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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.

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Gestodene, Impurities

Gestodene EP Impurity I

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Out of Stock

CAS No.

: NA

Mol F.

: C‚‚Hƒ€Oƒ

Mol W.

: 342.47

Cat No.

: SA38209

Gestodene, Impurities

Gestodene EP Impurity J

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Out of Stock

CAS No.

: 104933-99-5

Mol F.

: C23H30O3

Mol W.

: 354.48

Cat No.

: SA38210

Gestodene, Impurities

Gestodene EP Impurity K

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Out of Stock

CAS No.

: 1421283-61-5

Mol F.

: C21H22O3

Mol W.

: 322.4

Cat No.

: SA38211

Gestodene, Impurities

Gestodene EP Impurity L

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C21H26O2

Mol W.

: 310.43

Cat No.

: SA38212

Gilteritinib, Impurities

Gilteritinib Amino Piperidine Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1254058-34-8

Mol F.

: C17H28N4O

Mol W.

: 304.43

Cat No.

: SA50504

Gilteritinib, Impurities

Gilteritinib Desmethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1373410-40-2

Mol F.

: C28H42N8O3

Mol W.

: 538.68

Cat No.

: SA50503

Gilteritinib, Impurities

Gilteritinib N-Methyl N-Oxide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C29H44N8O4

Mol W.

: 568.71

Cat No.

: SA50502

Gilteritinib, Impurities

Gilteritinib N-Oxide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C29H44N8O4

Mol W.

: 568.71

Cat No.

: SA50501

Glipizide, Impurities

Glipizide

Please enquire for price & pack size

Out of Stock

CAS No.

: 29094-61-9

Mol F.

: C‚H‚‡N…O„S

Mol W.

: 445.54

Cat No.

: SA38600

Glyburide, Impurities

Glyburide

Please enquire for price & pack size

Out of Stock

CAS No.

: 10238-21-8

Mol F.

: C23H28ClN3O5S

Mol W.

: 494

Cat No.

: SA12300

Glyburide, Impurities

Glyburide USP Related Compound B

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Out of Stock

CAS No.

: 21165-77-5

Mol F.

: C₁₈H₁₉ClN₂O₆S

Mol W.

: 426.87

Cat No.

: SA12304

Impurities, Losartan

Glycine Methyl Ester Hydrochloride

Please enquire for price & pack size

Out of Stock

CAS No.

: 5680-79-5

Mol F.

: C3H8ClNO2

Mol W.

: 125.55

Cat No.

: SA26717

Glycopyrrolate, Impurities

Glycopyrrolate Bromide

Please enquire for price & pack size

Out of Stock

CAS No.

: 51186-83-5

Mol F.

: C19H28BrNO3

Mol W.

: 398.33

Cat No.

: SA41900

Glycopyrrolate, Impurities

Glycopyrrolate Dehydro Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C19H26BrNO3

Mol W.

: 396.32

Cat No.

: SA41914

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 611-73-4

Mol F.

: C8H6O3

Mol W.

: 150.13

Cat No.

: SA41901

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 90-64-2

Mol F.

: C8H8O3

Mol W.

: 152.15

Cat No.

: SA41902

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 65-85-0

Mol F.

: C7H6O2

Mol W.

: 122.12

Cat No.

: SA41903

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity F

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Out of Stock

CAS No.

: 100-52-7

Mol F.

: C7H6O

Mol W.

: 106.12

Cat No.

: SA41904

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity G

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Out of Stock

CAS No.

: 13118-11-1

Mol F.

: C18H25NO3

Mol W.

: 303.39999999999998

Cat No.

: SA41905

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 15206-55-0

Mol F.

: C9H8O3

Mol W.

: 164.16

Cat No.

: SA41906

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity I

Please enquire for price & pack size

Out of Stock

CAS No.

: 1404453-68-4

Mol F.

: C19H27BrClNO3

Mol W.

: 432.78

Cat No.

: SA41907

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity J

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Out of Stock

CAS No.

: 427-49-6

Mol F.

: C13H16O3

Mol W.

: 220.26

Cat No.

: SA41908

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity K

Please enquire for price & pack size

Out of Stock

CAS No.

: 3900-93-4

Mol F.

: C13H16O2

Mol W.

: 204.26

Cat No.

: SA41909

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity L

Please enquire for price & pack size

Out of Stock

CAS No.

: 19833-96-6

Mol F.

: C14H18O3

Mol W.

: 234.29

Cat No.

: SA41910

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity M

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Out of Stock

CAS No.

: 5422-88-8

Mol F.

: C12H14O

Mol W.

: 174.24

Cat No.

: SA41911

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity N

Please enquire for price & pack size

Out of Stock

CAS No.

: 58493-54-2

Mol F.

: C19H28BrNO3

Mol W.

: 398.33

Cat No.

: SA41912

Glycopyrrolate, Impurities

Glycopyrrolate EP Impurity O

Please enquire for price & pack size

Out of Stock

CAS No.

: 618-88-2

Mol F.

: C8H5NO6

Mol W.

: 211.13

Cat No.

: SA41913

Glycopyrrolate, Impurities

Glycopyrrolate USP Releted Compound L

Please enquire for price & pack size

Out of Stock

CAS No.

: 19833-96-6

Mol F.

: C14H18O3

Mol W.

: 234.29

Cat No.

: SA41915

Guanine, Impurities

Guanine

Please enquire for price & pack size

Out of Stock

CAS No.

: 73-40-5

Mol F.

: C₅H₅N₅O

Mol W.

: 151.13

Cat No.

: SA32100

Halcinonide, Impurities

Halcinonide

Please enquire for price & pack size

Out of Stock

CAS No.

: 3093-35-4

Mol F.

: C₂₄H₃₂ClFO₅

Mol W.

: 454.96

Cat No.

: SA30400

Halcinonide, Impurities

Halcinonide ether dimer

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C48H64F2O11

Mol W.

: 855.01

Cat No.

: SA30418

Diflorasone Acetate, Impurities

Halobetasol

Please enquire for price & pack size

Out of Stock

CAS No.

: 98651-66-2

Mol F.

: C22H27ClF2O4

Mol W.

: 428.9

Cat No.

: SA44406

Diflorasone Acetate, Impurities

Halobetasol Propionate EP impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 66852-61-7

Mol F.

: C25H31Cl2FO5

Mol W.

: 501.4

Cat No.

: SA44405

Diflorasone Acetate, Impurities

Halobetasol Propionate Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 79861-38-4

Mol F.

: C27H34F2O7

Mol W.

: 508.55

Cat No.

: SA44408

Diflorasone Acetate, Impurities

Halobetasol Propionate Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 181527-42-4

Mol F.

: C25H31ClF2O5

Mol W.

: 484.96

Cat No.

: SA44407

Hydrochlorothiazide, Impurities

Hydrochlorothiazide

Please enquire for price & pack size

Out of Stock

CAS No.

: 58-93-5

Mol F.

: C₇H₈ClN₃O₄S₂

Mol W.

: 297.74

Cat No.

: SA11200

Hydrochlorothiazide, Impurities

Hydrochlorothiazide EP Impurity C

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Out of Stock

CAS No.

: 402824-96-8

Mol F.

: C₁₅H₁₆Cl₂N₆O₈S₄

Mol W.

: 607.49

Cat No.

: SA11202

Hydrocortisone, Impurities

Hydrocortisone

Please enquire for price & pack size

Out of Stock

CAS No.

: 50-23-7

Mol F.

: C21H30O5

Mol W.

: 362.46

Cat No.

: SA15200

Hydrocortisone, Impurities

Hydrocortisone 21-Propionate

Please enquire for price & pack size

Out of Stock

CAS No.

: 6677-98-1

Mol F.

: C₂₄H₃₄O₆

Mol W.

: 418.52

Cat No.

: SA15218

Hydrocortisone, Impurities

Hydrocortisone EP Impurity A

$75.00 25 mg

Out of Stock

CAS No.

: 50-24-8

Mol F.

: C21H28O5

Mol W.

: 360.44

Cat No.

: SA15202

Hydrocortisone Valerate, Impurities

Hydrocortisone Ortho Valerate

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C27H40O6

Mol W.

: 460.6

Cat No.

: SA27315

Aciclovir, Impurities

Hydroxy Aciclovir

Please enquire for price & pack size

Out of Stock

CAS No.

: 82410-32-0

Mol F.

: C9H13N5O4

Mol W.

: 255.23

Cat No.

: SA21424

Carisoprodol, Impurities

Hydroxy Carisoprodol

Please enquire for price & pack size

Out of Stock

CAS No.

: 3424-34-8

Mol F.

: C₁₂H₂₄N₂O₅

Mol W.

: 276.33

Cat No.

: SA25306

Glyburide, Impurities

Hydroxy Glyburide

Please enquire for price & pack size

Out of Stock

CAS No.

: 204838-24-4

Mol F.

: C₂₃H₂₈ClN₃O₆S

Mol W.

: 510

Cat No.

: SA12305

Donepezil, Impurities

Hydroxy Keto Donepezil Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 197010-20-1

Mol F.

: C₂₄H₂₉NO₄

Mol W.

: 395.49

Cat No.

: SA34309

Celecoxib, Impurities

Hydroxy Methyl Celecoxib

Please enquire for price & pack size

Out of Stock

CAS No.

: 170571-00-3

Mol F.

: C₁₇H₁₄F₃N₃O₃S

Mol W.

: 397.37

Cat No.

: SA11311

Apixaban, Impurities

Hydroxy O-Demethyl Apixaban Sulfate

Please enquire for price & pack size

Out of Stock

CAS No.

: 2203515-00-6

Mol F.

: C24H23N5O8S

Mol W.

: 541.53

Cat No.

: SA39921

Impurities, Terbinafine

Hydroxy Terbinafine

Please enquire for price & pack size

Out of Stock

CAS No.

: 162227-13-6

Mol F.

: C21H25NO

Mol W.

: 307.43

Cat No.

: SA25710

Impurities, Terbinafine

Hydroxy Terbinafine Benzoate

Please enquire for price & pack size

Out of Stock

CAS No.

: 1076198-30-5

Mol F.

: C28H29NO2

Mol W.

: 411.54

Cat No.

: SA25711

Hydroxyzine, Impurities

Hydroxyzine

Please enquire for price & pack size

Out of Stock

CAS No.

: 68-88-2;2192-20-3(HClsalt)

Mol F.

: C21H27ClN2O2

Mol W.

: 374.9

Cat No.

: SA33800