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Pharmaceutical Impurity Reference Standards

Process impurities, degradation products and genotoxic impurity reference standards with full characterization.

Amiodarone EP Impurity C structure

Amiodarone EP Impurity C

CAS: 85642-08-6

In Stock97%+

Amiodarone Impurity 14 structure

Amiodarone Impurity 14

CAS: 52981-01-8

In Stock97%+

Amitriptyline EP Impurity C structure

Amitriptyline EP Impurity C

CAS: 72-69-5

In Stock97%+

Amitriptyline Hydroxy Impurity F structure

Amitriptyline Hydroxy Impurity F

CAS: 64520-05-4

In Stock97%+

Empagliflozin impurity 01 structure

Empagliflozin impurity 01

CAS: 95574-97-3

In Stock97%+

Amlodipine Impurity 77 structure

Amlodipine Impurity 77

CAS: 265136-65-0

In Stock97%+

Ammoxetine Impurity C38 structure

Ammoxetine Impurity C38

CAS: 65653-31-8

In Stock97%+

Ammuxetine Impurity 4 structure

Ammuxetine Impurity 4

CAS: 367-28-2

In Stock97%+

Amorolfine Impurity N1 structure

Amorolfine Impurity N1

CAS: 67467-96-3

In Stock97%+

Amorolfine Impurity N2 structure

Amorolfine Impurity N2

CAS: 67468-13-7

In Stock97%+

Amorolfine Impurity C17 structure

Amorolfine Impurity C17

CAS: 67306-03-0

In Stock97%+

Amoxapine Impurity 10 (8-Hydroxyamoxapine) structure

Amoxapine Impurity 10 (8-Hydroxyamoxapine)

CAS: 61443-78-5

In Stock97%+

Amoxapine Impurity 2 structure

Amoxapine Impurity 2

CAS: 2770-11-8

In Stock97%+

Amoxapine Impurity 3 structure

Amoxapine Impurity 3

CAS: 21636-40-8

In Stock97%+

Amoxapine Impurity 5 structure

Amoxapine Impurity 5

CAS: 5606-39-3

In Stock97%+

Amoxicillin EP Impurity I (HCl salt) structure

Amoxicillin EP Impurity I (HCl salt)

CAS: 52067-90-0

In Stock97%+

Amphetamine Impurity 1 structure

Amphetamine Impurity 1

CAS: 459-01-8

In Stock97%+

Bacampicillin EP Impurity I N,N＇-Dibenzylethylenediamine structure

Bacampicillin EP Impurity I N,N＇-Dibenzylethylenediamine

CAS: 33276-75-4

In Stock97%+

Ampicillin EP Impurity J Sodium Salt structure

Ampicillin EP Impurity J Sodium Salt

CAS: 20520-33-6

In Stock97%+

Ampicillin EP Impurity L Potassium Salt structure

Ampicillin EP Impurity L Potassium Salt

CAS: 37661-32-8

In Stock97%+

Ampicillin Impurity Ⅱ structure

Ampicillin Impurity Ⅱ

CAS: 26280-46-6

In Stock97%+

Amrubicin Impurity 1 structure

Amrubicin Impurity 1

CAS: 92395-41-0

In Stock97%+

Amsacrine Impurity 5 structure

Amsacrine Impurity 5

CAS: 78701-57-2

In Stock97%+

Amsacrine Impurity 8 structure

Amsacrine Impurity 8

CAS: 791005-56-6

In Stock97%+

Amyrin Impurity 3 structure

Amyrin Impurity 3

CAS: 486-34-0

In Stock97%+

Anagliptin Impurity 2 structure

Anagliptin Impurity 2

CAS: 23500-18-7

In Stock97%+

Anagrelide Impurity 26 structure

Anagrelide Impurity 26

CAS: 742010-46-4

In Stock97%+

Anagrelide Impurity 6 structure

Anagrelide Impurity 6

CAS: 349150-82-9

In Stock97%+

Testosterone Impurity N14 structure

Testosterone Impurity N14

CAS: 47122-33-8

In Stock97%+

Fluticasone Impurity N7 structure

Fluticasone Impurity N7

CAS: 80474-27-7

In Stock97%+

Medroxyprogesterone Impurity N2 structure

Medroxyprogesterone Impurity N2

CAS: 77881-13-1

In Stock97%+

Anecortave Impurity 4 structure

Anecortave Impurity 4

CAS: 50733-54-5

In Stock97%+

Anthraquinone Impurity 2 structure

Anthraquinone Impurity 2

CAS: 2961-04-8

In Stock97%+

Anthraquinone Impurity 2 structure

Anthraquinone Impurity 2

CAS: 92439-42-4

In Stock97%+

Anthraquinone Impurity 6 structure

Anthraquinone Impurity 6

CAS: 61792-00-5

In Stock97%+

Apixaban Impurity N2 structure

Apixaban Impurity N2

CAS: 940-11-4

In Stock97%+

Apixaban Impurity N1 structure

Apixaban Impurity N1

CAS: 6947-36-0

In Stock97%+

Apixaban Impurity N3 structure

Apixaban Impurity N3

CAS: 2413365-22-5

In Stock97%+

Apixaban Impurity 35 structure

Apixaban Impurity 35

CAS: 2285-12-3

In Stock97%+

Apixaban Impurity 45 structure

Apixaban Impurity 45

CAS: 503614-56-0

In Stock97%+

Apixaban Impurity 61 structure

Apixaban Impurity 61

CAS: 62522-25-2

In Stock97%+

Apixaban Impurity 96 structure

Apixaban Impurity 96

CAS: 3471-32-7

In Stock97%+

Apixaban Impurity 99 structure

Apixaban Impurity 99

CAS: 22715-73-7

In Stock97%+

Apremilast Impurity 18 structure

Apremilast Impurity 18

CAS: 51673-94-0

In Stock97%+

Apremilast Impurity 35 structure

Apremilast Impurity 35

CAS: 253168-83-1

In Stock97%+

Apremilast Impurity 36 structure

Apremilast Impurity 36

CAS: 253168-82-0

In Stock97%+

Apremilast Impurity 57 structure

Apremilast Impurity 57

CAS: 3096-76-2

In Stock97%+

Arbidol Impurity 11 structure

Arbidol Impurity 11

CAS: 21759-71-7

In Stock97%+

Arformoterol Impurity 46 structure

Arformoterol Impurity 46

CAS: 7529-87-5

In Stock97%+

Argatroban Impurity N6 structure

Argatroban Impurity N6

CAS: 203383-33-9

In Stock97%+

Argatroban Impurity 72 structure

Argatroban Impurity 72

CAS: 66937-93-7

In Stock97%+

Argatroban Impurity N1 structure

Argatroban Impurity N1

CAS: 74863-85-7

In Stock97%+

Argatroban Impurity N2 structure

Argatroban Impurity N2

CAS: 79672-38-1

In Stock97%+

Aripiprazole Impurity 43 structure

Aripiprazole Impurity 43

CAS: 54147-91-0

In Stock97%+

Aripiprazole Impurity 51 structure

Aripiprazole Impurity 51

CAS: 69601-46-3

In Stock97%+

Aripiprazole-Impurity 10 structure

Aripiprazole-Impurity 10

CAS: 82657-32-7

In Stock97%+

Aripiprazole Impurity 16 structure

Aripiprazole Impurity 16

CAS: 23478-25-3

In Stock97%+

Aristolochic Acid A Impurity N1 structure

Aristolochic Acid A Impurity N1

CAS: 38965-71-8

In Stock97%+

Arotinolol Impurity 2 structure

Arotinolol Impurity 2

CAS: 45720-12-5

In Stock97%+

Artemether impurity B structure

Artemether impurity B

CAS: 71939-51-0

In Stock97%+

Ascorbic Acid Impurity 9 structure

Ascorbic Acid Impurity 9

CAS: 28119-61-1

In Stock97%+

Asenapine Impurity 7 structure

Asenapine Impurity 7

CAS: 70958-18-8

In Stock97%+

Aspartic Acid - Impurity G (Hydrochloride Salt) structure

Aspartic Acid - Impurity G (Hydrochloride Salt)

CAS: 71317-06-1

In Stock97%+

Aspartic Acid - Impurity I (Hydrochloride Salt) structure

Aspartic Acid - Impurity I (Hydrochloride Salt)

CAS: 71855-54-4

In Stock97%+

Aspirin Impurity 22 structure

Aspirin Impurity 22

CAS: 493-53-8

In Stock97%+

Ataluren Impurity N structure

Ataluren Impurity N

CAS: 775304-56-8

In Stock97%+

Atazanavir EP Impurity J structure

Atazanavir EP Impurity J

CAS: 198904-86-8

In Stock97%+

Atazanavir Impurity 12 structure

Atazanavir Impurity 12

CAS: 198904-84-6

In Stock97%+

Atazanavir Impurity N1 (Relative stereochemistry) structure

Atazanavir Impurity N1 (Relative stereochemistry)

CAS: 98818-34-9

In Stock97%+

Atomoxetine 4-Hydroxy 2-Methyl Impurity structure

Atomoxetine 4-Hydroxy 2-Methyl Impurity

CAS: 540729-12-2

In Stock97%+

Atomoxetine Impurity 1 structure

Atomoxetine Impurity 1

CAS: 83015-25-2

In Stock97%+

Atomoxetine Impurity N1 structure

Atomoxetine Impurity N1

CAS: 5409-62-1

In Stock97%+

Atomoxetine Impurity 13 structure

Atomoxetine Impurity 13

CAS: 60960-88-5

In Stock97%+

Atomoxetine Impurity 3 structure

Atomoxetine Impurity 3

CAS: 93982-97-9

In Stock97%+

Atomoxetine Impurity 36 structure

Atomoxetine Impurity 36

CAS: 63765-72-0

In Stock97%+

Atomoxetine Impurity 38 structure

Atomoxetine Impurity 38

CAS: 29869-74-7

In Stock97%+

Atorvastatin EP Impurity A HCl structure

Atorvastatin EP Impurity A HCl

CAS: 433289-84-0(free base)

In Stock97%+

Atorvastatin EP Impurity B structure

Atorvastatin EP Impurity B

CAS: 887324-52-9

In Stock97%+

Atorvastatin EP Impurity C structure

Atorvastatin EP Impurity C

CAS: 693794-20-6

In Stock97%+

Atorvastatin Impurity N4 structure

Atorvastatin Impurity N4

CAS: 62148-67-8

In Stock97%+

Atorvastatin Impurity 37 structure

Atorvastatin Impurity 37

CAS: 63423-96-1

In Stock97%+

Atorvastatin Impurity N3 structure

Atorvastatin Impurity N3

CAS: 77294-82-7

In Stock97%+

Atorvastatin Impurity 78 structure

Atorvastatin Impurity 78

CAS: 2588261-38-3

In Stock97%+

Atovaquone Impurity 1 structure

Atovaquone Impurity 1

CAS: 49708-81-8

In Stock97%+

Atovaquone Impurity 3 (Mixture of cis and trans Isomers) structure

Atovaquone Impurity 3 (Mixture of cis and trans Isomers)

CAS: 95233-36-6

In Stock97%+

Atracurium Impurity 71 structure

Atracurium Impurity 71

CAS: 5436-53-3

In Stock97%+

Atracurium Impurity 20 structure

Atracurium Impurity 20

CAS: 96946-41-7

In Stock97%+

Cisatracurium Besilate EP Impurity R Dioxalate structure

Cisatracurium Besilate EP Impurity R Dioxalate

CAS: 96687-52-4

In Stock97%+

Atracurium Impurity 5 (Tartrate) structure

Atracurium Impurity 5 (Tartrate)

CAS: 24734-71-2 (free base)

In Stock97%+

Atracurium Impurity 53 structure

Atracurium Impurity 53

CAS: 64228-79-1

In Stock97%+

Cisatracurium Besilate EP Impurity S structure

Cisatracurium Besilate EP Impurity S

CAS: 96946-50-8

In Stock97%+

Atracurium EP Impurity F structure

Atracurium EP Impurity F

CAS: 34866-20-1

In Stock97%+

Atracurium Impurity 7 HCl structure

Atracurium Impurity 7 HCl

CAS: 54417-52-6

In Stock97%+

Atropine Impurity 14 structure

Atropine Impurity 14

CAS: 3087-01-2

In Stock97%+

Atropine Impurity 14 structure

Atropine Impurity 14

CAS: 3423-27-6

In Stock97%+

Aucubin Impurity 5 (Plantarenaloside) structure

Aucubin Impurity 5 (Plantarenaloside)

CAS: 72396-01-1

In Stock97%+

Avanafil Impurity 33 structure

Avanafil Impurity 33

CAS: 247569-72-8

In Stock97%+

Avanafil Impurity N59 structure

Avanafil Impurity N59

CAS: 27427-92-5

In Stock97%+

Avanafil Impurity N91 structure

Avanafil Impurity N91

CAS: 31519-62-7

In Stock97%+

Avanafil Impurity 78 structure

Avanafil Impurity 78

CAS: 56633-75-1

In Stock97%+

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