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Name of parent drug:
Raloxifene

Raloxifene Impurity D
Raloxifene Impurity D

4-(2-(Piperidin-1-yl) ethoxy)-benzoic acid hydrochloride

Catalogue No : VL270001

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Raloxifene Impurity C (Raloxifene Impurity A)
Raloxifene Impurity C (Raloxifene Impurity A)

[6-hydroxy-2-(4-hydroxyphenyl)-1-benzothiophen-3-yl] [4-[2-(piperidin-1-yl)ethoxy]phenyl]methanon N-oxide.

Catalogue No : VL270002

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Ramipril Impurity-G
Ramipril Impurity-G

methylbenzene

Catalogue No : VL129002

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Ramipril Impurity C
Ramipril Impurity C

(2S,3aS,6aS)-1-[(S)-2-[[(S)-1-(Ethoxycarbonyl)-3- cyclohexylpropyl]amino]propanoyl] octahydrocyclopenta[b]pyrrole-2-carboxylic acid hydrochloride

Catalogue No : VL129005

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Ramipril Impurity O
Ramipril Impurity O

Diethyl 2,2’ -(2,5-dimethyl-3,6-dioxopiperazine-1,4-diyl)bis(4-phenylbutanoate)

Catalogue No : VL129003

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Ramipril Impurity K
Ramipril Impurity K

(R)-2-((3S,5aS,8aS,9aS)-3-methyl-1,4-dioxooctahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-2(5aH)-yl)-4-phenylbutanoic Acid

Catalogue No : VL129004

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Ranitidine EP Impurity I
Ranitidine EP Impurity I

2,2’-Methylenebis[N-[2-[[[5-[(dimethylamino)methyl]-furan-2-yl]methyl] sulfanyl]ethyl]-N’-methyl-2-nitroethene-1,1-diamine]

Catalogue No : VL220013

CAS No : 72078-82-1

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Ranitidine Related Compound A
Ranitidine Related Compound A

2-[[[5-[(Dimethylamino)methyl]-furan-2-yl]methyl]sulfanyl]ethanamine

Catalogue No : VL220003

CAS No : 66356-53-4

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Ranitidine N-Oxide / Ranitidine EP Impurity E
Ranitidine N-Oxide / Ranitidine EP Impurity E

N-[2-[[[5-[(Dimethyloxidoamino)methyl]furan-2-yl]methyl]sulfanyl]ethyl]-N’-methyl-2-nitroethene-1,1-diamine

Catalogue No : VL220008

CAS No : 73857-20-2

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Ranitidine Related Compound B / Ranitidine EP Impurity A
Ranitidine Related Compound B / Ranitidine EP Impurity A

N,N-bis{2-[({5-[(Dimethylamino)methyl]-2-furanyl}methyl)thio]ethyl}-2-nitro- 1,1-ethenediamine

Catalogue No : VL220001

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Ranitidine Related Compound C / Ranitidine EP Impurity C
Ranitidine Related Compound C / Ranitidine EP Impurity C

N-[2-[[[5-[(dimethylamino)methyl]furan-2-yl]methyl]sulphinyl]ethyl]-N’-methyl-2-nitroethene-1,1-diamine

Catalogue No : VL220002

CAS No : 73851-70-4

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Ranolazine Mono Amide Impurity
Ranolazine Mono Amide Impurity

2-Chloro-N-(2,6-dimethyl-phenyl)-acetamide

Catalogue No : VL770005

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Ranolazine N-oxide Impurity
Ranolazine N-oxide Impurity

1-(2-((2,6-dimethylphenyl)amino)-2-oxoethyl)-4-(2-hydroxy-3-(2- methoxyphenoxy)propyl)piperazine 1-oxide

Catalogue No : VL770001

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Ranolazine N,N-Dioxide Impurity
Ranolazine N,N-Dioxide Impurity

1-(2-((2,6-dimethylphenyl)amino)-2-oxoethyl)-4-(2-hydroxy-3-(2- methoxyphenoxy)propyl)piperazine 1,4-dioxide

Catalogue No : VL770002

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Ranolazine Bis -2,6- DMPAC Methyl Piperazine Impurity/Ranolazine Related Compound D/Ranolazine Dimer
Ranolazine Bis -2,6- DMPAC Methyl Piperazine Impurity/Ranolazine Related Compound D/Ranolazine Dimer

2,2-(piperazine -1,4-diyl)bis(N-(2,6-dimethylphenyl) acetamide)

Catalogue No : VL770003

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Ranolazine DMPAC Methyl Piperazine Impurity/Ranolazine related compound C
Ranolazine DMPAC Methyl Piperazine Impurity/Ranolazine related compound C

N-(2,6-dimethylphenyl)-2-(piperazine-1-yl) acetamide

Catalogue No : VL770004

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Rasagiline Allyl Impurity
Rasagiline Allyl Impurity

Allyl-indan-1yl-amine

Catalogue No : VL255001

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Rasagiline Keto Impurity
Rasagiline Keto Impurity

3-(prop-2-yn-1-ylamino)-2,3-dihydro-1H-inden-1-one

Catalogue No : VL255007

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Rasagiline Allyl Amine Impurity
Rasagiline Allyl Amine Impurity

2-Propen-1-amine

Catalogue No : VL255003

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Rasagiline 1 Amino Indane
Rasagiline 1 Amino Indane

2,3-dihydro-1H-inden-1-amine.

Catalogue No : VL255005

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Rasagiline 1-indane-One (1-Indanone)
Rasagiline 1-indane-One (1-Indanone)

2,3-dihydro-1H-inden-1-one.

Catalogue No : VL255004

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Rasagiline 1-Indanol
Rasagiline 1-Indanol

2,3-dihydro-1H-inden-1-ol.

Catalogue No : VL255006

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Rasagiline 2-chloro Allyl Impurity
Rasagiline 2-chloro Allyl Impurity

N-(2-chloroallyl)-2,3-dihydro-1H-inden-1-amine

Catalogue No : VL255002

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Rifampicin N-Oxide
Rifampicin N-Oxide

3-[[(4-Methyl-4-oxido-1-piperazinyl) imino]methyl]rifamycin

Catalogue No : VL2760001

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Risperidone N-Oxide
Risperidone N-Oxide

3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-oxido-1-piperidinyl]ethyl]-6,7,8,9- tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520006

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Risperidone E-Oxime / Risperidone EP Impurity A
Risperidone E-Oxime / Risperidone EP Impurity A

3-[2-[4-[(E)-(2,4-difluorophenyl)(hydroxyimino)methyl] piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520001

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Risperidone Z-Oxime / Risperidone EP Impurity B
Risperidone Z-Oxime / Risperidone EP Impurity B

3-[2-[4-[(Z)-(2,4-Difluorophenyl) (hydroxyimino) methyl]piperidin-1-yl]ethyl]-2- methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520002

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Risperidone 5-Fluoro Isomer / Risperidone EP Impurity D
Risperidone 5-Fluoro Isomer / Risperidone EP Impurity D

3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9- tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520004

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9-keto risperidone
9-keto risperidone

3-(2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-7,8-dihydro-2-methyl-6H-pyrido[1,2-a]pyrimidine-4,9-dione

Catalogue No : VL1520007

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9-Hydroxy Risperidone / Risperidone EP Impurity C
9-Hydroxy Risperidone / Risperidone EP Impurity C

(9RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-9-hydroxy-2- methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520003

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6-Methyl Risperidone / Risperidone EP Impurity E
6-Methyl Risperidone / Risperidone EP Impurity E

(6RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl- 6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Catalogue No : VL1520005

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Ritonavir Impurity G (Hydroperoxide Impurity)
Ritonavir Impurity G (Hydroperoxide Impurity)



Catalogue No : VL860001

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Rivastigmine Quaternary Salt
Rivastigmine Quaternary Salt

((S)-1-(3-{[Ethyl(methyl)carbamoyl]oxy}phenyl)-N,N,N-trimethylethanaminium chloride)

Catalogue No : VL226002

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Rivastigmine Desmethyl Impurity
Rivastigmine Desmethyl Impurity

3-((S)-1-(dimethylamino)ethyl)phenyl ethylcarbamate

Catalogue No : VL226001

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Rizatriptan EP Impurity C
Rizatriptan EP Impurity C

N,N-Dimethyl-5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indole-2-ethanamine

Catalogue No : VL221001

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Rizatriptan Desmethyl Impurity / Rizatriptan EP Impurity I
Rizatriptan Desmethyl Impurity / Rizatriptan EP Impurity I

2-{5-[(1H-1,2,4-Triazol-1-yl)methyl]-1H-indol-3-yl}-N-methylethanamine

Catalogue No : VL221002

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Rizatriptan N-Oxide / Rizatriptan EP Impurity H
Rizatriptan N-Oxide / Rizatriptan EP Impurity H

2-(5-((1H-1,2,4-triazol-1-yl)methyl)-1H-indol-3-yl)-N,N-dimethylethanamine oxide

Catalogue No : VL221003

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Rizatriptan N-methyl Adduct
Rizatriptan N-methyl Adduct

N-methyl-2-[6-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethanamine

Catalogue No : VL221004

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Roflumilast Impurity / H-RFLRC01
Roflumilast Impurity / H-RFLRC01

3, 5-dimethylpyridin-4-amine

Catalogue No : VL640005

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Roflumilast Impurity / H-RFLRC02
Roflumilast Impurity / H-RFLRC02

3-(cyclopropylmethoxy)-4-(difluoromethoxy) benzoic acid

Catalogue No : VL640006

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Roflumilast Impurity / H-RFLRC03
Roflumilast Impurity / H-RFLRC03

N-(3, 5-dichloropyridin-4-yl)-3, 4-bis (difluoromethoxy) benzamide

Catalogue No : VL640007

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Roflumilast Impurity / H-RFLRC04
Roflumilast Impurity / H-RFLRC04

3, 5-dichloro-4-(3-(cyclopropylmethoxy)-4-(difluoromethoxy) benzamido) pyridine 1-oxide

Catalogue No : VL640008

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Roflumilast Impurity / H-RFLRC05
Roflumilast Impurity / H-RFLRC05

4-(cyclopropylmethoxy)-N-(3, 5-dichloropyridin-4-yl)-3-(difluoromethoxy) benzamide

Catalogue No : VL640009

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Roflumilast Impurity / H-RFLRC06
Roflumilast Impurity / H-RFLRC06

3, 4-bis (cyclopropylmethoxy)-N-(3, 5-dichloropyridin-4-yl) benzamide

Catalogue No : VL640010

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Roflumilast Impurity / H-RFLRC07
Roflumilast Impurity / H-RFLRC07

3-(but-3-en-1-yloxy)-N-(3, 5-dichloropyridin-4-yl)-4-(difluoromethoxy) benzamide

Catalogue No : VL640011

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Roflumilast Impurity DP-1
Roflumilast Impurity DP-1

3,5-dichloropyridin-4-amine

Catalogue No : VL640001

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Roflumilast Impurity DP-2
Roflumilast Impurity DP-2

N-(3,5-dichloropyridin-4-yl)-4-(difluoromethoxy)-3-hydroxybenzamide

Catalogue No : VL640002

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Roflumilast Impurity DP-3
Roflumilast Impurity DP-3

3-(cyclo3ropylmethoxy)-N-(3,5-dichloropyridin-4-yl)-4-hydroxybenzamide

Catalogue No : VL640003

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Roflumilast Impurity (DP-4)
Roflumilast Impurity (DP-4)

3, 5-dichloro-4-(3-(cyclopropylmethoxy)-4-(difluoromethoxy) benzamido) pyridine 1-oxide

Catalogue No : VL640004

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Ropinirole Related Compound A
Ropinirole Related Compound A

4-(2-hydroxyethyl)indolin-2-one

Catalogue No : VL262009

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Ropinirole Methylene Dimer
Ropinirole Methylene Dimer

3,3’-methylenebis(4-(2-(dipropylamino)ethyl)indolin-2-one)

Catalogue No : VL262011

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Ropinirole N-Oxide
Ropinirole N-Oxide

1,3-Dihydro-4-[2-(oxidodipropylamino)ethyl]-2H-indol-2-one.

Catalogue No : VL262003

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N-Hydroxy Ropinirole
N-Hydroxy Ropinirole

4-[2-(Dipropylamino)ethyl]-1,3-dihydro-1-hydroxy-2H-indol-2-oneHydrochloride

Catalogue No : VL262001

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Ropinirole Impurity A (Monopropyl Ropinirole)
Ropinirole Impurity A (Monopropyl Ropinirole)

4-[2-(Propylamino)Ethyl]-1,3-Dihydro-2h-Indol-2-One

Catalogue No : VL262002

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Ethyl Ropinirole
Ethyl Ropinirole

4-(2-(dipropylamino)ethyl)-1-ethylindolin-2-one.

Catalogue No : VL262007

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Ropinirole Propylidene
Ropinirole Propylidene

4-[2-(Dipropylamino)ethyl]-3-propylideneindolin-2-one

Catalogue No : VL262004

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Ropinirole Cyclopentanylindolinone impurity
Ropinirole Cyclopentanylindolinone impurity

3,4-dihydro-1H-cyclopenta[cd]indol-2(2aH)-one

Catalogue No : VL262005

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Methylene Ropinirole
Methylene Ropinirole

4-(2-(dipropylamino)ethyl)-3-methyleneindolin-2-one

Catalogue No : VL262006

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Ropinirole Open Ring Impurity Derivative
Ropinirole Open Ring Impurity Derivative

2-(2-(2-(dipropylamino)ethyl)-6-nitrophenyl)acetic acid.

Catalogue No : VL262008

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N-Hydroxymethyl Ropinirole
N-Hydroxymethyl Ropinirole

4-(2-(dipropylamino)ethyl)-1-(hydroxymethyl)indolin-2-one

Catalogue No : VL262010

CAS No : 1027600-42-5

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Ropivacaine Related Compound A / 2,6-dimethylbenzenamine
Ropivacaine Related Compound A / 2,6-dimethylbenzenamine

2,6-dimethylbenzenamine

Catalogue No : VL660001

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Rosuvastatin EP Impurity J
Rosuvastatin EP Impurity J

3R,5S,E)-7-(4-(4-fluorophenyl)-2-((E)-2-(4-(4-fluorophenyl)-2-(Nmethylmethylsulfonamido)pyrimidin-5-yl)-N-methylvinylsulfonamido)-6-isopropylpyrimidin-5-yl)-3,5-dihydroxyhept-6-enoic Acid (Calcium salt)

Catalogue No : VL127014

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Rosuvastatin EP Impurity H
Rosuvastatin EP Impurity H

3R,5RS)-5-[8-Fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6- dihydrobenzo[h]quinazolin-6-yl]-3,5-dihydroxypentanoicacid calcium salt

Catalogue No : VL127015

CAS No : 1335110-44-5

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Rosuvastatin EP Impurity I
Rosuvastatin EP Impurity I

(3S,5R)-5-((S)-8-Fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6- dihydrobenzo[h]quinazolin-6-yl)-3,5-dihydroxypentanoate Sodium Salt

Catalogue No : VL127016

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Rosuvastatin Related Compound C Standard / Rosuvastatin EP Impurity F
Rosuvastatin Related Compound C Standard / Rosuvastatin EP Impurity F

tert-butyl 2-((4R,6S)-6-((E)-2-(4-(4-fluorophenyl)-6-isopropyl-2-(Nmethylmethylsulfonamido) pyrimidin-5-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate

Catalogue No : VL127004

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Rosuvastatin EP Impurity E / Rosuvastatin Related compound B
Rosuvastatin EP Impurity E / Rosuvastatin Related compound B

(3R,5S,E)-7-(4-(4-fluorophenyl)-2-(2-(4-(4-fluorophenyl)-6-isopropyl-2-(Nmethylmethylsulfonamido) pyrimidin-5-yl)-2-hydroxy-N-methylethylsulfonamido)-6- isopropylpyrimidin-5-yl)-3,5-dihydroxyhept-6-enoic acid

Catalogue No : VL127005

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Rosuvastatin Z-Isomer
Rosuvastatin Z-Isomer

(3R,5R.6E)-7-[4-(4-fluorophenyl)-2-(N-methylmethanesulfonamido)-6-(propan-2-yl)pyrimidine-5-yl]-3-dihydroxyhept-6-enoic acid calcium salt

Catalogue No : VL127011

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Rosuvastatin EP Impurity C / Rosuvastatin B2 Standard / 5-oxo Rosuvastatin / 5-Keto Impurity
Rosuvastatin EP Impurity C / Rosuvastatin B2 Standard / 5-oxo Rosuvastatin / 5-Keto Impurity

(R,E)-7-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)-3-hydroxy-5-oxohept-6-enoate calcium salt.

Catalogue No : VL127003

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Rosuvastatin Related Compound A/Rosuvastatin EP Impurity A
Rosuvastatin Related Compound A/Rosuvastatin EP Impurity A

(3R,5S,6E)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl[(2-hydroxy-2-methylpropyl)sulfonyl]amino]-5-pyrimidinyl]-3,5-dihydroxy-6-heptenoic acid Calcium Salt;

Catalogue No : VL127008

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Rosuvastatin 3S 5S isomer
Rosuvastatin 3S 5S isomer

(3S,5S,6E)-7-[4-(4-fluorophenyl)-2-(N-methylmethanesulfonamido)-6-(propan-2-yl)pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoic acid Calcium salt

Catalogue No : VL127007

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Rosuvastatin Tert-Butyl Ester
Rosuvastatin Tert-Butyl Ester

Tert-butyl-rosuvastatin

Catalogue No : VL127010

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6,7 dihydro Rosuvastatin Calcium
6,7 dihydro Rosuvastatin Calcium

(3R,5S)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl (methyl sulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy-heptanoic acid calcium salt

Catalogue No : VL127006

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Rosuvastatin Related Compound D/3S, 5R Rosuvastatin / Rosuvastatin EP Impurity G
Rosuvastatin Related Compound D/3S, 5R Rosuvastatin / Rosuvastatin EP Impurity G

(3S,5R,6E)-7-[4-(4-fluorophenyl)-2-(N-methylmethanesulfonamido)-6-(propan-2- yl)pyrimidin-5-yl]-3,5-dihydroxyhept-6-enoate calcium.

Catalogue No : VL127009

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Rosuvastatin Lactone Standard/ Rosuvastatin EP Impurity D
Rosuvastatin Lactone Standard/ Rosuvastatin EP Impurity D

N-[4-(4-Fluorophenyl)-6-(1-methylethyl)-5-[(1E)-2-[(2S,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]ethenyl]-2-pyrimidinyl]-N-methyl-methanesulfonamide

Catalogue No : VL127002

CAS No : 503610-43-3

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Rufinamide Related Compound B
Rufinamide Related Compound B

Methyl 1-(2,6-Difluorobenzyl)-1H-1,2,3-triazole-4-carboxylate

Catalogue No : VL3000002

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Rufinamide Impurity 6 / USP Rufinamide Related Compound A
Rufinamide Impurity 6 / USP Rufinamide Related Compound A

1-[(2-Fluorophenyl)methyl]-1H-1,2,3-triazole-4-carboxamide

Catalogue No : VL3000001

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Rufinamide Impurity 1 / 2,6-Didesfluoro Rufinamide
Rufinamide Impurity 1 / 2,6-Didesfluoro Rufinamide

1-(Phenylmethyl)-1H-1,2,3-triazole-4-carboxamide

Catalogue No : VL3000003

CAS No : 80819-65-4

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