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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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Alprazolam, Impurities

Alprazolam EP Impurity G

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CAS No.

: 448950-89-8

Mol F.

: C17H13ClN4

Mol W.

: 308.8

Cat No.

: SA57506

Alprazolam, Impurities

Alprazolam EP Impurity H

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CAS No.

: 2203515-05-1

Mol F.

: C34H27Cl2N7O2

Mol W.

: 636.5

Cat No.

: SA57507

Alprazolam, Impurities

Alprazolam EP Impurity I

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CAS No.

: NA

Mol F.

: C34H27Cl2N7O2

Mol W.

: 636.5

Cat No.

: SA57508

Alprazolam, Impurities

Alprazolam EP Impurity J

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CAS No.

: NA

Mol F.

: C34H25Cl2N7O

Mol W.

: 618.5

Cat No.

: SA57509

Alprazolam, Impurities

Alprazolam USP Related Compound A

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CAS No.

: 28910-89-6

Mol F.

: C17H15ClN4O

Mol W.

: 326.8

Cat No.

: SA57510

Ambroxol, Impurities

Ambroxol

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CAS No.

: 18683-91-5

Mol F.

: C13H18Br2N2O

Mol W.

: 378.1

Cat No.

: SA54800

Ambroxol, Impurities

Ambroxol Benzoic Acid Impurity

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CAS No.

: 609-85-8

Mol F.

: C7H5Br2NO2

Mol W.

: 294.9

Cat No.

: SA54807

Ambroxol, Impurities

Ambroxol Cycloimine Impurity

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CAS No.

: 2088879-81-4

Mol F.

: C14H16Br2N2O

Mol W.

: 388.1

Cat No.

: SA54812

Ambroxol, Impurities

Ambroxol Didesbromo Impurity

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CAS No.

: 46727-91-7

Mol F.

: C13H20N2O

Mol W.

: 220.3

Cat No.

: SA54809

Ambroxol, Impurities

Ambroxol EP Impurity A

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CAS No.

: 50739-76-9

Mol F.

: C7H7Br2NO

Mol W.

: 280.9

Cat No.

: SA54801

Ambroxol, Impurities

Ambroxol EP Impurity B

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CAS No.

: 18683-95-9

Mol F.

: C14H18Br2N2O

Mol W.

: 390.1

Cat No.

: SA54802

Ambroxol, Impurities

Ambroxol EP Impurity C

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CAS No.

: 50910-53-7

Mol F.

: C13H16Br2N2O

Mol W.

: 376.1

Cat No.

: SA54803

Ambroxol, Impurities

Ambroxol EP Impurity D

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CAS No.

: 1384955-66-1

Mol F.

: C13H18Br2N2O : HCl

Mol W.

: 378.1 : 36.5

Cat No.

: SA54804

Ambroxol, Impurities

Ambroxol EP Impurity E

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CAS No.

: 50910-55-9

Mol F.

: C7H5Br2NO

Mol W.

: 278.9

Cat No.

: SA54805

Ambroxol, Impurities

Ambroxol Monobromo Impurity

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CAS No.

: 101900-44-1

Mol F.

: C13H19BrN2O : HCl

Mol W.

: 299.2 : 36.5

Cat No.

: SA54811

Amikacin, Impurities

Amikacin

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CAS No.

: 37517-28-5

Mol F.

: C22H43N5O13

Mol W.

: 585.6

Cat No.

: SA56000

Amikacin, Impurities

Amikacin EP Impurity A

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CAS No.

: 50725-24-1

Mol F.

: C22H43N5O13

Mol W.

: 585.6

Cat No.

: SA56001

Amikacin, Impurities

Amikacin EP Impurity B

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CAS No.

: 927821-99-6

Mol F.

: C26H50N6O15

Mol W.

: 686.7

Cat No.

: SA56002

Amikacin, Impurities

Amikacin EP Impurity C

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CAS No.

: 50725-25-2

Mol F.

: C22H43N5O13

Mol W.

: 585.6

Cat No.

: SA56003

Amikacin, Impurities

Amikacin EP Impurity D

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CAS No.

: 59-01-8

Mol F.

: C18H36N4O11

Mol W.

: 484.5

Cat No.

: SA56004

Amikacin, Impurities

Amikacin EP Impurity E

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CAS No.

: NA

Mol F.

: C22H43N5O13

Mol W.

: 585.6

Cat No.

: SA56005

Amikacin, Impurities

Amikacin EP Impurity F

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CAS No.

: 197909-67-4

Mol F.

: C26H50N6O15

Mol W.

: 686.7

Cat No.

: SA56006

Amikacin, Impurities

Amikacin EP Impurity G

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CAS No.

: 50896-99-6

Mol F.

: C22H43N5O13

Mol W.

: 585.6

Cat No.

: SA56007

Amikacin, Impurities

Amikacin EP Impurity H

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CAS No.

: 48237-20-3

Mol F.

: C22H44N6O12

Mol W.

: 584.6

Cat No.

: SA56008

Amikacin, Impurities

Amikacin EP Impurity I

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CAS No.

: 40371-51-5

Mol F.

: C4H9NO3

Mol W.

: 119.1

Cat No.

: SA56009

Amiloride, Impurities

Amiloride

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CAS No.

: 2609-46-3

Mol F.

: C6H8ClN7O

Mol W.

: 229.6

Cat No.

: SA57200

Amiloride, Impurities

Amiloride Carboxamide Impurity

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CAS No.

: 14236-57-8

Mol F.

: C5H6ClN5O

Mol W.

: 187.6

Cat No.

: SA57204

Amiloride, Impurities

Amiloride EP Impurity A

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CAS No.

: 1458-01-1

Mol F.

: C6H7ClN4O2

Mol W.

: 202.6

Cat No.

: SA57201

Amiloride, Impurities

Amiloride EP Impurity B

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CAS No.

: 4878-36-8

Mol F.

: C5H5ClN4O2

Mol W.

: 188.6

Cat No.

: SA57202

Amiloride, Impurities

Amiloride EP Impurity C

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CAS No.

: 76599-74-1

Mol F.

: C6H7ClN6O2

Mol W.

: 230.6

Cat No.

: SA57203

Amiodarone, Impurities

Amiodarone

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CAS No.

: 19774-82-4

Mol F.

: C25H30ClI2NO3

Mol W.

: 681.77

Cat No.

: SA26400

Amiodarone, Impurities

Amiodarone Didesethyl Impurity

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CAS No.

: 94317-95-0 (Base); 757220-04-5(HCl salt)

Mol F.

: C21H21I2NO3

Mol W.

: 589.21

Cat No.

: SA26409

Amiodarone, Impurities

Amiodarone EP Impurity A

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CAS No.

: 23551-25-9 (Base); 95820-13-6 (HCl Salt)

Mol F.

: C25H31NO3

Mol W.

: 393.52

Cat No.

: SA26401

Amiodarone, Impurities

Amiodarone EP Impurity B

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CAS No.

: 83409-32-9(Base);96027-74-6(HClSalt)

Mol F.

: C23H25I2NO3

Mol W.

: 617.26

Cat No.

: SA26402

Amiodarone, Impurities

Amiodarone EP Impurity C

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CAS No.

: 85642-08-6

Mol F.

: C25H30INO3

Mol W.

: 519.41

Cat No.

: SA26403

Amiodarone, Impurities

Amiodarone EP Impurity D

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CAS No.

: 1951-26-4

Mol F.

: C19H16I2O3

Mol W.

: 546.14

Cat No.

: SA26404

Amiodarone, Impurities

Amiodarone EP Impurity E

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CAS No.

: 52490-15-0

Mol F.

: C19H18O3

Mol W.

: 294.34

Cat No.

: SA26405

Amiodarone, Impurities

Amiodarone EP Impurity F

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CAS No.

: 147030-50-0

Mol F.

: C19H17IO3

Mol W.

: 420.24

Cat No.

: SA26406

Amiodarone, Impurities

Amiodarone EP Impurity G

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CAS No.

: 1087223-70-8

Mol F.

: C26H31I2NO4

Mol W.

: 675.34

Cat No.

: SA26407

Amiodarone, Impurities

Amiodarone EP Impurity H

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CAS No.

: 100-35-6 (base); 869-24-9(HCl salt)

Mol F.

: C6H14ClN

Mol W.

: 135.64

Cat No.

: SA26408

Amiodarone, Impurities

Amiodarone Methoxy Impurity

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CAS No.

: 83790-87-8

Mol F.

: C20H20O3

Mol W.

: 308.37

Cat No.

: SA26410

Amiodarone, Impurities

Amiodarone N-Oxide

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CAS No.

: 318267-30-0

Mol F.

: C25H29I2NO4

Mol W.

: 661.31

Cat No.

: SA26411

Amisulpride, Impurities

Amisulpride

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CAS No.

: 71675-85-9

Mol F.

: C17H27N3O4S

Mol W.

: 369.5

Cat No.

: SA55500

Amisulpride, Impurities

Amisulpride EP Impurity A

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CAS No.

: 26116-12-1

Mol F.

: C7H16N2

Mol W.

: 128.2

Cat No.

: SA55503

Amisulpride, Impurities

Amisulpride EP Impurity B

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CAS No.

: 148516-54-5

Mol F.

: C16H25N3O4S

Mol W.

: 355.5

Cat No.

: SA55504

Amisulpride, Impurities

Amisulpride EP Impurity C

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CAS No.

: 176849-91-5

Mol F.

: C15H22IN3O2

Mol W.

: 403.3

Cat No.

: SA55505

Amisulpride, Impurities

Amisulpride EP Impurity D

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CAS No.

: 71676-00-1

Mol F.

: C16H25N3O4S

Mol W.

: 355.5

Cat No.

: SA55506

Amisulpride, Impurities

Amisulpride EP Impurity E

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CAS No.

: 71675-87-1

Mol F.

: C10H13NO5S

Mol W.

: 259.3

Cat No.

: SA55507

Amisulpride, Impurities

Amisulpride EP Impurity F

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CAS No.

: 71676-01-2

Mol F.

: C17H27N3O5S

Mol W.

: 385.5

Cat No.

: SA55508

Amisulpride, Impurities

Amisulpride EP Impurity G

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CAS No.

: 148516-68-1

Mol F.

: C17H27N3O4S

Mol W.

: 369.5

Cat No.

: SA55509