• Worldwide Shipping
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
RFQ List 0
Enquiry / RFQ
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Impurities

SynThink is a producer and supplier of a number of pharmaceutical Reference Standards (Impurity Standards) which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products. Many API Impurities are available in our stock.

ABCDEFGHIJKLMNOPQRSTUVWXYZ
3S3R4S-Desfluoro-Ezetimibe

,

(3’S,3R,4S)-Desfluoro Ezetimibe
$250.00 25 mg
In Stock

CAS No.

: 190595-66-5

Mol F.

: C24H22FNO3

Mol W.

: 391.43

Cat No.

: SA14808

3S-ent-Ezetimibe-SSR-Ezetimibe

,

(3’S)-ent-Ezetimibe; SSR-Ezetimibe
$275.00 25 mg
In Stock

CAS No.

: 1593543-00-0

Mol F.

: C24H21F2NO3

Mol W.

: 409.43

Cat No.

: SA14814

SA32517

,

(3aR,4S,6R,6aS)-6-Aminotetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-ol
Please enquire for price & pack size
In Stock

CAS No.

: 155899-66-4

Mol F.

: C8H15NO3

Mol W.

: 173.21

Cat No.

: SA32517

3E-23-Dihydro-3-methoxyphenylmethylene-2-oxo-1H-Indole-6-carboxylic-Acid-Methyl-Ester

,

(3E)-2,3-Dihydro-3-(methoxyphenylmethylene)-2-oxo-1H-Indole-6-carboxylic Acid Methyl Ester
$85.00 25 mg
In Stock

CAS No.

: 1168150-46-6

Mol F.

: C18H15NO4

Mol W.

: 309.31

Cat No.

: SA22508

SA43320

,

(3R,4R)-1-Benzyl-N,4-dimethylpiperidin-3-amine dihydrochloride
$90.00 25 mg
In Stock

CAS No.

: 1062580-52-2 (2HCl)

Mol F.

: C14H24Cl2N2

Mol W.

: 291.26

Cat No.

: SA43320

3R5R-6-Cyano-35-dihydroxy-hexanoic-Acid-tert-Butyl-Ester

,

(3R,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester
$395.00 500 mg
In Stock

CAS No.

: 125971-93-9

Mol F.

: C11H19NO4

Mol W.

: 229.27

Cat No.

: SA17841

3R5R-Atorvastatin-Amide-impurity

,

(3R,5R)-Atorvastatin Amide impurity
$250.00 25 mg
In Stock

CAS No.

: 2125501-02-0

Mol F.

: C33H36FN3O4

Mol W.

: 557.66

Cat No.

: SA17844

3R5R-tert-butyl-6-chloro-35-dihydroxyhexanoate

,

(3R,5R)-tert-butyl 6-chloro-3,5-dihydroxyhexanoate
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C10H19ClO4

Mol W.

: 238.71

Cat No.

: SA12192

3R5S-Atorvastatin-Calcium-salt

,

(3R,5S)-Atorvastatin Calcium salt
$195.00 10 mg
In Stock

CAS No.

: 1312366-79-2

Mol F.

: C33H35FN2O5 : 1/2(Ca)

Mol W.

: 558.7 1/2 (40.1)

Cat No.

: SA17840

SA47409

,

(3R)​-3-​[4-​Amino-​3-​(4-​phenoxyphenyl)​-​1H-​pyrazolo[3,​4-​d]​pyrimidin-​1-​yl]​-1-​piperidinecarboxylic Acid Phenylmethyl Ester
Please enquire for price & pack size
In Stock

CAS No.

: 2012523-59-8

Mol F.

: C30H28N6O3

Mol W.

: 520.58000000000004

Cat No.

: SA47409

3S4R-N-Methyl-Paroxol

,

(3S,4R)-N-Methyl Paroxol
Please enquire for price & pack size
In Stock

CAS No.

: 105812-81-5

Mol F.

: C13H18FNO

Mol W.

: 223.29

Cat No.

: SA18318

SA43326

,

(3S,4S)-1-Benzyl-N,4- dimethylpiperidin-3-amine
Please enquire for price & pack size
In Stock

CAS No.

: 1354486-07-9

Mol F.

: C14H22N2

Mol W.

: 218.34

Cat No.

: SA43326

3S5RE-Tert-butyl-7-2-cyclopropyl-4-4-fluorophenylquinolin-3-yl-35-dihydroxyhept-6-enoate

,

(3S,5R,E)-Tert-butyl 7-(2-cyclopropyl-4-(4-fluorophenyl)quinolin-3-yl)-3,5-dihydroxyhept-6-enoate
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C29H32FNO4

Mol W.

: 477.57

Cat No.

: SA29525

SA17833

,

(3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester
$150.00 25 mg
In Stock

CAS No.

: 186508-94-1

Mol F.

: C₁₁H₁₉NO₄

Mol W.

: 229.27

Cat No.

: SA17833

3S5R-Atorvastatin-Calcium-Salt

,

(3S,5R)-Atorvastatin Calcium Salt
$195.00 10 mg
In Stock

CAS No.

: 887196-25-0 (calcium salt); 887324-52-9 (acid)

Mol F.

: C33H34FN2O5 .1/2 Ca

Mol W.

: 577.67

Cat No.

: SA17827

3S5S-tert-butyl-6-chloro-35-dihydroxyhexanoate

,

(3S,5S)-tert-butyl 6-chloro-3,5-dihydroxyhexanoate
$250.00 25 mg
In Stock

CAS No.

: 325471-28-1

Mol F.

: C10H19ClO4

Mol W.

: 238.71

Cat No.

: SA12191

3S-4-Chloro-3-hydroxybutyronitrile

,

(3S)-4-Chloro-3-hydroxybutyronitrile
$70.00 25 mg
In Stock

CAS No.

: 127913-44-4

Mol F.

: C4H6ClNO

Mol W.

: 119.55

Cat No.

: SA12125

4-bromophenylindolin-7-ylmethanone

,

(4-bromophenyl)(indolin-7-yl)methanone
Please enquire for price & pack size
In Stock

CAS No.

: 91714-41-9

Mol F.

: C15H12BrNO

Mol W.

: 302.16

Cat No.

: SA18917

4-Chlorophenyldiphenylmethanol

,

(4-Chlorophenyl)diphenylmethanol
Please enquire for price & pack size
In Stock

CAS No.

: 6922-89-0

Mol F.

: C19H15ClO

Mol W.

: 294.77

Cat No.

: SA11605

SA17829

,

(4R,6S)-3,5-Dihydroxy-6-cyanohexanoic acid tertbutyl ester
$170.00 25 mg
In Stock

CAS No.

Mol F.

: C11H19NO4

Mol W.

: 229.13

Cat No.

: SA17829

4R6S-56-Dihydro-6-methyl-4H-thieno23-bthiopyran-4-ol-77-Dioxide

,

(4R,6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-ol 7,7-Dioxide
$95.00 25 mg
In Stock

CAS No.

: 147128-77-6

Mol F.

: C8H10O3S2

Mol W.

: 218.29

Cat No.

: SA24108

SA17828

,

(4R,6S)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid tert-Butyl Ester
$220.00 50 mg
In Stock

CAS No.

: 196085-84-4

Mol F.

: C14H23NO4

Mol W.

: 269.34

Cat No.

: SA17828

4R-4-Phenyl-13-oxazolidin-2-one

,

(4R)-4-Phenyl-1,3-oxazolidin-2-one
$80.00 25 mg
In Stock

CAS No.

: 90319-52-1

Mol F.

: C9H9NO2

Mol W.

: 163.17

Cat No.

: SA14842

SA47303

,

(4S)-Brivaracetam
$395.00 25 mg
In Stock

CAS No.

: 357336-19-7

Mol F.

: C11H20N2O2

Mol W.

: 212.3

Cat No.

: SA47303

5-chloromethyl-2-oxo-13-dioxol-4-ylmethyl-1-2-1H-tetrazol-5-ylbiphenyl-4-ylmethyl-4-2-hydroxypropan-2-yl-2-propyl-1H-imidazol

,

(5-(chloromethyl)-2-oxo-1,3-dioxol-4-yl)methyl 1-((2′-(1H-tetrazol-5-yl)biphenyl-4-yl)methyl)-4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carboxylate
$395.00 25 mg
In Stock

CAS No.

: 896419-18-4

Mol F.

: C29H29ClN6O6

Mol W.

: 593.03

Cat No.

: SA17756

5-Bromo-2-chlorophenyl4-ethoxyphenylmethanol

,

(5-Bromo-2-chlorophenyl)(4- ethoxyphenyl)methanol
$225.00 25 mg
In Stock

CAS No.

: 1280647-32-6

Mol F.

: C14H12BrClO2

Mol W.

: 327.6

Cat No.

: SA15044

5-Bromo-2-chlorophenyl4-ethoxyphenylmethanone

,

(5-Bromo-2-chlorophenyl)(4-ethoxyphenyl)methanone
$225.00 25 mg
In Stock

CAS No.

: 461432-22-4

Mol F.

: C15H12BrClO2

Mol W.

: 339.61

Cat No.

: SA15045

5-Bromo-2-chlorophenyl4-fluorophenylmethanone

,

(5-Bromo-2-chlorophenyl)(4-fluorophenyl)methanone
Please enquire for price & pack size
In Stock

CAS No.

: 915095-85-1

Mol F.

: C13H7BrClFO

Mol W.

: 313.55

Cat No.

: SA15139

5-Bromo-2-chlorophenyl4-hydroxyphenylmethanone

,

(5-Bromo-2-chlorophenyl)(4-hydroxyphenyl)methanone
$195.00 25 mg
In Stock

CAS No.

: 1360568-68-8

Mol F.

: C13H8BrClO2

Mol W.

: 332.94

Cat No.

: SA15036

SA17839

,

(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester
$175.00 100 mg
In Stock

CAS No.

: 125988-01-4

Mol F.

: C11H17NO4

Mol W.

: 227.26

Cat No.

: SA17839

SA42314

,

(6R,7R)-7-amino-8-oxo-3-vinyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Please enquire for price & pack size
In Stock

CAS No.

: 79349-82-9

Mol F.

: C9H10N2O3S

Mol W.

: 226.25

Cat No.

: SA42314

E-Betamethasone-∆1720-21-Aldehyde

,

(E)-Betamethasone-∆17,20 21-Aldehyde
$295.00 25 mg
In Stock

CAS No.

: 52647-07-1

Mol F.

: C22H27FO4

Mol W.

: 374.45

Cat No.

: SA14510

N-1-of-3-deshydroxy-ezetimibe-acid

,

(N-1) of 3′-deshydroxy ezetimibe acid
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C25H25F2NO3

Mol W.

: 425.47

Cat No.

: SA14853

N-1-of-Salmeterol-EP-Impurity-C

,

(N-1) of Salmeterol EP Impurity C
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C39H49NO4

Mol W.

: 595.81

Cat No.

: SA10112

RR-Diltiazem

,

(R,R)-Diltiazem
Please enquire for price & pack size
In Stock

CAS No.

: 75472-92-3

Mol F.

: C22H26N2O4S

Mol W.

: 414.5

Cat No.

: SA19532

RR-Efinaconazole-Epoxide

,

(R,R)-Efinaconazole Epoxide
Please enquire for price & pack size
In Stock

CAS No.

: 135270-13-2

Mol F.

: C12H11F2N3O

Mol W.

: 251.23

Cat No.

: SA23608

RR-Efinaconazole-KSM-Protected-Epoxy-Impurity

,

(R,R)-Efinaconazole KSM- Protected Epoxy Impurity
Please enquire for price & pack size
In Stock

CAS No.

: 135267-12-8

Mol F.

: C15H18F2O3

Mol W.

: 284.3

Cat No.

: SA23625

SA47420

,

(R)-1-(3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)-3-chloropropan-1-one
Please enquire for price & pack size
In Stock

CAS No.

: 1288338-96-4

Mol F.

: C25H25ClN6O2

Mol W.

: 476.96

Cat No.

: SA47420

R-1-3-ethoxy-4-methoxyphenyl-2-methylsulfonylethyl-amine

,

(R)-1-(3-ethoxy-4- methoxyphenyl)-2- (methylsulfonyl)ethyl amine
Please enquire for price & pack size
In Stock

CAS No.

: 608142-27-4

Mol F.

: C12H19NO4S

Mol W.

: 273.35

Cat No.

: SA30021

R-1-4-Chlorophenylphenylmethylpiperazine

,

(R)-1-[(4-Chlorophenyl)phenylmethyl]piperazine
Please enquire for price & pack size
In Stock

CAS No.

: 300543-56-0

Mol F.

: C17H19ClN2

Mol W.

: 286.8

Cat No.

: SA13501

SA49910

,

(R)-2-((1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1Hpurin-8-yl)piperidin-3-yl)carbamoy
Please enquire for price & pack size
In Stock

CAS No.

: 2074688-81-4

Mol F.

: C33H32N8O5

Mol W.

: 620.7

Cat No.

: SA49910

R-3-4-5-bromo-2-chlorobenzylphenoxytetrahydrofuran

,

(R)-3-(4-(5-bromo-2-chlorobenzyl)phenoxy)tetrahydrofuran
Please enquire for price & pack size
In Stock

CAS No.

: 915095-90-8

Mol F.

: C17H16BrClO2

Mol W.

: 367.7

Cat No.

: SA15134

SA47411

,

(R)-3-(4-Phenoxyphenyl)-1-(piperidin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
Please enquire for price & pack size
In Stock

CAS No.

: 1022150-12-4

Mol F.

: C22H22N6O

Mol W.

: 386.45

Cat No.

: SA47411

Dapoxetine-R-isomer-impurity

,

(R)-Dapoxetine Hydrochloride
Please enquire for price & pack size
In Stock

CAS No.

: 156453-51-9

Mol F.

: C21H23NOHCl"

Mol W.

: 341.87

Cat No.

: SA23001

R-Didemethyltimolol-Maleate

,

(R)-Didemethyltimolol Maleate
Please enquire for price & pack size
In Stock

CAS No.

: NA

Mol F.

: C15H24N4O7

Mol W.

: 404.44

Cat No.

: SA23214

SA36301

,

(R)-Duloxetine; Duloxetine EP Impurity A
$200.00 25 mg
In Stock

CAS No.

: 116539-60-7(base); 910138-96-4(HCl)

Mol F.

: C18H19NOS

Mol W.

: 297.42

Cat No.

: SA36301

R-Hydroxy-Timolol

,

(R)-Hydroxy Timolol
Please enquire for price & pack size
In Stock

CAS No.

: NA

Mol F.

: C13H24N4O4S

Mol W.

: 332.15

Cat No.

: SA23222

N-Nitroso-N-Demethyl-Desvenlafaxine

,

(R)-N-(2-(1-hydroxycyclohexyl)-2-(4-hydroxyphenyl)ethyl)-N-methylnitrous amide
Please enquire for price & pack size
In Stock

CAS No.

Mol F.

: C15H22N2O3

Mol W.

: 278.35

Cat No.

: SA22742

R-N-24-Difluorobenzyl-9-hydroxy-2-4-hydroxybutan-2-yl-18-dioxo-2348-tetrahydro-1H-pyrido12-apyrazine-7-carboxamide

,

(R)-N-(2,4-Difluorobenzyl)-9-hydroxy-2-(4-hydroxybutan-2-yl)-1,8-dioxo-2,3,4,8-tetrahydro-1H-pyrido[1,2-a]pyrazine-7-carboxamide
Please enquire for price & pack size
In Stock

CAS No.

: NA

Mol F.

: C20H19F2N3O5

Mol W.

: 419.38

Cat No.

: SA20218

R-Pregabalin

,

(R)-Pregabalin
$125.00 25 mg
In Stock

CAS No.

: 148553-51-9

Mol F.

: C8H17NO2

Mol W.

: 159.23

Cat No.

: SA24802

SynThink Research Chemicals

Vector (7) Social Icons Social Icons (1)

Quick Links

Home

Products

Overview

Our Team

BLOG

Career

Contact Us

Products

Impurities

Featured Products

Intermediates

Building Blocks

Medchem Compound

Services

Analytical Services

Custom Synthesis

Facilities

Support

Terms and Conditions

Privacy Policy

Contact Info

Address

Plot No. CP-135, Pimpri-Chinhwad MIDC, Pune-411019, Maharashtra, India.

Products / Services

Domestic

Chat on WhatsApp

International

Chat on WhatsApp

© 2014-2024 SynThink Research Chemicals. All Rights Reserved.

SynThink ISO Certificate Other Services
Registration

Register to add the product to RFQ list

Already have an account?