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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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Impurities, Salmeterol

Salmeterol EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 1391052-04-2

Mol F.

: C₃₄H₄₇NO₇

Mol W.

: 581.76

Cat No.

: SA10106

Impurities, Salmeterol

Salmeterol EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 1391051-88-9

Mol F.

: C50H72N2O7

Mol W.

: 813.12

Cat No.

: SA10107

Impurities, Salmeterol

Salmeterol EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 1330076-52-2

Mol F.

: C36H43NO6

Mol W.

: 585.73

Cat No.

: SA10108

Impurities, Salmeterol

Salmeterol Hydroxynaphthoic Acid Impurity (USP)

Please enquire for price & pack size

Out of Stock

CAS No.

: 86-48-6

Mol F.

: C₁₁H₈O₃

Mol W.

: 188.18

Cat No.

: SA10109

Impurities, Sapropterin

Sapropterin Dihydrochloride

Please enquire for price & pack size

Out of Stock

CAS No.

: 69056-38-8

Mol F.

: C9H15N5O3·2HCl

Mol W.

: 314.17

Cat No.

: SA45208

Impurities, Sapropterin

Sapropterin Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 5752-25-0

Mol F.

: C6H911Cl2N5O

Mol W.

: 240.09

Cat No.

: SA45201

Impurities, Sapropterin

Sapropterin Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 6779-87-9

Mol F.

: C9H13N5O3

Mol W.

: 239.23

Cat No.

: SA45206

Impurities, Sapropterin

Sapropterin Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 22150-76-1

Mol F.

: C9H11N5O3

Mol W.

: 237.22

Cat No.

: SA45205

Impurities, Sapropterin

Sapropterin Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 2236-60-4

Mol F.

: C6H5N5O

Mol W.

: 163.13999999999999

Cat No.

: SA45202

Impurities, Sapropterin

Sapropterin Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 35011-47-3

Mol F.

: C4H9N5O5S

Mol W.

: 239.21

Cat No.

: SA45204

Impurities, Sapropterin

Sapropterin Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 62933-57-7

Mol F.

: C13H15N5O5

Mol W.

: 321.29

Cat No.

: SA45203

Impurities, Sapropterin

Sapropterin Impurity H

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Out of Stock

CAS No.

: 69056-39-9

Mol F.

: C9H17Cl2N5O3

Mol W.

: 314.17

Cat No.

: SA45207

Impurities, Saxagliptin

Saxagliptin

Please enquire for price & pack size

Out of Stock

CAS No.

: 361442-04-8

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27410

Impurities, Saxagliptin

Saxagliptin Amide Dimer

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C36H49N5O5

Mol W.

: 631.79999999999995

Cat No.

: SA27407

Impurities, Saxagliptin

Saxagliptin Di-Amide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1496712-39-0

Mol F.

: C18H27N3O3

Mol W.

: 333.42

Cat No.

: SA27409

Impurities, Saxagliptin

Saxagliptin Dione Impurity; Saxagliptin Lactam Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1350800-77-9

Mol F.

: C18H24N2O3

Mol W.

: 316.39

Cat No.

: SA27404

Impurities, Saxagliptin

Saxagliptin keto Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C18H23N3O2

Mol W.

: 313.39

Cat No.

: SA27420

Impurities, Saxagliptin

Saxagliptin N-Formyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C19H25N3O3

Mol W.

: 343.42

Cat No.

: SA27403

Impurities, Saxagliptin

Saxagliptin RRRR Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564265-95-7

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27414

Impurities, Saxagliptin

Saxagliptin RRRS Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564265-94-6

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27415

Impurities, Saxagliptin

Saxagliptin RSRR Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564265-98-0

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27416

Impurities, Saxagliptin

Saxagliptin RSRS Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564265-96-8

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27417

Impurities, Saxagliptin

Saxagliptin SRSR Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564266-03-0

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27413

Impurities, Saxagliptin

Saxagliptin SRSS Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564266-00-7

Mol F.

: C18H25N3O2

Mol W.

: 315.41

Cat No.

: SA27412

Impurities, Saxagliptin

Saxagliptin SSSR Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1564265-93-5

Mol F.

: C18H25N3O2

Mol W.

: 315.41000000000003

Cat No.

: SA27411

Impurities, Tiotropium

Scopine Methiodide

$450.00 25 mg

Out of Stock

CAS No.

: 21662-36-2

Mol F.

: C9H16INO2

Mol W.

: 297.13

Cat No.

: SA11723

Impurities, Sertraline

Sertraline

Please enquire for price & pack size

Out of Stock

CAS No.

: 79617-96-2(Base);79559-97-0(HCl)

Mol F.

: C17H17Cl2N

Mol W.

: 306.23

Cat No.

: SA36500

Impurities, Sertraline

Sertraline 2,3-Dichloro Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1198084-29-5

Mol F.

: C17H17Cl2N

Mol W.

: 306.23

Cat No.

: SA36510

Impurities, Sertraline

Sertraline 2,3-Dichloro Tetralone

Please enquire for price & pack size

Out of Stock

CAS No.

: 152448-80-1

Mol F.

: C16H12Cl2O

Mol W.

: 291.17

Cat No.

: SA36512

Impurities, Sertraline

Sertraline 2,3-Dichloro Tetralone Methanamine

Please enquire for price & pack size

Out of Stock

CAS No.

: 340830-05-9

Mol F.

: C17H15Cl2N

Mol W.

: 304.20999999999998

Cat No.

: SA36513

Impurities, Sertraline

Sertraline 3-Deschloro Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 79646-00-7

Mol F.

: C17H18ClN

Mol W.

: 271.77999999999997

Cat No.

: SA36511

Impurities, Sertraline

Sertraline Dideschloro Tetralone Methanamine

Please enquire for price & pack size

Out of Stock

CAS No.

: 52789-19-2

Mol F.

: C17H17N

Mol W.

: 235.32

Cat No.

: SA36514

Impurities, Sertraline

Sertraline Dimethylamino Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 107508-17-8(base);79836-76-3(HClsalt)

Mol F.

: C18H19Cl2N

Mol W.

: 320.25

Cat No.

: SA36515

Impurities, Sertraline

Sertraline EP Impurity A; rac-trans-Sertraline

Please enquire for price & pack size

Out of Stock

CAS No.

: 79836-45-6(base);79617-99-5(HCl)

Mol F.

: C17H17Cl2N

Mol W.

: 306.23

Cat No.

: SA36501

Impurities, Sertraline

Sertraline EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C17H19N

Mol W.

: 237.34

Cat No.

: SA36502

Impurities, Sertraline

Sertraline EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C17H18ClN

Mol W.

: 271.77999999999997

Cat No.

: SA36503

Impurities, Sertraline

Sertraline EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C17H18ClN

Mol W.

: 271.77999999999997

Cat No.

: SA36504

Impurities, Sertraline

Sertraline EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 611-71-2

Mol F.

: C8H8O3

Mol W.

: 152.15

Cat No.

: SA36505

Impurities, Sertraline

Sertraline EP Impurity F; R-Sertralone

Please enquire for price & pack size

Out of Stock

CAS No.

: 155748-61-1

Mol F.

: C16H12Cl2O

Mol W.

: 291.17

Cat No.

: SA36506

Impurities, Sertraline

Sertraline EP Impurity G; (R,R) Sertraline

Please enquire for price & pack size

Out of Stock

CAS No.

: 79617-89-3;79617-95-1(FreeBase)

Mol F.

: C17H17Cl2N

Mol W.

: 306.23

Cat No.

: SA36507

Impurities, Sertraline

Sertraline N-Desmethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 91797-57-8(cis-rac.)

Mol F.

: C16H15Cl2N

Mol W.

: 292.2

Cat No.

: SA36509

Impurities, Sertraline

Sertraline Tetralone (S)-Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 124379-29-9

Mol F.

: C16H12Cl2O

Mol W.

: 291.17

Cat No.

: SA36508

Impurities, Sertraline

Sertraline Tetralone Methanamine

Please enquire for price & pack size

Out of Stock

CAS No.

: 79560-20-6

Mol F.

: C17H15Cl2N

Mol W.

: 304.20999999999998

Cat No.

: SA36516

Impurities, Simvastatin

Simvastatin

Please enquire for price & pack size

Out of Stock

CAS No.

: 79902-63-9

Mol F.

: C25H38O5

Mol W.

: 418.57

Cat No.

: SA32400

Impurities, Simvastatin

Simvastatin 6-Oxo Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 130468-11-0

Mol F.

: C25H36O6

Mol W.

: 432.55

Cat No.

: SA32414

Impurities, Simvastatin

Simvastatin Acid Methyl Ester

Please enquire for price & pack size

Out of Stock

CAS No.

: 145576-26-7

Mol F.

: C26H42O6

Mol W.

: 450.61

Cat No.

: SA32415

Impurities, Simvastatin

Simvastatin beta-Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 126313-98-2

Mol F.

: C25H38O6

Mol W.

: 434.57

Cat No.

: SA32416

Impurities, Simvastatin

Simvastatin Dihydro Diol Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 159143-77-8

Mol F.

: C25H40O7

Mol W.

: 452.58

Cat No.

: SA32417

Impurities, Simvastatin

Simvastatin EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 101314-97-0

Mol F.

: C25H39NaO6

Mol W.

: 458.56

Cat No.

: SA32401

Impurities, Simvastatin

Simvastatin EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 145576-25-6

Mol F.

: C27H40O6

Mol W.

: 460.6

Cat No.

: SA32402