Impurity Reference Standard - Products

Prednisolone

CAT No: CL-PSLN-01 CAS No: 53-03-2 Mol Wt: 358.4 Mol F: C21H26O5 Inv Status: Custom Synthesis

Chemical Name: 17,21-Dihydroxypregna-1,4-diene-3,11,20-trione (as per EP and USP)

Prednisolone EP Impurity A

CAT No: CL-PSLN-02 CAS No: 50-23-7 Mol Wt: 362.5 Mol F: C21H30O5 Inv Status: Custom Synthesis

Chemical Name: 11?,17,21-Trihydroxypregn-4-ene-3,20-dione

Prednisolone EP Impurity B

CAT No: CL-PSLN-03 CAS No: 53-03-2 Mol Wt: 358.4 Mol F: C21H26O5 Inv Status: Custom Synthesis

Chemical Name: 17,21-Dihydroxypregna-1,4-diene-3,11,20-trione

Prednisolone EP Impurity C

CAT No: CL-PSLN-04 CAS No: 52-21-1 Mol Wt: 402.5 Mol F: C23H30O6 Inv Status: Custom Synthesis

Chemical Name: 11?,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate

Prednisolone EP Impurity D

CAT No: CL-PSLN-05 CAS No: 16355-29-6 Mol Wt: 376.4 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: 6?,11?,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione

Prednisolone EP Impurity E

CAT No: CL-PSLN-06 CAS No: 95815-58-0 Mol Wt: 376.4 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: 11?,14a,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione

Prednisolone EP Impurity F

CAT No: CL-PSLN-07 CAS No: 600-90-8 Mol Wt: 360.4 Mol F: C21H28O5 Inv Status: Custom Synthesis

Chemical Name: 11a,17,21-Trihydroxypregna-1,4-diene-3,20-dione

Prednisolone EP Impurity G

CAT No: CL-PSLN-08 CAS No: 2299-46-9 Mol Wt: 362.5 Mol F: C21H30O5 Inv Status: Custom Synthesis

Chemical Name: 11?,17,20?,21-Tetrahydroxypregna-1,4-dien-3-one

Prednisolone EP Impurity H

CAT No: CL-PSLN-09 CAS No: 2427-64-7 Mol Wt: 358.4 Mol F: C21H26O5 Inv Status: Custom Synthesis

Chemical Name: 11?,17,21-Trihydroxypregna-1,4,6-triene-3,20-dione

Prednisolone EP Impurity I

CAT No: CL-PSLN-10 CAS No: 13479-38-4 Mol Wt: 344.4 Mol F: C21H28O4 Inv Status: Custom Synthesis

Chemical Name: 11?,21-Dihydroxypregna-1,4-diene-3,20-dione

Prednisolone EP Impurity J

CAT No: CL-PSLN-11 CAS No: 1807-14-3 Mol Wt: 344.4 Mol F: C21H28O4 Inv Status: Custom Synthesis

Chemical Name: 17,21-Dihydroxypregna-1,4-diene-3,20-dione

Prednisolone 20?-Hydroxy Impurity

CAT No: CL-PSLN-12 CAS No: 15847-24-2 Mol Wt: 362.5 Mol F: C21H30O5 Inv Status: Custom Synthesis

Chemical Name: 11?,17,20a,21-Tetrahydroxypregna-1,4-dien-3-one

Prednisolone Sodium Phosphate USP Impurity B

CAT No: CL-PSLN-13 CAS No: 37927-29-0 Mol Wt: 346.4 Mol F: C20H26O5 Inv Status: Custom Synthesis

Chemical Name: 11?,17a-Dihydroxyandrosta-1,4-diene-3-one 17?-carboxylic acid (as per USP)

Prednisolone Sodium Phosphate USP Impurity D

CAT No: CL-PSLN-14 CAS No: 898-84-0 Mol Wt: 300.4 Mol F: C19H24O3 Inv Status: Custom Synthesis

Chemical Name: 11?-Hydroxyandrosta-1,4-diene-3,17-dione (as per USP)

Prednisolone D-Homo B Derivative

CAT No: CL-PSLN-15 CAS No: NA Mol Wt: 440.4 Mol F: C21H29O8P Inv Status: Custom Synthesis

Chemical Name: 11?,17a,20-Trihydroxy-21-nor-14(15)a-homopregnane-1,4-diene-3,16-dione 20-phosphate (as per USP)

Prednisolone Impurity 1

CAT No: CL-PSLN-16 CAS No: 86401-94-7 Mol Wt: 416.5 Mol F: C24H32O6 Inv Status: Custom Synthesis

Chemical Name: (6S,8S,9S,10R,11S,13S,14S,17R)-11-hydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl acetate

Prednisolone Impurity 2

CAT No: CL-PSLN-17 CAS No: 4380-55-6 Mol Wt: 384.5 Mol F: C23H28O5 Inv Status: Custom Synthesis

Chemical Name: 21-Acetoxy-17a-hydroxypregna-1,4,9(11)-triene-3,20-dione

Prednisolone Impurity 3

CAT No: CL-PSLN-18 CAS No: 98523-85-4 Mol Wt: 444.5 Mol F: C25H32O7 Inv Status: Custom Synthesis

Chemical Name: (11?)-11,21-Bis(acetyloxy)-17-hydroxypregna-1,4-diene-3,20-dione

Prednisolone Impurity 4

CAT No: CL-PSLN-19 CAS No: NA Mol Wt: 387.5 Mol F: C23H33NO4 Inv Status: Custom Synthesis

Chemical Name: (10R,13S,17R)-17-(dimethylglycyl)-11,17-dihydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Prednisolone Impurity 5

CAT No: CL-PSLN-20 CAS No: 2141-22-2 Mol Wt: 388.5 Mol F: C22H28O6 Inv Status: Custom Synthesis

Chemical Name: 2-((8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl formate

Prednisolone Sodium Succinate

CAT No: CL-PSLN-21 CAS No: 1715-33-9 Mol Wt: 459.5 : 23.0 Mol F: C25H31O8 : Na Inv Status: Custom Synthesis

Chemical Name: Sodium 4-(2-((8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethoxy)-4-oxobutanoate

6?,?9?-?Difluoroprednisolone

CAT No: CL-PSLN-22 CAS No: 806-29-1 Mol Wt: 396.4 Mol F: C21H26F2O5 Inv Status: Custom Synthesis

Chemical Name: 6a,9-difluoro-11?,17,21-trihydroxy-pregna-1,4-diene-3,20-dione

Difluoroprednisolone 17,21-Acetate

CAT No: CL-PSLN-23 CAS No: 23674-85-3 Mol Wt: 438.5 Mol F: C23H28F2O6 Inv Status: Custom Synthesis

Chemical Name: (6S,8S,9R,10S,11S,13S,14S,17R)-6,9-difluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl acetate

Prednisolone Sodium Phosphate USP Impurity A

CAT No: CL-PSLN-24 CAS No: NA Mol Wt: 440.4 Mol F: C21H29O8P Inv Status: Custom Synthesis

Chemical Name: 11?,17,20-Trihydroxy-21-nor-13(17)a-homopregnane-1,4-diene-3,13a-dione 20-phosphate (as per USP)

Prednisolone Sodium Phosphate USP Impurity F

CAT No: CL-PSLN-25 CAS No: NA Mol Wt: 422.4 Mol F: C21H27O7P Inv Status: Custom Synthesis

Chemical Name: 21-oxo-20-phosphoryloxy-11?-hydroxypregna-1,4-17-triene-3-one (as per USP) ; 21-Oxygroup-20-Phosphoryl-11beta-Hydroxylpregna-1,4, 17-triene-3-Ketone

Prednisolone D-Homo A Derivative

CAT No: CL-PSLN-26 CAS No: NA Mol Wt: 440.4 Mol F: C21H29O8P Inv Status: Custom Synthesis

Chemical Name: (11?,17?,20-trihydroxy-21-nor-14(15)a-hompregnane-1,4-diene-3,16-dione 20 phosphate) (as per USP)

Prednisolone-21-Carboxylic Acid

CAT No: CL-PSLN-27 CAS No: 61549-70-0 Mol Wt: 374.4 Mol F: C21H26O6 Inv Status: Custom Synthesis

Chemical Name: 21-Oxo-11?,17,21-trihydroxypregna-1,4-diene-3,20-dione (as per USP)

Prednisolone Sodium Phosphate Impurity Isomer 1

CAT No: CL-PSLN-28 CAS No: NA Mol Wt: 438.4 : 2(23.0) Mol F: C21H27O8P2 : 2(Na) Inv Status: Custom Synthesis

Chemical Name: Sodium 2-((8S,9S,10R,11R,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl phosphate

Prednisolone Sodium Diphosphate Derivative

CAT No: CL-PSLN-29 CAS No: NA Mol Wt: 502.4 : 4(23.0) Mol F: C20H24O11P24 : 4(Na) Inv Status: Custom Synthesis

Chemical Name: 21-Dihydroxy-3,20-dioxopregna-1,4-dien-11,21-diyl tetrasodium diphosphate

Prednisolone Sodium Phosphate Isomer II

CAT No: CL-PSLN-30 CAS No: NA Mol Wt: 484.4 Mol F: C21H27Na2O8P Inv Status: Custom Synthesis

Chemical Name: 17,21-dihydroxy-3,20-dioxopregna-1,4-dien-11?-yl disodium phosphate

Prednisolone Impurity 6

CAT No: CL-PSLN-32 CAS No: 33903-70-7 Mol Wt: 438.4 Mol F: C21H27O8P Inv Status: Custom Synthesis

Chemical Name: 17-?Hydroxy-?21-?(phosphonooxy)?pregna-?1,?4-?diene-?3,?11,?20-?trione

Hydrocortisone Sodium Phosphate

CAT No: CL-PSLN-33 CAS No: 6000-74-4 Mol Wt: 440.4 : 2(23.0) Mol F: C21H29O8P2 : 2(Na) Inv Status: Custom Synthesis

Chemical Name: 11??,17,19,21-Tetrahydroxypregn-4-ene-3,20-dione

Prednisolone Sodium Phosphate USP Impurity E

CAT No: CL-PSLN-34 CAS No: NA Mol Wt: 520.4 Mol F: C21H30O11P2 Inv Status: Custom Synthesis

Chemical Name: 16?-Phosphoryloxyacetyl-11?,16a-dihydroxyandrosta-1,4-diene-3-one 11-phosphate (as per USP)

Prednisolone Impurity 7

CAT No: CL-PSLN-35 CAS No: 111186-92-6 Mol Wt: 358.4 Mol F: C21H26O5 Inv Status: Custom Synthesis

Chemical Name: 16a,17-Epoxy-11?,21-dihydroxy-pregna-1,4-diene-3,20-dione

21 Dehydro Prednisolone

CAT No: CL-PSLN-36 CAS No: 22420-16-2 Mol Wt: 358.4 Mol F: C21H26O5 Inv Status: Custom Synthesis

Chemical Name: (11?)-11,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-al

Prednisolone Impurity 8

CAT No: CL-PSLN-37 CAS No: 96580-08-4 Mol Wt: 516.6 Mol F: C25H36N6O6 Inv Status: Custom Synthesis

Chemical Name: 11?-17, 21-Dihydroxypregna-1,4-diene-3, 20-diaminourea-21-acetate

Prednisolone Impurity 9

CAT No: CL-PSLN-38 CAS No: 115097-56-8 Mol Wt: 514.58 Mol F: C25H34N6O6 Inv Status: Custom Synthesis

Chemical Name: 17, 21-Dihydroxypregna-1,4-diene-3, 20-diaminourea-11-one-21-acetate

Prednisolone Impurity 10 (Z-E Isomers)

CAT No: CL-PSLN-39 CAS No: 97830-94-9 Mol Wt: 474.6 Mol F: C23H34N6O5 Inv Status: Custom Synthesis

Chemical Name: 3,20-Disemicarbazone-11?,17,21-trihydroxy-pregna-1,4-diene-3,20-dione

6?-Methyl Prednisolone Aceponate

CAT No: CL-PSLN-40 CAS No: 86401-95-8 Mol Wt: 472.6 Mol F: C27H36O7 Inv Status: Custom Synthesis

Chemical Name: (6a,11?)-21-(Acetyloxy)-11-hydroxy-6-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione

Isoflupredone Disodium Phosphate

CAT No: CL-PSLN-41 CAS No: 94088-00-3 Mol Wt: 456.4 : 2(23.0) Mol F: C21H26FO8P : 2(Na) Inv Status: Custom Synthesis

Chemical Name: (11?)-9-Fluoro-11,17-dihydroxy-21-(phosphonooxy)-pregna-1,4-diene-3,20-dione Disodium Salt

16-Beta-17-Alpha Hydroxy Prednisolone

CAT No: CL-PSLN-42 CAS No: 2408699-72-7 Mol Wt: 376.4 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10R,11S,13S,14S,16S,17S)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

9-Hydroxy Prednisolone

CAT No: CL-PSLN-43 CAS No: NA Mol Wt: 360.5 Mol F: C21H28O5 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,13S,14S,17R)-9,17-dihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

16-Beta Hydroxy Prednisolone

CAT No: CL-PSLN-44 CAS No: 218965-19-6 Mol Wt: 376.5 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10R,11S,13S,14S,16S,17R)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Prednisolone Impurity 11

CAT No: CL-PSLN-45 CAS No: 118866-09-4 Mol Wt: 384.5 Mol F: C23H28O5 Inv Status: Custom Synthesis

Chemical Name: (Z)-1-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)-2-oxoethyl acetate

Prednisolone Impurity 12

CAT No: CL-PSLN-46 CAS No: NA Mol Wt: 384.5 Mol F: C23H28O5 Inv Status: Custom Synthesis

Chemical Name: 2-((10R,11S,13R)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl acetate

Prednisolone Impurity A

CAT No: CL-PSLN-47 CAS No: NA Mol Wt: 376.5 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4aS,4bS,10aR,10bS,11S,12aS)-2,3,11-trihydroxy-2-(hydroxymethyl)-10a,12a-dimethyl-3,4,4a,5,6,10a,10b,11,12,12a-decahydrochrysene-1,8(2H,4bH)-dione

Prednisolone Impurity C

CAT No: CL-PSLN-48 CAS No: 52-21-1 Mol Wt: 402.5 Mol F: C23H30O6 Inv Status: Custom Synthesis

Chemical Name: 11?,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate

16-Alpha-17-Beta Hydroxy Prednisolone

CAT No: CL-PSLN-49 CAS No: NA Mol Wt: 376.5 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10R,11S,13S,14S,16R,17R)-11,16,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Prednisolone Epoxide-Triene Impurity

CAT No: CL-PSLN-50 CAS No: NA Mol Wt: 340.4 Mol F: C21H24O4 Inv Status: Custom Synthesis

Chemical Name: (4aS,4bS,5aS,6aS)-7-(2-hydroxyacetyl)-4a,6a-dimethyl-5a,6,6a,9,9a,9b,10,11-octahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-2(4aH)-one ; 9 ?,11 ? -epoxide-21-hydroxy pregna-1,4,16-triene-3,20-dione

6?-Hydroxyprednisolone

CAT No: CL-PSLN-51 CAS No: 75448-52-1 Mol Wt: 360.5 Mol F: C21H28O5 Inv Status: Custom Synthesis

Chemical Name: 2-hydroxy-2-((8S,9S,10R,11S,13S,14S,17S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)acetic acid

Prednisolone Related Compound E

CAT No: CL-PSLN-52 CAS No: 95815-58-0 Mol Wt: 376.4 Mol F: C21H28O6 Inv Status: Custom Synthesis

Chemical Name: 11?,14a,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione

Prednisolone Related Compound F

CAT No: CL-PSLN-53 CAS No: NA Mol Wt: 466.4 Mol F: C21H25Na2O7P Inv Status: Custom Synthesis

Chemical Name: Sodium (Z)-1-((8S,9S,10R,11S,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-3,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-17H-cyclopenta[a]phenanthren-17-ylidene)-2-oxoethyl phosphate

11-A.-Hydroxyprednisolone Sodium Phosphate

CAT No: CL-PSLN-54 CAS No: NA Mol Wt: 484.4 Mol F: C21H27Na2O8P Inv Status: Custom Synthesis

Chemical Name: Sodium 2-((10R,11R,13S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl phosphate

Prednisolone D-Homo Derivative

CAT No: CL-PSLN-56 CAS No: 1201919-18-7 Mol Wt: 516.4 Mol F: C22H28FNa2O8P Inv Status: Custom Synthesis

Chemical Name: Sodium ((1S,3S,10aS,10bR,11S,12aS)-10b-fluoro-1,11-dihydroxy-3,10a,12a-trimethyl-2,8-dioxo-1,2,3,4,4a,4b,5,6,8,10a,10b,11,12,12a-tetradecahydrochrysen-1-yl)methyl phosphate

Prednisolone Impurity 13

CAT No: CL-PSLN-57 CAS No: NA Mol Wt: 340.4 Mol F: C21H24O4 Inv Status: Custom Synthesis

Chemical Name: 2-((8S,9S,10R,13S,14S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoacetaldehyde

Prednisolone Impurity 14

CAT No: CL-PSLN-58 CAS No: Mol Wt: 330.4 Mol F: C20H26O4 Inv Status: Custom Synthesis

Chemical Name: (8S,10R,13S,14S,17S)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid

6?,?9?-?Difluoroprednisolone 17-?Acetate

CAT No: CL-PSLN-59 CAS No: 23674-85-3 Mol Wt: 438.5 Mol F: C23H28F2O6 Inv Status: Custom Synthesis

Chemical Name: (6S,8S,9R,10S,11S,13S,14S,17R)-6,9-difluoro-11-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl acetate

Prednisolone Carbonate

CAT No: CL-PSLN-60 CAS No: 133991-63-6 Mol Wt: 418.5 Mol F: C23H30O7 Inv Status: Custom Synthesis

Chemical Name: (10R,11S,13S,17R)-17-((ethoxycarbonyl)oxy)-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid

Isoflupropedone-21 Phosphate

CAT No: CL-PSLN-61 CAS No: 432-44-0 Mol Wt: 458.4 Mol F: C21H28FO8P Inv Status: Custom Synthesis

Chemical Name: 2-((8S,9R,10S,11S,13S,14S,17R)-9-fluoro-11,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl dihydrogen phosphate

Type:Impurity Reference Standard

API NAME:Prednisolone

Total Products: 59

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