis

Chemical Name: 1H-Benzo[d][1,2,3]triazol-1-yl (S)-2-((methoxycarbonyl)amino)-3,3-dimethylbutanoate

Atazanavir Impurity 38

CAT No: CL-ATA-77 CAS No: 162536-40-5 Mol Wt: 299.8 Mol F: C15H22ClNO3 Inv Status: Custom Synthesis

Chemical Name: Tert-butyl ((2S,3R)-4-chloro-3-hydroxy-1-phenylbutan-2-yl)carbamate

Atazanavir Impurity 39

CAT No: CL-ATA-78 CAS No: 1191091-65-2 Mol Wt: 189.2 Mol F: C8H15NO4 Inv Status: Custom Synthesis

Chemical Name: (R)-2-((Methoxycarbonyl)amino)-3,3-dimethylbutanoic acid

Atazanavir Impurity 40

CAT No: CL-ATA-79 CAS No: NA Mol Wt: 704.9 Mol F: C38H52N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5R,8S,9R,14R)-8-benzyl-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir D5

CAT No: CL-ATA-80 CAS No: 1132747-14-8 Mol Wt: 709.9 Mol F: C38H47D5N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl ((5S,8S,9S,14S)-5-(tert-butyl)-9-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-((phenyl-d5)methyl)-11-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,11,12-tetraazahexadecan-14-yl)carbamate

Atazanavir D6

CAT No: CL-ATA-81 CAS No: 1092540-50-5 Mol Wt: 710.9 Mol F: C38H46D6N6O7 Inv Status: Custom Synthesis

Chemical Name: Methyl-d3 ((5S,10S,11S,14S)-11-benzyl-5-(tert-butyl)-10-hydroxy-15,15-dimethyl-3,6,13-trioxo-8-(4-(pyridin-2-yl)benzyl)-2-oxa-4,7,8,12-tetraazahexadecan-14-yl-1,1,1-d3)carbamate

Type:Impurity Reference Standard

API NAME:Atazanavir

Total Products: 81

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