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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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Alogliptin, Impurities

Alogliptin Chloro-N-methyl Dihydropyrimidinyl Benzonitrile Impurity

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CAS No.

: 865758-96-9

Mol F.

: C13H10ClN3O2

Mol W.

: 275.7

Cat No.

: SA54122

Alogliptin, Impurities

Alogliptin Dibenzonitrile Impurity

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CAS No.

: 865759-10-0

Mol F.

: C25H24N6O2

Mol W.

: 440.5

Cat No.

: SA54126

Alogliptin, Impurities

Alogliptin Dibromomethyl Benzonitrile Impurity

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CAS No.

: 655-63-0

Mol F.

: C8H5Br2N

Mol W.

: 274.9

Cat No.

: SA54118

Alogliptin, Impurities

Alogliptin Dihydropyrimidinyl Benzonitrile Impurity

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CAS No.

: 865758-95-8

Mol F.

: C12H8ClN3O2

Mol W.

: 261.7

Cat No.

: SA54115

Alogliptin, Impurities

Alogliptin Hydroxy Impurity

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CAS No.

: NA

Mol F.

: C18H20N4O3

Mol W.

: 340.4

Cat No.

: SA54111

Alogliptin, Impurities

Alogliptin Impurity A

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CAS No.

: 1638544-62-3

Mol F.

: C18H21N5O2

Mol W.

: 339.4

Cat No.

: SA54102

Alogliptin, Impurities

Alogliptin Impurity B

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CAS No.

: 1339955-49-5

Mol F.

: C18H21N5O2

Mol W.

: 339.4

Cat No.

: SA54103

Alogliptin, Impurities

Alogliptin Impurity C

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CAS No.

: 4316-23-8

Mol F.

: C9H8O4

Mol W.

: 180.2

Cat No.

: SA54104

Alogliptin, Impurities

Alogliptin Impurity D

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CAS No.

: 1573118-32-7

Mol F.

: C14H16N2O2

Mol W.

: 244.3

Cat No.

: SA54105

Alogliptin, Impurities

Alogliptin Impurity E

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CAS No.

: 1638544-56-5

Mol F.

: C27H25N5O4

Mol W.

: 483.5

Cat No.

: SA54106

Alogliptin, Impurities

Alogliptin Impurity F

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CAS No.

: 1638544-55-4

Mol F.

: C26H23N5O4

Mol W.

: 469.5

Cat No.

: SA54107

Alogliptin, Impurities

Alogliptin Impurity G

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CAS No.

: NA

Mol F.

: C31H32N8O4

Mol W.

: 580.6

Cat No.

: SA54108

Alogliptin, Impurities

Alogliptin N-Methyl Dihydropyrimidinyl Benzonitrile

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CAS No.

: 2749428-42-8

Mol F.

: C13H10ClN3O2

Mol W.

: 275.7

Cat No.

: SA54116

Alogliptin, Impurities, Nitrosamine

Alogliptin N-Nitrosoglycine Impurity

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CAS No.

: NA

Mol F.

: C20H22N6O5

Mol W.

: 426.4

Cat No.

: SA54131

Alogliptin, Impurities

Alogliptin Piperidinylamin Dihydropyrimidinyl Benzonitrile Impurity

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CAS No.

: 2089611-85-6

Mol F.

: C18H21N5O2

Mol W.

: 339.4

Cat No.

: SA54128

Alogliptin, Impurities

Alogliptin Trioxotetrahydropyrimidinyl Benzonitrile

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CAS No.

: 1246610-72-9

Mol F.

: C13H11N3O3

Mol W.

: 257.3

Cat No.

: SA54119

Fingolimod, Impurities

alpha-Amino Acid Fingolimod Impurity

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CAS No.

: 596820-19-8

Mol F.

: C18H29NO2

Mol W.

: 291.43

Cat No.

: SA34505

Impurities, Permethrin

Alpha-Cypermethrin

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CAS No.

: 67375-30-8

Mol F.

: C22H19Cl2NO3

Mol W.

: 416.3

Cat No.

: SA51912

Dapagliflozin

Alpha-Ethoxy Dapagliflozin Analog

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CAS No.

: 2173339-31-4

Mol F.

: C23H29ClO7

Mol W.

: 452.9

Cat No.

: SA15088

Dapagliflozin

Alpha-Methoxy Dapagliflozin Ketone Impurity

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CAS No.

: 2377899-45-9

Mol F.

: C22H25ClO8

Mol W.

: 452.9

Cat No.

: SA15082

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

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

Amitriptyline, Impurities

Amitriptyline

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CAS No.

: 549-18-8

Mol F.

: C20H23N

Mol W.

: 277.4

Cat No.

: SA37700

Amitriptyline, Impurities

Amitriptyline EP Impurity B

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CAS No.

: 6202-23-9

Mol F.

: C20H21N

Mol W.

: 275.39

Cat No.

: SA37702

Amitriptyline, Impurities

Amitriptyline N-Oxide

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CAS No.

: 4317-14-0

Mol F.

: C20H23NO

Mol W.

: 293.4

Cat No.

: SA37708

Amlodipine, Impurities

Amlodipine (R)-Isomer

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CAS No.

: 103129-81-3

Mol F.

: C20H25ClN2O5

Mol W.

: 408.88

Cat No.

: SA30500

Amlodipine, Impurities

Amlodipine (S)-Isomer

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CAS No.

: 103129-82-4

Mol F.

: C20H25ClN2O5

Mol W.

: 408.88

Cat No.

: SA30501

Amlodipine, Impurities

Amlodipine 2-Aminoethyl Ester Impurity

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CAS No.

: 2923811-73-6

Mol F.

: C20H26ClN3O5

Mol W.

: 423.89

Cat No.

: SA30523

Amlodipine, Impurities

Amlodipine Azido Impurity

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CAS No.

: 88150-46-3

Mol F.

: C20H23ClN4O5

Mol W.

: 434.87

Cat No.

: SA30511

Amlodipine, Impurities

Amlodipine EP Impurity K

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CAS No.

: 1621516-91-3

Mol F.

: C18H20ClNO3

Mol W.

: 333.81

Cat No.

: SA30510