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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, Raloxifene

Raloxifene Dimer

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Out of Stock

CAS No.

: 618902-12-8

Mol F.

: C56H52N2O8S2

Mol W.

: 945.15

Cat No.

: SA24905

Impurities, Raltegravir

Raltegravir (E/Z Mixture)-ethoxyacethydrazone

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C22H27FN6O6

Mol W.

: 490.48

Cat No.

: SA25618

Impurities, Raltegravir

Raltegravir EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 518048-03-8

Mol F.

: C16H19FN4O3

Mol W.

: 334.35

Cat No.

: SA25600

Impurities, Raltegravir

Raltegravir EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 1193687-85-2

Mol F.

: C19H24FN5O3

Mol W.

: 389.42

Cat No.

: SA25601

Impurities, Raltegravir

Raltegravir EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 1391918-17-4

Mol F.

: C20H23FN6O6

Mol W.

: 462.44

Cat No.

: SA25602

Impurities, Raltegravir

Raltegravir EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 1064706-98-4

Mol F.

: C18H19FN4O6

Mol W.

: 406.37

Cat No.

: SA25603

Impurities, Raltegravir

Raltegravir EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 1193687-87-4

Mol F.

: C20H22N6O5

Mol W.

: 426.43

Cat No.

: SA25604

Impurities, Raltegravir

Raltegravir EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 2138805-56-6(Z/E)

Mol F.

: C22H27FN6O6

Mol W.

: 490.48

Cat No.

: SA25605

Impurities, Raltegravir

Raltegravir EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C22H27FN6O6

Mol W.

: 490.48

Cat No.

: SA25606

Impurities, Raltegravir

Raltegravir EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 1391918-18-5

Mol F.

: C34H36F2N8O8

Mol W.

: 722.69

Cat No.

: SA25607

Impurities, Raltegravir

Raltegravir Impurity SA25612

Please enquire for price & pack size

Out of Stock

CAS No.

: 1159977-42-0

Mol F.

: C18H21N3O6

Mol W.

: 375.38

Cat No.

: SA25612

Impurities, Raltegravir

Raltegravir Impurity SA25614

Please enquire for price & pack size

Out of Stock

CAS No.

: 519032-08-7

Mol F.

: C17H19N3O6

Mol W.

: 361.35

Cat No.

: SA25614

Impurities, Raltegravir

Raltegravir Impurity SA25615

Please enquire for price & pack size

Out of Stock

CAS No.

: 888504-27-6

Mol F.

: C18H21N3O6

Mol W.

: 375.38

Cat No.

: SA25615

Impurities, Raltegravir

Raltegravir Impurity SA25617

Please enquire for price & pack size

Out of Stock

CAS No.

: 1172131-64-4

Mol F.

: C21H27FN4O4

Mol W.

: 418.46

Cat No.

: SA25617

Impurities, Ramipril

Ramipril

Please enquire for price & pack size

Out of Stock

CAS No.

: 87333-19-5

Mol F.

: C23H32N2O5

Mol W.

: 416.51

Cat No.

: SA31300

Impurities, Ramipril

Ramipril Bicyclic Acid

Please enquire for price & pack size

Out of Stock

CAS No.

: 80875-98-5

Mol F.

: C8H13NO2

Mol W.

: 155.19

Cat No.

: SA31316

Impurities, Ramipril

Ramipril Bicyclic Acid Benzyl Ester (HCl Salt)

Please enquire for price & pack size

Out of Stock

CAS No.

: 87269-87-2

Mol F.

: C15H20ClNO2

Mol W.

: 281.78

Cat No.

: SA31317

Impurities, Ramipril

Ramipril EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 108313-11-7

Mol F.

: C22H30N2O5

Mol W.

: 402.48

Cat No.

: SA31301

Impurities, Ramipril

Ramipril EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 295328-72-2

Mol F.

: C24H34N2O5

Mol W.

: 430.54

Cat No.

: SA31302

Impurities, Ramipril

Ramipril EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 99742-35-5

Mol F.

: C23H39ClN2O5

Mol W.

: 459.02

Cat No.

: SA31303

Impurities, Ramipril

Ramipril EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 108731-95-9

Mol F.

: C23H30N2O4

Mol W.

: 398.5

Cat No.

: SA31304

Impurities, Ramipril

Ramipril EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: 87269-97-4

Mol F.

: C21H28N2O5

Mol W.

: 388.46

Cat No.

: SA31305

Impurities, Ramipril

Ramipril EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: 82717-96-2

Mol F.

: C15H21NO4

Mol W.

: 279.33

Cat No.

: SA31306

Impurities, Ramipril

Ramipril EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 108-88-3

Mol F.

: C₇H₈

Mol W.

: 92.14

Cat No.

: SA31307

Impurities, Ramipril

Ramipril EP Impurity H

Please enquire for price & pack size

Out of Stock

CAS No.

: 104195-90-6

Mol F.

: C23H32N2O5

Mol W.

: 416.51

Cat No.

: SA31308

Impurities, Ramipril

Ramipril EP Impurity I

Please enquire for price & pack size

Out of Stock

CAS No.

: 129939-65-7

Mol F.

: C23H32N2O5

Mol W.

: 416.51

Cat No.

: SA31309

Impurities, Ramipril

Ramipril EP Impurity J

Please enquire for price & pack size

Out of Stock

CAS No.

: 1246253-05-3

Mol F.

: C23H32N2O5

Mol W.

: 416.51

Cat No.

: SA31310

Impurities, Ramipril

Ramipril EP Impurity K

Please enquire for price & pack size

Out of Stock

CAS No.

: 108736-10-3

Mol F.

: C21H26N2O4

Mol W.

: 370.44

Cat No.

: SA31311

Impurities, Ramipril

Ramipril EP Impurity L

Please enquire for price & pack size

Out of Stock

CAS No.

: 1309040-96-7

Mol F.

: C23H30N2O5

Mol W.

: 414.49

Cat No.

: SA31312

Impurities, Ramipril

Ramipril EP Impurity M

Please enquire for price & pack size

Out of Stock

CAS No.

: 2743-38-6

Mol F.

: C18H14O8

Mol W.

: 358.3

Cat No.

: SA31313

Impurities, Ramipril

Ramipril EP Impurity N

Please enquire for price & pack size

Out of Stock

CAS No.

: 129939-63-5

Mol F.

: C₂₃H₃₂N₂O₅

Mol W.

: 416.51

Cat No.

: SA31314

Impurities, Ramipril

Ramipril EP Impurity O

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C30H38N2O6

Mol W.

: 522.63

Cat No.

: SA31315

Impurities, Ranitidine

Ranitidine

Please enquire for price & pack size

Out of Stock

CAS No.

: 66357-35-5(base);66357-59-3(HClsalt)

Mol F.

: C13H23ClN4O3S

Mol W.

: 350.86

Cat No.

: SA26500

Impurities, Ranitidine

Ranitidine EP Impurity J

Please enquire for price & pack size

Out of Stock

CAS No.

: 1331637-48-9

Mol F.

: C11H22N6O4S2

Mol W.

: 366.46

Cat No.

: SA26510

Impurities, Ranitidine

Ranitidine N,S-Dioxide

Please enquire for price & pack size

Out of Stock

CAS No.

: 1185237-42-6

Mol F.

: C13H22N4O5S

Mol W.

: 346.4

Cat No.

: SA26515

Impurities, Ranitidine

Ranitidine Nitroso Impurity 2

Please enquire for price & pack size

Out of Stock

CAS No.

: 185847-75-0

Mol F.

: C13H20N6O5S

Mol W.

: 372.4

Cat No.

: SA26522

Impurities, Ranolazine

Ranolazine

Please enquire for price & pack size

Out of Stock

CAS No.

: 95635-55-5(base);95635-56-6(dihydrochloridesalt)

Mol F.

: C24H33N3O4

Mol W.

: 427.54

Cat No.

: SA26800

Impurities, Ranolazine

Ranolazine Bis-N-Oxide

Please enquire for price & pack size

Out of Stock

CAS No.

: 1246816-00-1

Mol F.

: C24H33N3O6

Mol W.

: 459.54

Cat No.

: SA26801

Impurities, Ranolazine

Ranolazine N-Desacetamido Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 162712-35-8

Mol F.

: C14H22N2O3

Mol W.

: 266.33999999999997

Cat No.

: SA26802

Impurities, Ranolazine

Ranolazine O-Desaryl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 172430-46-5

Mol F.

: C17H27N3O3

Mol W.

: 321.41000000000003

Cat No.

: SA26803

Impurities, Ranolazine

Ranolazine O-Desmethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 172430-45-4

Mol F.

: C23H31N3O4

Mol W.

: 413.51

Cat No.

: SA26804

Impurities, Ranolazine

Ranolazine USP RC A

Please enquire for price & pack size

Out of Stock

CAS No.

: 2210-74-4

Mol F.

: C10H12O3

Mol W.

: 180.2

Cat No.

: SA26805

Impurities, Ranolazine

Ranolazine USP RC B

Please enquire for price & pack size

Out of Stock

CAS No.

: 755711-09-2

Mol F.

: C23H31N3O3

Mol W.

: 397.51

Cat No.

: SA26806

Impurities, Ranolazine

Ranolazine USP RC C

Please enquire for price & pack size

Out of Stock

CAS No.

: 5294-61-1

Mol F.

: C14H21N3O

Mol W.

: 247.34

Cat No.

: SA26807

Impurities, Ranolazine

Ranolazine USP RC D

Please enquire for price & pack size

Out of Stock

CAS No.

: 380204-72-8

Mol F.

: C24H32N4O2

Mol W.

: 408.54

Cat No.

: SA26808

Impurities, Remdesivir

Remdesivir

Please enquire for price & pack size

Out of Stock

CAS No.

: 1809249-37-3

Mol F.

: C27H35N6O8P

Mol W.

: 602.58000000000004

Cat No.

: SA42700

Impurities, Remdesivir

Remdesivir Carboxylic Acid

Please enquire for price & pack size

Out of Stock

CAS No.

: 1809249-37-3

Mol F.

: C21H23N6O8P

Mol W.

: 518.41

Cat No.

: SA42718

Impurities, Remdesivir

Remdesivir D-Alanine Analog

Please enquire for price & pack size

Out of Stock

CAS No.

: 2093124-26-4

Mol F.

: C27H35N6O8P

Mol W.

: 602.58

Cat No.

: SA42708

Impurities, Remdesivir

Remdesivir Des alanine impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2607871-93-0

Mol F.

: C18H18N5O7P

Mol W.

: 447.34

Cat No.

: SA42713

Impurities, Remdesivir

Remdesivir Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 159326-68-8

Mol F.

: C6H6N4

Mol W.

: 134.1

Cat No.

: SA42724