raloxifene and its Impurities
A drug used in prevention of osteoporosis in postmenopausal women . It is an oral selective estrogen receptor modulator (SERM) Reference standards of Raloxifene API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

![[6-Hydroxy-2-(4-ethoxyphenyl)benzo[b]thien-3-yl] [ PA 18 03670](https://www.pharmaffiliates.com/pimages/PA1803670.jpg)
[6-Hydroxy-2-(4-ethoxyphenyl)benzo[b]thien-3-yl] [4-[2-(1-piperidinyl)ethoxy]phenyl] methanone
[6-Hydroxy-2-(4-ethoxyphenyl)benzo[b]thien-3-yl] [4-[2-(1-piperidinyl)ethoxy]phenyl] methanone
Catalogue No.:PA 18 03670
CAS :
1026927-78-5
Molecular Formula : C30H31NO4S
Molecular Weight : 501.64

![(6-Ethoxy-2-(4-hydroxyphenyl)benzo[b]thiophen-3-yl PA 18 03680](https://www.pharmaffiliates.com/pimages/PA1803680.jpg)
(6-Ethoxy-2-(4-hydroxyphenyl)benzo[b]thiophen-3-yl)(4-(2-(piperidin-1-yl)ethoxy)phenyl)methanone
(6-Ethoxy-2-(4-hydroxyphenyl)benzo[b]thiophen-3-yl)(4-(2-(piperidin-1-yl)ethoxy)phenyl)methanone
Catalogue No.:PA 18 03680
CAS :
NA
Molecular Formula : C30H31NO4S
Molecular Weight : 501.64


Raloxifene Related Compound C (1-(2-{4-[6-hydroxy-2-(4-hydroxyphenyl)benzothiophene-3-carbonyl]phen (1598234)
Raloxifene Related Compound C (1-(2-{4-[6-hydroxy-2-(4-hydroxyphenyl)benzothiophene-3-carbonyl]phen (1598234)
Catalogue No.:PA USP1598234
CAS :
195454-31-0
Molecular Formula : NA
Molecular Weight : NA


Methyl-1-(4’-tert-butyldimethylsylyl-6-hydroxyraloxifene)-2,3,4-tri-O-acetyl-β-D-glycopyranuronate
Methyl-1-(4’-tert-butyldimethylsylyl-6-hydroxyraloxifene)-2,3,4-tri-O-acetyl-β-D-glycopyranuronate
Catalogue No.:PA 18 0591000
CAS :
174264-49-4
Molecular Formula : C47H57NO13SSi
Molecular Weight : 904.11


Methyl-1-(6-tert-butyldimethylsylyl-4’-hydroxyraloxifene)-2,3,4-tri-O-acetyl-β-D-glycopyranuronate
Methyl-1-(6-tert-butyldimethylsylyl-4’-hydroxyraloxifene)-2,3,4-tri-O-acetyl-β-D-glycopyranuronate
Catalogue No.:PA 18 0591001
CAS :
174264-48-3
Molecular Formula : C47H57NO13SSi
Molecular Weight : 904.11


4-(6-((Methylsulfonyl)oxy)-3-(4-(2-(piperidin-1-yl)ethoxy)benzoyl)benzo[b]thiophen-2-yl)phenyl methanesulfonate
4-(6-((Methylsulfonyl)oxy)-3-(4-(2-(piperidin-1-yl)ethoxy)benzoyl)benzo[b]thiophen-2-yl)phenyl methanesulfonate
Catalogue No.:PA 18 0591004
CAS :
84541-30-0
Molecular Formula : C30H31NO8S3
Molecular Weight : 629.76

![2-(4-Methoxyphenyl)benzo[b]thiophen-6-ol compound PA 18 0591005](https://www.pharmaffiliates.com/pimages/PA180591005.jpg)
2-(4-Methoxyphenyl)benzo[b]thiophen-6-ol compound with 4-(6-methoxybenzo[b]thiophen-2-yl)phenol (1:1)
2-(4-Methoxyphenyl)benzo[b]thiophen-6-ol compound with 4-(6-methoxybenzo[b]thiophen-2-yl)phenol (1:1)
Catalogue No.:PA 18 0591005
CAS :
NA
Molecular Formula : C30H24O4S2
Molecular Weight : 512.64