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Levonorgestrel EP Impurity A

Product Code:

LGR/1001

CAS Number:

110785-09-6

Molecular Formula:

C21H26O2

Molecular Weight:

310.43
Synonyms : 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,8(14)-dien-20-yn-3-one.

Levonorgestrel EP Impurity B

Product Code:

LGR/1002

CAS Number:

19914-67-1

Molecular Formula:

C21H28O2

Molecular Weight:

312.45
Synonyms : 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-5(10)-en-20-yn-3-one.

Levonorgestrel EP Impurity C

Product Code:

LGR/1003

CAS Number:

1337972-89-0

Molecular Formula:

C23H28O

Molecular Weight:

320.47
Synonyms : 13-Ethyl-3-ethynyl-18,19-dinor-17α-pregna-3,5-dien-20-yn-17-ol.