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Eplerenone EP Impurity B

CAS No.
192704-82-8
Chemical Name:
Eplerenone EP Impurity B
Synonyms
Eplerenone Impurity B;Eplerenone EP Impurity B;Eplerenone Impurity 4(Eplerenone EP Impurity B);11α,12α-Epoxy-7α-(methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21,17-carbolactone;11alpha,12alpha-Epoxy-7alpha-(methoxycarbonyl)-3-oxo-17alpha-pregn-4-ene-21,17-carbolactone;(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester;Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, 21,17-lactone, 7-methyl ester, (7α,11α,12α,17α)-;(7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester;(1R,3aS,3bS,4R,9aR,9bS,9cS,10aR,10bR)-Methyl 9a,10b-dimethyl-5',7-dioxo-2,3,3a,3b,4,4',5,5',7,8,9,9a,9b,9c,10a,10b-hexadecahydro-3'H-spiro[cyclopenta[1,2]phenanthro[3,4-b]oxirene-1,2'-furan]-4-carboxylate (Eplerenone Impurity)
CBNumber:
CB33133904
Molecular Formula:
C24H30O6
Molecular Weight:
414.49
MDL Number:
MOL File:
192704-82-8.mol
Last updated:2026-07-28 20:33:19
Product description Number Pack Size Price
(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 439893 1mg $502
(7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester TRC-E589325-1MG 1mg $242
(7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester TRC-E589325-10MG 10mg $1904
(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester AA01E3H5 1mg $314
(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester AA01E3H5 25mg $1290
More product size

Eplerenone EP Impurity B Properties

Melting point 209-210 °C (orthorhombic)
Boiling point 592.6±50.0 °C(Predicted)
Density 1.30±0.1 g/cm3(Predicted)
solubility Chloroform (Slightly), Dichloromethane (Slightly), DMSO (Slightly), Methanol (Slightly)
form Solid
color White to Off-White
InChIKey QBIRIYASLUPKQB-GEXXJUJESA-N
FDA UNII J3826B2RSY

Eplerenone EP Impurity B price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 439893 (7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 192704-82-8 1mg $502 2026-06-03 Buy
TRC TRC-E589325-1MG (7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 192704-82-8 1mg $242 2026-06-03 Buy
TRC TRC-E589325-10MG (7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 192704-82-8 10mg $1904 2026-06-03 Buy
aablocks AA01E3H5 (7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 192704-82-8 1mg $314 2026-05-30 Buy
aablocks AA01E3H5 (7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 192704-82-8 25mg $1290 2026-05-30 Buy
Product number Packaging Price Buy
439893 1mg $502 Buy
TRC-E589325-1MG 1mg $242 Buy
TRC-E589325-10MG 10mg $1904 Buy
AA01E3H5 1mg $314 Buy
AA01E3H5 25mg $1290 Buy

Eplerenone EP Impurity B Chemical Properties,Uses,Production

Uses

(7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester is an impurity of eplerenone (E588775). Eplerenone is a selective aldosterone receptor antagonist (SARA), structurally similar to Spiranolactone. Eplerenone is used alone or in combination with other medications to treat high blood pressure. Eplerenone is in a class of medications called mineralocorticoid receptor antagonists. It works by blocking the action of aldosterone, a natural substance in the body that raises blood pressure.

Eplerenone EP Impurity B Preparation Products And Raw materials

Raw materials

Preparation Products

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Eplerenone EP Impurity B Eplerenone Impurity B Eplerenone Impurity 4(Eplerenone EP Impurity B) (7α,11α,12α,17α)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, 21,17-lactone, 7-methyl ester, (7α,11α,12α,17α)- (1R,3aS,3bS,4R,9aR,9bS,9cS,10aR,10bR)-Methyl 9a,10b-dimethyl-5',7-dioxo-2,3,3a,3b,4,4',5,5',7,8,9,9a,9b,9c,10a,10b-hexadecahydro-3'H-spiro[cyclopenta[1,2]phenanthro[3,4-b]oxirene-1,2'-furan]-4-carboxylate (Eplerenone Impurity) 11alpha,12alpha-Epoxy-7alpha-(methoxycarbonyl)-3-oxo-17alpha-pregn-4-ene-21,17-carbolactone (7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester 11α,12α-Epoxy-7α-(methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21,17-carbolactone 192704-82-8