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Impurities

SynThink is a trusted producer and supplier of Pharmaceutical Reference Standards, including Impurity Standards. These materials are essential for pharmaceutical companies conducting research into the quality, stability, and biological safety of drug products. We maintain a robust inventory of API impurities, ready to support your development and regulatory needs.

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Ibuprofen, Impurities

Ibuprofen EP Impurity A

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CAS No.

: 66622-47-7

Mol F.

: C₁₃H₁₈O₂

Mol W.

: 206.28

Cat No.

: SA30103

Ibuprofen, Impurities

Ibuprofen EP Impurity B

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CAS No.

: 3585-49-7

Mol F.

: C₁₃H₁₈O₂

Mol W.

: 206.28

Cat No.

: SA30104

Ibuprofen, Impurities

Ibuprofen EP Impurity C

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CAS No.

: 59512-17-3

Mol F.

: C₁₃H₁₉NO

Mol W.

: 205.3

Cat No.

: SA30105

Ibuprofen, Impurities

Ibuprofen EP Impurity D

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CAS No.

: 938-94-3

Mol F.

: C₁₀H₁₂O₂

Mol W.

: 164.2

Cat No.

: SA30106

Ibuprofen, Impurities

Ibuprofen EP Impurity E

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CAS No.

: 38861-78-8

Mol F.

: C₁₂H₁₆O

Mol W.

: 176.25

Cat No.

: SA30107

Ibuprofen, Impurities

Ibuprofen EP Impurity F

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CAS No.

: 65322-85-2

Mol F.

: C₁₃H₁₈O₂

Mol W.

: 206.28

Cat No.

: SA30108

Ibuprofen, Impurities

Ibuprofen EP Impurity G

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CAS No.

: 1391054-15-1

Mol F.

: C₂₆H₃₂O₄

Mol W.

: 408.53

Cat No.

: SA30109

Ibuprofen, Impurities

Ibuprofen EP Impurity H

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CAS No.

: 2143535-25-3

Mol F.

: C24H32O

Mol W.

: 336.51

Cat No.

: SA30110

Ibuprofen, Impurities

Ibuprofen EP Impurity I

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CAS No.

: 2143535-26-4

Mol F.

: C24H34

Mol W.

: 322.53

Cat No.

: SA30111

Ibuprofen, Impurities

Ibuprofen EP Impurity J

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CAS No.

: 65813-55-0

Mol F.

: C₁₃H₁₆O₃

Mol W.

: 220.26

Cat No.

: SA30112

Ibuprofen, Impurities

Ibuprofen EP Impurity K

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CAS No.

: 43153-07-7

Mol F.

: C10H10O3

Mol W.

: 178.18

Cat No.

: SA30113

Ibuprofen, Impurities

Ibuprofen EP Impurity L

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CAS No.

: 53949-53-4

Mol F.

: C₁₃H₁₈O₃

Mol W.

: 222.28

Cat No.

: SA30114

Ibuprofen, Impurities

Ibuprofen EP Impurity M

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CAS No.

: 60057-62-7

Mol F.

: C₁₃H₁₈O₃

Mol W.

: 222.28

Cat No.

: SA30115

Ibuprofen, Impurities

Ibuprofen EP Impurity N

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CAS No.

: 3585-52-2

Mol F.

: C₁₁H₁₄O₂

Mol W.

: 178.23

Cat No.

: SA30116

Ibuprofen, Impurities

Ibuprofen EP Impurity O

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CAS No.

: 64451-76-9

Mol F.

: C13H18O2

Mol W.

: 206.28

Cat No.

: SA30117

Ibuprofen, Impurities

Ibuprofen EP Impurity P

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CAS No.

: 36039-36-8

Mol F.

: C₁₃H₂₀O

Mol W.

: 192.3

Cat No.

: SA30118

Ibuprofen, Impurities

Ibuprofen EP Impurity Q

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CAS No.

: 36039-35-7

Mol F.

: C₁₄H₁₈O

Mol W.

: 178.27

Cat No.

: SA30119

Ibuprofen, Impurities

Ibuprofen EP Impurity R

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CAS No.

: 102120-87-6

Mol F.

: C₂₂H₃₀

Mol W.

: 294.47

Cat No.

: SA30120

Imatinib, Impurities

Imatinib

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CAS No.

: 152459-95-5(base);1092942-82-9(salt)

Mol F.

: C₂₉H₃₁N₇O

Mol W.

: 493.6

Cat No.

: SA22200

Imatinib, Impurities

Imatinib (Pyridine)-N-Oxide

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CAS No.

: 571186-92-0

Mol F.

: C₂₉H₃₁N₇O₂

Mol W.

: 509.6

Cat No.

: SA22212

Imatinib, Impurities

Imatinib bis Impurity

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CAS No.

: 1365802-18-1

Mol F.

: C52H48N12O2

Mol W.

: 873.02

Cat No.

: SA22216

Imatinib, Impurities

Imatinib Carboxylic Impurity

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CAS No.

: 106261-49-8

Mol F.

: C₁₃H₂₀Cl₂N₂O₂

Mol W.

: 307.22000000000003

Cat No.

: SA22213

Imatinib, Impurities

Imatinib Diamine N1-Formyl Impurity

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CAS No.

: NA

Mol F.

: C17H15N5O

Mol W.

: 305.33

Cat No.

: SA22214

Imatinib, Impurities

Imatinib dipiperidine Impurity

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CAS No.

: NA

Mol F.

: C41H45N9O2

Mol W.

: 695.86

Cat No.

: SA22215

Imatinib, Impurities

Imatinib EP Impurity A

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CAS No.

: 55314-16-4

Mol F.

: C10H12N2O

Mol W.

: 176.22

Cat No.

: SA22201

Imatinib, Impurities

Imatinib EP Impurity B

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CAS No.

: 581076-65-5

Mol F.

: C₂₁H₃₀Cl₂N₆O

Mol W.

: 453.41

Cat No.

: SA22202

Imatinib, Impurities

Imatinib EP Impurity C

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CAS No.

: 404844-02-6

Mol F.

: C28H29N7O

Mol W.

: 479.58

Cat No.

: SA22203

Imatinib, Impurities

Imatinib EP Impurity D

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CAS No.

: 1821122-73-9

Mol F.

: C53H51ClN12O2

Mol W.

: 923.5

Cat No.

: SA22204

Imatinib, Impurities

Imatinib EP Impurity F

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CAS No.

: 152460-10-1

Mol F.

: C₁₆H₁₅N₅

Mol W.

: 277.32

Cat No.

: SA22205

Imatinib, Impurities

Imatinib EP Impurity G

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CAS No.

: 109-01-3(base);34352-59-5(HClsalt)

Mol F.

: C5H14Cl2N2

Mol W.

: 173.08

Cat No.

: SA22206

Imatinib, Impurities

Imatinib EP Impurity H

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CAS No.

: 350-03-8

Mol F.

: C₇H₇NO

Mol W.

: 121.14

Cat No.

: SA22207

Imatinib, Impurities

Imatinib EP Impurity I

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CAS No.

: 506-59-2

Mol F.

: C₂H₈ClN

Mol W.

: 81.540000000000006

Cat No.

: SA22208

Imatinib, Impurities

Imatinib EP Impurity J

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CAS No.

: 571186-91-9

Mol F.

: C₂₉H₃₁N₇O₂

Mol W.

: 509.6

Cat No.

: SA22209

Imatinib, Impurities

Imatinib Imidazole Impurity

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CAS No.

: 1256080-10-0

Mol F.

: C32H31N9O2

Mol W.

: 573.65

Cat No.

: SA22210

Imatinib, Impurities

Imatinib N-Acetyl Impurity

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CAS No.

: 1321600-78-5

Mol F.

: C31H33N7O2

Mol W.

: 535.64

Cat No.

: SA22211

Impurities, Olmesartan Medoxomil

Imidazole-4,5-dicarbonitriles

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CAS No.

: 51802-42-7

Mol F.

: C8H8N4

Mol W.

: 160.18

Cat No.

: SA17740

Clomipramine, Impurities

Iminodibenzyl

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CAS No.

: 494-19-9

Mol F.

: C14H13N

Mol W.

: 195.26

Cat No.

: SA33704

Carbamazepine, Impurities

Iminodibenzyl 5-Carbonyl Chloride

$95.00 25 mg

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CAS No.

: 33948-19-5

Mol F.

: C15H12ClNO

Mol W.

: 257.71

Cat No.

: SA20302

Carbamazepine, Impurities

Iminostilbene 10,11-Epoxide-N-carbonyl Chloride

$395.00 25 mg

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CAS No.

: 41359-09-5

Mol F.

: C15H10ClNO2

Mol W.

: 271.7

Cat No.

: SA20343

Carbamazepine, Impurities

Iminostilbene-10,11-dihydrodiol

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CAS No.

: 56211-73-5

Mol F.

: C14H13NO2

Mol W.

: 227.26

Cat No.

: SA20341

Impurities, Oxcarbazepine

Iminostilbene-10,11-dihydrodiol

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CAS No.

: 56211-73-5

Mol F.

: C₁₄H₁₃NO₂

Mol W.

: 227.26

Cat No.

: SA12517

Impurities, Indacaterol

Indacaterol

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CAS No.

: 312753-06-3; 1000160-96-2 (acetate salt) ; 753498-25-8 (Maleate salt)

Mol F.

: C24H28N2O3

Mol W.

: 392.5

Cat No.

: SA48700

Impurities, Indacaterol

Indacaterol 1-Hydroxyethyl

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CAS No.

: 1446354-19-3

Mol F.

: C24H28N2O4

Mol W.

: 408.49

Cat No.

: SA48703

Impurities, Indacaterol

Indacaterol 5,6-Diethyl Octahydro Iindenamine HCl Impurity

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CAS No.

: NA

Mol F.

: C13H26ClN

Mol W.

: 231.81

Cat No.

: SA48713

Impurities, Indacaterol

Indacaterol Impurity A

$300.00 25 mg

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CAS No.

: 773895-24-2

Mol F.

: C31H34N2O3

Mol W.

: 482.61

Cat No.

: SA48701

Impurities, Indacaterol

Indacaterol Impurity B

$300.00 25 mg

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CAS No.

: 1207760-24-4

Mol F.

: C49H49N3O6

Mol W.

: 775.95

Cat No.

: SA48702

Impurities, Indacaterol, Nitrosamine

Indacaterol Nitroso Impurity

$250.00 25 mg

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CAS No.

Mol F.

: C24H27N3O4

Mol W.

: 421.5

Cat No.

: SA48710

Impurities, Iohexol

Iohexol

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CAS No.

: 66108-95-0

Mol F.

: C19H26I3N3O9

Mol W.

: 821.14

Cat No.

: SA31500

Impurities, Iohexol

Iohexol EP Impurity A

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CAS No.

: 31127-80-7

Mol F.

: C16H20I3N3O7

Mol W.

: 747.06

Cat No.

: SA31501

Impurities, Iohexol

Iohexol EP Impurity B

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CAS No.

: 2732209-64-0

Mol F.

: C22H32I3N3O11

Mol W.

: 895.22

Cat No.

: SA31502