Impurity Reference Standard - Products

Spironolactone

CAT No: CL-SPCT-01 CAS No: 52-01-7 Mol Wt: 416.6 Mol F: C24H32O4S Inv Status: In Stock

Chemical Name: S-[(2'R)-3,5'-Dioxo-3',4'-Dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-7a-yl] ethanethioate ;(2'R)-7a-(Acetylthio)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione (as per USP)

Spironolactone EP Impurity A

CAT No: CL-SPCT-02 CAS No: 132458-33-4 Mol Wt: 414.5 Mol F: C24H30O4S Inv Status: Custom Synthesis

Chemical Name: S-[(2'R)-3,5'-Dioxo-5'H-spiro[androst-4-ene-17,2'-furan]-7a-yl] ethanethioate ; (2'R)-7a-(Acetylthio)-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione (as per USP)

Spironolactone EP Impurity B

CAT No: CL-SPCT-03 CAS No: NA Mol Wt: 495.4 Mol F: C24H31BrO4S Inv Status: Custom Synthesis

Chemical Name: S-[(2'R)-4-Bromo-3,5'-dioxo-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-7a-yl] ethanethioate

Spironolactone EP Impurity C

CAT No: CL-SPCT-04 CAS No: 976-70-5 Mol Wt: 342.4 Mol F: C22H30O3 Inv Status: Custom Synthesis

Chemical Name: (2'R)-3',4'-Dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione (as per EP & USP)

Spironolactone EP Impurity D

CAT No: CL-SPCT-05 CAS No: .jpg Mol Wt: 448.6 Mol F: C24H32O4S2 Inv Status: Custom Synthesis

Chemical Name: S-[(2'R)-3,5'-Dioxo-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-7a-yl] ethane(dithioperoxate) (2'R)-7a-(Acetyldisulfanyl)-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-3,5'-dione (as per USP)

Spironolactone EP Impurity E

CAT No: CL-SPCT-06 CAS No: 33784-05-3 Mol Wt: 416.5 Mol F: C24H32O4S Inv Status: Custom Synthesis

Chemical Name: S-[(2'R)-3,5'-Dioxo-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-7?yl] ethanethioate

Spironolactone EP Impurity F

CAT No: CL-SPCT-07 CAS No: 976-71-6 Mol Wt: 340.5 Mol F: C22H28O3 Inv Status: Custom Synthesis

Chemical Name: (2'R)-3',4'-Dihydro-5'H-spiro[androst-4,6-diene-17,2'-furan]-3,5'-dione (as per EP & USP)

Spironolactone EP Impurity G

CAT No: CL-SPCT-08 CAS No: 880106-10-5 Mol Wt: 432.6 Mol F: C24H32O5S Inv Status: Custom Synthesis

Chemical Name: S-[(2'R)-6?Hydroxy-3,5'-dioxo-3',4'-dihydro-5'H-spiro[androst-4-ene-17,2'-furan]-7a-yl] ethanethioate

Spironolactone EP Impurity H

CAT No: CL-SPCT-09 CAS No: 53866-24-3 Mol Wt: 298.4 Mol F: C20H26O2 Inv Status: Custom Synthesis

Chemical Name: (2'S)-Spiro[androst-4,6-diene-17,2'-oxiran]-3-one

Spironolactone EP Impurity I

CAT No: CL-SPCT-10 CAS No: NA Mol Wt: 420.6 Mol F: C24H36O4S Inv Status: Custom Synthesis

Chemical Name: S-[17a-(Ethoxymethyl)-17?hydroxy-3-oxoandrost-4-en-7a-yl] ethanethioate ; S-[17a-(Ethoxymethyl)-17-hydroxy-3-oxoandrost-4-en-7a-yl]ethanethioate (as per USP)

7-Alpha-Thiomethyl Spironolactone

CAT No: CL-SPCT-11 CAS No: 38753-77-4 Mol Wt: 388.6 Mol F: C23H32O3S Inv Status: Custom Synthesis

Chemical Name: (7R,8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-7-(methylthio)-1,3',4',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H)-dione

Spironolactone Acid

CAT No: CL-SPCT-12 CAS No: NA Mol Wt: 434.6 Mol F: C24H34O5S Inv Status: Custom Synthesis

Chemical Name: 3-((7R,8R,9S,10R,13S,14S,17R)-7-(Acetylthio)-17-hydroxy-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)propanoic acid

7a-Thiomethylspironolactone sulfoxide

CAT No: CL-SPCT-13 CAS No: 38753-75-2 Mol Wt: 402.6 Mol F: C23H30O4S Inv Status: Custom Synthesis

Chemical Name: (7R,8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-7-((S)-methylsulfinyl)-1,3',4',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H)-dione

Spironolactone Impurity 2

CAT No: CL-SPCT-14 CAS No: 4138-96-9 Mol Wt: 312.5 Mol F: C21H28O2 Inv Status: Custom Synthesis

Chemical Name: (10S,13S)-3-Ethoxy-10,13-dimethyl-1,2,7,10,11,12,13,14,15,16-decahydro-17H-cyclopenta[a]phenanthren-17-one

Spironolactone Impurity 3

CAT No: CL-SPCT-15 CAS No: NA Mol Wt: 328.5 Mol F: C21H28O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-1,2,3',4',7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5',6-trione

7a-Thio Spironolactone

CAT No: CL-SPCT-16 CAS No: 38753-76-3 Mol Wt: 375.4 Mol F: C22H30O3S Inv Status: Custom Synthesis

Chemical Name: (7R,8R,9S,10R,13S,14S,17S)-7-Mercapto-10,13-dimethyl-1,3',4',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H)-dione;

Spironolactone Epimer Mixture

CAT No: CL-SPCT-17 CAS No: NA Mol Wt: 416.6 Mol F: C24H32O4S Inv Status: Custom Synthesis

Chemical Name: ((2)-7?(Acetylthio)-3?4?dihydro-5?-spiro[androst-4-ene-17,2?furan]-3,5?dione) (as per USP) with ((2?)-7a-(Acetylthio)-3?4?dihydro-5?-spiro[androst-4-ene-17,2?furan]-3,5?dione) (as per USP)

Spironolactone Gammalactone Impurity

CAT No: CL-SPCT-18 CAS No: 20802-57-7 Mol Wt: 416.6 Mol F: C24H32O4S Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-3-Methoxy-10,13-dimethyl-1,2,3',4',7,8,9,10,11,12,13,14,15,16-tetradecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-5'-one

Spironolactone 17-Beta Isomer

CAT No: CL-SPCT-19 CAS No: 207456-31-3 Mol Wt: 416.6 Mol F: C24H32O4S Inv Status: Custom Synthesis

Chemical Name: S-((7R,8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-7-yl) ethanethioate

Spironolactone Impurity 1

CAT No: CL-SPCT-20 CAS No: NA Mol Wt: 360.5 Mol F: C23H36O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S)-3,3-Diethoxy-10,13-dimethyl-1,2,3,6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-17H-cyclopenta[a]phenanthren-17-one

Spironolactone Impurity 4

CAT No: CL-SPCT-22 CAS No: NA Mol Wt: 300.4 Mol F: C20H28O2 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17S)-10,13-Dimethyl-1,6,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,2'-oxiran]-3(2H)-one

Spironolactone Impurity 5

CAT No: CL-SPCT-23 CAS No: NA Mol Wt: 328.5 Mol F: C22H32O2 Inv Status: Custom Synthesis

Chemical Name: (10R,13S,17R)-3-Ethoxy-10,13-dimethyl-1,2,7,8,9,10,11,12,13,14,15,16-dodecahydrospiro[cyclopenta[a]phenanthrene-17,2'-oxirane]

Spironolactone Impurity 6

CAT No: CL-SPCT-24 CAS No: NA Mol Wt: 382.5 Mol F: C23H26O5 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5'-dioxo-3,4',5',8,9,10,11,12,13,14,15,16-dodecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-4'-carboxylic acid

Spironolactone Impurity 7

CAT No: CL-SPCT-25 CAS No: NA Mol Wt: 386.5 Mol F: C23H30O5 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-4'-carboxylic acid

Spironolactone Impurity 8

CAT No: CL-SPCT-26 CAS No: 92588-48-2 Mol Wt: 344.5 Mol F: C22H32O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17S)-17-(Ethoxymethyl)-17-hydroxy-10,13-dimethyl-1,2,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Spironolactone Impurity 9

CAT No: CL-SPCT-27 CAS No: NA Mol Wt: 338.4 Mol F: C22H26O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-3',4',9,10,11,12,13,14,15,16-decahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(8H)-dione

Spironolactone Impurity 10

CAT No: CL-SPCT-28 CAS No: NA Mol Wt: 312.5 Mol F: C21H28O2 Inv Status: Custom Synthesis

Chemical Name: (10S,13S)-3-Ethoxy-10,13-dimethyl-1,2,7,10,11,12,13,14,15,16-decahydro-17H-cyclopenta[a]phenanthren-17-one

Spironolactone Impurity 11

CAT No: CL-SPCT-29 CAS No: NA Mol Wt: 328.5 Mol F: C21H28O3 Inv Status: Custom Synthesis

Chemical Name: (8R,9S,10R,13S,14S)-3-Ethoxy-10,13-dimethyl-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-6,17-dione

Spironolactone Impurity 12

CAT No: CL-SPCT-30 CAS No: NA Mol Wt: 418.6 Mol F: C24H34O4S Inv Status: Custom Synthesis

Chemical Name: S-((5S,8S,9S,10S,13S,14S,17R)-10,13-Dimethyl-3,5'-dioxooctadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-1-yl) ethanethioate

Spironolactone Impurity 13

CAT No: CL-SPCT-31 CAS No: NA Mol Wt: 430.6 Mol F: C24H30O5S Inv Status: Custom Synthesis

Chemical Name: S-((8S,9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5',6-trioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-1-yl) ethanethioate

Spironolactone Impurity 14

CAT No: CL-SPCT-32 CAS No: NA Mol Wt: 428.5 Mol F: C24H28O5S Inv Status: Custom Synthesis

Chemical Name: S-((9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5',6-trioxo-1,2,3,4',5',6,9,10,11,12,13,14,15,16-tetradecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-1-yl) ethanethioate

Spironolactone D7

CAT No: CL-SPCT-33 CAS No: NA Mol Wt: 423.6 Mol F: C24H25D7O4S Inv Status: Custom Synthesis

Chemical Name: (7?,7?)-7-Acetylthyo-17-hydroxy-3-oxopregn-4-one-21-carboxylic Acid ?-Lactone-d7

Spironolactone D3

CAT No: CL-SPCT-34 CAS No: NA Mol Wt: 419.6 Mol F: C24H29D3O4S Inv Status: Custom Synthesis

Chemical Name: S-((7R,8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-7-yl) ethanethioate-d3

Spironolactone D6

CAT No: CL-SPCT-35 CAS No: NA Mol Wt: 422.6 Mol F: C24H26D6O4S Inv Status: Custom Synthesis

Chemical Name: S-((7R,8R,9S,10R,13S,14S,17R)-10,13-Dimethyl-3,5'-dioxo-1,2,3,4',5',6,7,8,9,10,11,12,13,14,15,16-hexadecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-7-yl-2,2,4,4',4',7-d6) ethanethioate

Type:Impurity Reference Standard

API NAME:Spironolactone

Total Products: 34

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