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Impurities, Pregabalin

4-Bromomethylpyrrolidin-2-one

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CAS No.

: 975671-51-3

Mol F.

: C5H8BrNO

Mol W.

: 178.03

Cat No.

: SA24826

Impurities, Leflunomide

4-Chloro benzotrifluoride | CAS NO : 98-56-6

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CAS No.

: 98-56-6

Mol F.

: C7H4ClF3

Mol W.

: 180.6

Cat No.

: SA21819

Apixaban, Impurities

4-Chloro pentanoyl chloride

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CAS No.

: 63480-12-6

Mol F.

: C5H8Cl2O

Mol W.

: 155.02

Cat No.

: SA39958

Impurities, Prochlorperazine Maleate

4-Chloro-10H-phenothiazine; 4-Chlorophenothiazine

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CAS No.

: 7369-69-9

Mol F.

: C12H8ClNS

Mol W.

: 233.72

Cat No.

: SA45604

Impurities, Omeprazole

4-Chloro-2-(chloromethyl)-3,5-dimethylpyridine

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CAS No.

: 142885-96-9

Mol F.

: C8H9Cl2N

Mol W.

: 190.07

Cat No.

: SA19405

Intermediates

4-Chloro-2-(trifluoroacetyl)aniline hydrochloride

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CAS No.

: 173676-59-0

Mol F.

: C8H5NOF3Cl.HCl.H2O

Mol W.

: 278.99

Cat No.

: SRC900037

Buildling Blocks

4-chloro-2-iodoaniline

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CAS No.

: 63069-48-7

Mol F.

: C6H6ClN

Mol W.

: 253.47

Cat No.

: SB10412

Allopurinol, Impurities

4-Chloro-2,6-dimethoxypyrimidine-5-carbaldehyde

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CAS No.

: 134221-52-6

Mol F.

: C7H7ClN2O3

Mol W.

: 202.59

Cat No.

: SA28913

Dapagliflozin, Impurities

4-Chloro-3-(4-ethoxybenzyl)phenol

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CAS No.

: 1408077-50-8

Mol F.

: C15H15ClO2

Mol W.

: 262.73

Cat No.

: SA15051

Impurities, Nintedanib

4-Chloro-3-nitrobenzoic acid methyl ester

$85.00 25 mg

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CAS No.

: 14719-83-6

Mol F.

: C8H6ClNO4

Mol W.

: 215.59

Cat No.

: SA22516

Erlotinib, Impurities

4-Chloro-6-(2-chloroethoxy)-7-(2-methoxyethoxy)quinazoline

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CAS No.

: 183322-19-2

Mol F.

: C13H14Cl2N2O3

Mol W.

: 317.16

Cat No.

: SA25221

Impurities, Lorcaserin

4-Chloro-N-(2-hydroxypropyl)benzeneacetamide

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CAS No.

: 1030624-36-2

Mol F.

: C11H14ClNO2

Mol W.

: 227.69

Cat No.

: SA18810

Impurities, Sumatriptan

4-Chlorobutyraldehyde Diethyl Acetal

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CAS No.

: 6139-83-9

Mol F.

: C8H17ClO2

Mol W.

: 180.67

Cat No.

: SA34817

Impurities, Nizatidine

4-Chloromethyl-2-Dimethylamino methyl thiazole

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CAS No.

: 82586-71-8

Mol F.

: C7H11ClN2S

Mol W.

: 190.7

Cat No.

: SA34414

Intermediates

4-Chloromethyl-5-methyl-1,3-dioxol-2-one

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CAS No.

: 80841-78-7

Mol F.

: C5H5ClO3

Mol W.

: 148.54

Cat No.

: SRC900077

Impurities, Olmesartan Medoxomil

4-Chloromethyl-5-Methyl-1,3-dioxol-2-one

$125.00 25 mg

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CAS No.

: 80841-78-7

Mol F.

: C5H5ClO3

Mol W.

: 148.54

Cat No.

: SA17729

Intermediates

4-Chloromethyl-5-methyl–1,3-dioxol-2-one

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CAS No.

: 80841-78-7

Mol F.

: C5H5ClO3

Mol W.

: 148.54

Cat No.

: SRC900028

Clotrimazole, Impurities

4-Chlorotrityl chloride

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CAS No.

: 27023-37-6

Mol F.

: C19H14Cl2

Mol W.

: 313.22

Cat No.

: SA11607

Impurities, Raltegravir

4-Defluoro 4-Methoxy Raltegravir

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CAS No.

Mol F.

: C21H24N6O6

Mol W.

: 456.45

Cat No.

: SA25608

Impurities, Trimethoprim

4-Demethyltrimethoprim

$95.00 25 mg

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CAS No.

: 21253-58-7

Mol F.

: C13H16N4O3

Mol W.

: 276.29

Cat No.

: SA27112

Efinaconazole, Impurities

4-desfluoro 4 (1,2,4-triazol) (R,S)-Efinaconazole Epoxide

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CAS No.

: NA

Mol F.

: C14H13FN6O

Mol W.

: 300.29000000000002

Cat No.

: SA23600

Efinaconazole, Impurities

4-Desmethylene-4-hydroxymethyl-efinaconazole

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CAS No.

: NA

Mol F.

: C18H24F2N4O2

Mol W.

: 366.41

Cat No.

: SA23606

Brimonidine, Impurities

4-Dimethylaminopyridine; Brimonidine Dimethyl Amino Pyridine

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CAS No.

: 1122-58-3

Mol F.

: C7H10N2

Mol W.

: 122.17

Cat No.

: SA20727

Impurities, Osimertinib

4-Fluoro-2-methoxy-5-nitroaniline

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CAS No.

: 1075705-01-9

Mol F.

: C7H7FN2O3

Mol W.

: 186.14

Cat No.

: SA44701

Impurities, Paroxetine

4-Fluoro-4’-formylbiphenyl

$100.00 25 mg

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CAS No.

: 60992-98-5

Mol F.

: C₁₃H₉FO

Mol W.

: 200.21

Cat No.

: SA18315

Intermediates

4-Fluorophenyl-5’-oxobutyric Acid

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CAS No.

: 149437-76-3

Mol F.

: C11H11FO3

Mol W.

: 210.2

Cat No.

: SRC900070

Cariprazine, Impurities

4-Hydroxy 2,3-Dichlorophenyl Cariprazine

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CAS No.

: 1084891-95-1

Mol F.

: C21H32Cl2N4O2

Mol W.

: 443.41

Cat No.

: SA39708

Impurities, Raloxifene

4-Hydroxy benzothiophene Raloxifene

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CAS No.

: 185416-01-7

Mol F.

: C28H27NO4S

Mol W.

: 473.58

Cat No.

: SA24912

Darunavir, Impurities

4-Hydroxy Darunavir

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CAS No.

: 313682-97-2

Mol F.

: C27H37N3O8S

Mol W.

: 563.66

Cat No.

: SA39407

Donepezil, Impurities

4-Hydroxy Donepezil Impurity

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CAS No.

: 197010-22-3

Mol F.

: C24H29NO4

Mol W.

: 395.49

Cat No.

: SA34317

Erlotinib, Impurities

4-Hydroxy Erlotinib

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CAS No.

: 882420-22-6

Mol F.

: C22H23N3O5

Mol W.

: 409.44

Cat No.

: SA25201

Ethinylestradiol, Impurities

4-Hydroxy Ethinylestradiol

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CAS No.

: 50394-90-6

Mol F.

: C20H24O3

Mol W.

: 312.4

Cat No.

: SA13126

Fingolimod, Impurities

4-Hydroxy Fingolimod Impurity

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CAS No.

: 268557-51-3(HCl);162361-49-1(Base)

Mol F.

: C19H34ClNO3

Mol W.

: 359.93

Cat No.

: SA34504

Ibrutinib, Impurities

4-Hydroxy Ibrutinib

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CAS No.

: 1288339-18-3

Mol F.

: C25H24N6O3

Mol W.

: 456.5

Cat No.

: SA47412

Impurities, Trimetazidine

4-Hydroxy Trimetazidine Impurity

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CAS No.

Mol F.

: C13H20N2O3

Mol W.

: 252.31

Cat No.

: SA35111

Impurities, Trimethoprim

4-Hydroxy Trimethoprim

$495.00 25 mg

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CAS No.

: 112678-48-5

Mol F.

: C14H18N4O4

Mol W.

: 306.32

Cat No.

: SA27114

Impurities, Valsartan

4-Hydroxy Valsartan

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CAS No.

: 188259-69-0

Mol F.

: C24H29N5O4

Mol W.

: 451.52

Cat No.

: SA33305

Allopurinol, Impurities

4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine

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CAS No.

: 21314-17-0

Mol F.

: C11H8N4O

Mol W.

: 212.21

Cat No.

: SA28915

Impurities, Trimetazidine

4-hydroxy-2,3-dimethoxybenzaldehyde

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CAS No.

: 69471-05-2

Mol F.

: C9H10O4

Mol W.

: 182.17

Cat No.

: SA35110

Impurities, Leflunomide

4-Hydroxy-Teriflunomide

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CAS No.

: 1058722-45-4

Mol F.

: C12H9F3N2O3

Mol W.

: 286.20999999999998

Cat No.

: SA21813

Clomifene, Impurities

4-Hydroxy-α,β-diphenylbenzeneethanol

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CAS No.

: 94549-25-4

Mol F.

: C20H18O2

Mol W.

: 290.35

Cat No.

: SA21711

Intermediates

4-Hydroxybenzophenone

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CAS No.

: 1137-42-4

Mol F.

: C13H10O2

Mol W.

: 198.22

Cat No.

: SRC900114

Buildling Blocks

4-Hydroxycyclopent-2-enone

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CAS No.

: 61305-27-9

Mol F.

: C5H6O2

Mol W.

: 98.1

Cat No.

: SB10601

Efinaconazole, Impurities

4-Hydroxymethyl-1-benzoyl Piperidine

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CAS No.

: 19980-00-8

Mol F.

: C13H17NO2

Mol W.

: 219.58

Cat No.

: SA23613

Impurities, Rilpivirine

4-Iodo-2,6-bis(methoxymethyl)aniline

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CAS No.

: NA

Mol F.

: C10H14INO2

Mol W.

: 307.13

Cat No.

: SA25405

Impurities, Omeprazole

4-Methoxy-2-nitroaniline

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CAS No.

: 96-96-8

Mol F.

: C7H8N2O3

Mol W.

: 168.15

Cat No.

: SA19401

Intermediates

4-Methoxybutanoic acid

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CAS No.

: 29006-02-8

Mol F.

: C5H10O3

Mol W.

: 118.13

Cat No.

: SRC900089

Impurities, Ranolazine

4-Methoxyphenol

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CAS No.

: 150-76-5

Mol F.

: C7H8O2

Mol W.

: 124.14

Cat No.

: SA26810

Apixaban, Impurities

4-Methoxyphenylhydrazine Hydrochloride

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CAS No.

: 19501-58-7

Mol F.

: C7H10N2O·HCl

Mol W.

: 174.63

Cat No.

: SA39927

Apixaban, Impurities

4-Methyl-5-chlorovaleroyl Chloride

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CAS No.

: 813452-05-0

Mol F.

: C6H10Cl2O

Mol W.

: 169.05

Cat No.

: SA39956