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Pharmaceutical Impurity Reference Standards

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

Olanzapine Impurity 29 structure

Olanzapine Impurity 29

CAS: 134801-02-8

In Stock97%+

Brivaracetam Impurity 17 structure

Brivaracetam Impurity 17

CAS: 134807-43-5

In Stock97%+

Brimonidine Impurity 17 structure

Brimonidine Impurity 17

CAS: 134862-75-2

In Stock97%+

Brimonidine Impurity 13 structure

Brimonidine Impurity 13

CAS: 134892-42-5

In Stock97%+

Isotretinoin EP Impurity A Sodium salt structure

Isotretinoin EP Impurity A Sodium salt

CAS: 13497-05-7

In Stock97%+

Ertapenem Impurity C344 structure

Ertapenem Impurity C344

CAS: 135042-12-5

In Stock97%+

Moxifloxacin EP Impurity F HCl structure

Moxifloxacin EP Impurity F HCl

CAS: 1350716-67-4

In Stock97%+

Quetiapine Impurity 26 structure

Quetiapine Impurity 26

CAS: 13509-33-6

In Stock97%+

Lusutrombopag Impurity N7 structure

Lusutrombopag Impurity N7

CAS: 13513-82-1

In Stock97%+

Acibenzolar Acid Impurity 23 structure

Acibenzolar Acid Impurity 23

CAS: 135158-53-1

In Stock97%+

Rifaximin Impurity B structure

Rifaximin Impurity B

CAS: 1351775-03-5

In Stock97%+

Losartan Impurity N2 structure

Losartan Impurity N2

CAS: 1351793-76-4

In Stock97%+

Ticagrelor Impurity 78 structure

Ticagrelor Impurity 78

CAS: 1351990-36-7

In Stock97%+

Efinaconazole Impurity 21 structure

Efinaconazole Impurity 21

CAS: 135206-87-0

In Stock97%+

Vecuronium Bromide Impurity 7 structure

Vecuronium Bromide Impurity 7

CAS: 13522-14-0

In Stock97%+

Prucalopride Succinate Impurity 45 structure

Prucalopride Succinate Impurity 45

CAS: 1352965-19-5

In Stock97%+

Brimonidine Related Impurity 3 structure

Brimonidine Related Impurity 3

CAS: 135306-56-8

In Stock97%+

Mirabegron Impurity 62 structure

Mirabegron Impurity 62

CAS: 135365-07-0

In Stock97%+

Edoxaban Impurity 15 (1R,2S,5S) Oxalate structure

Edoxaban Impurity 15 (1R,2S,5S) Oxalate

CAS: 1353893-22-7

In Stock97%+

Benidipine Impurity N50 structure

Benidipine Impurity N50

CAS: 1353946-52-7

In Stock97%+

Pazopanib Impurity 2 structure

Pazopanib Impurity 2

CAS: 1354224-47-7

In Stock97%+

JWH-073 Impurity 4 (JWH-073 4-Methyl Naphthyl Analog) structure

JWH-073 Impurity 4 (JWH-073 4-Methyl Naphthyl Analog)

CAS: 1354631-21-2

In Stock97%+

Cabazitaxel Impurity N1 structure

Cabazitaxel Impurity N1

CAS: 1354900-66-5

In Stock97%+

Ticagrelor Impurity N2 structure

Ticagrelor Impurity N2

CAS: 1354951-34-0

In Stock97%+

Mesalamine EP Impurity O Sodium Salt Hydrate structure

Mesalamine EP Impurity O Sodium Salt Hydrate

CAS: 1355342-86-7

In Stock97%+

Tacrolimus Impurity 24 structure

Tacrolimus Impurity 24

CAS: 1356352-20-9

In Stock97%+

N-Desformyl N-Acetyl (S,S,R,S)-Orlistat (Orlistat Impurity) structure

N-Desformyl N-Acetyl (S,S,R,S)-Orlistat (Orlistat Impurity)

CAS: 1356841-82-1

In Stock97%+

Enalapril EP Impurity A Maleate structure

Enalapril EP Impurity A Maleate

CAS: 1356932-13-2

In Stock97%+

Tacrolimus Impurity 25 structure

Tacrolimus Impurity 25

CAS: 1356932-17-6

In Stock97%+

Valganciclovir Impurity 14 structure

Valganciclovir Impurity 14

CAS: 1356932-18-7

In Stock97%+

Silodosin Carboxylic Acid Impurity structure

Silodosin Carboxylic Acid Impurity

CAS: 1357252-79-9

In Stock97%+

Palonosetron Impurity N64 structure

Palonosetron Impurity N64

CAS: 135729-66-7

In Stock97%+

Cyclosporin Impurity 6 structure

Cyclosporin Impurity 6

CAS: 1357559-51-3

In Stock97%+

Atorvastatin Impurity 87 structure

Atorvastatin Impurity 87

CAS: 1357600-18-0

In Stock97%+

rac-N-Demethyl Dimetindene Maleate (Dimetindene Impurity) structure

rac-N-Demethyl Dimetindene Maleate (Dimetindene Impurity)

CAS: 135784-57-5

In Stock97%+

Estratetraenol Impurity 4（3MeE2-8-en） structure

Estratetraenol Impurity 4（3MeE2-8-en）

CAS: 13587-68-3

In Stock97%+

Proguanil EP Impurity C structure

Proguanil EP Impurity C

CAS: 13590-88-0

In Stock97%+

Proguanil EP Impurity C Hydrochloride structure

Proguanil EP Impurity C Hydrochloride

CAS: 13590-98-2

In Stock97%+

Famotidine Impurity 3 structure

Famotidine Impurity 3

CAS: 13598-81-7

In Stock97%+

Ferulic Acid Impurity 15 structure

Ferulic Acid Impurity 15

CAS: 136055-64-6

In Stock97%+

Efinaconazole Impurity 27 structure

Efinaconazole Impurity 27

CAS: 136081-74-8

In Stock97%+

Glecaprevir Impurity 1 structure

Glecaprevir Impurity 1

CAS: 1360828-80-3

In Stock97%+

Hydrocortisone Impurity N2 structure

Hydrocortisone Impurity N2

CAS: 13609-63-7

In Stock97%+

Progesterone Impurity 26 structure

Progesterone Impurity 26

CAS: 13611-97-7

In Stock97%+

Cefazolin Impurity 39 structure

Cefazolin Impurity 39

CAS: 13616-37-0

In Stock97%+

Rotigotine Impurity 5 structure

Rotigotine Impurity 5

CAS: 136247-07-9

In Stock97%+

Pranlukast Impurity N1 structure

Pranlukast Impurity N1

CAS: 136450-11-8

In Stock97%+

Fosamprenavir Impurity 10 structure

Fosamprenavir Impurity 10

CAS: 136465-89-9

In Stock97%+

Saquinavir Mesilate - Impurity A structure

Saquinavir Mesilate - Impurity A

CAS: 136465-98-0

In Stock97%+

Mirabegron Impurity 29 structure

Mirabegron Impurity 29

CAS: 1365244-63-8

In Stock97%+

Docetaxel Impurity 42 structure

Docetaxel Impurity 42

CAS: 136561-53-0

In Stock97%+

Ondansetron Impurity 14 structure

Ondansetron Impurity 14

CAS: 1365727-07-6

In Stock97%+

Pravastatin EP Impurity G structure

Pravastatin EP Impurity G

CAS: 136590-28-8

In Stock97%+

Lurasidone Impurity 6 structure

Lurasidone Impurity 6

CAS: 1365987-23-0

In Stock97%+

Raloxifene Impurity 28 structure

Raloxifene Impurity 28

CAS: 13664-92-1

In Stock97%+

Flurbiprofen Impurity 27 structure

Flurbiprofen Impurity 27

CAS: 136649-30-4

In Stock97%+

Amlodipine Impurity 54 structure

Amlodipine Impurity 54

CAS: 136744-85-9

In Stock97%+

Baricitinib Impurity N3 structure

Baricitinib Impurity N3

CAS: 136823-41-1

In Stock97%+

Lemborexant Impurity N1 structure

Lemborexant Impurity N1

CAS: 1369767-24-7

In Stock97%+

Lemborexant impurity 01 structure

Lemborexant impurity 01

CAS: 1369768-29-5

In Stock97%+

Lemborexant impurity 02 structure

Lemborexant impurity 02

CAS: 1369769-35-6

In Stock97%+

Lopinavir Impurity 2 structure

Lopinavir Impurity 2

CAS: 1370045-08-1

In Stock97%+

Barloxavir impurity C718 structure

Barloxavir impurity C718

CAS: 1370250-38-6

In Stock97%+

Ritonavir Impurity 18 structure

Ritonavir Impurity 18

CAS: 1370406-80-6

In Stock97%+

Gadobutrol Impurity 82 structure

Gadobutrol Impurity 82

CAS: 137076-50-7

In Stock97%+

Afatinib Impurity 50 structure

Afatinib Impurity 50

CAS: 137131-09-0

In Stock97%+

Mitoxantrone EP Impurity D structure

Mitoxantrone EP Impurity D

CAS: 137132-70-8

In Stock90%

Atorvastatin EP Impurity F structure

Atorvastatin EP Impurity F

CAS: 1371615-56-3

In Stock97%+

Voriconazole Impurity 132 structure

Voriconazole Impurity 132

CAS: 137234-71-0

In Stock97%+

Voriconazole Impurity 5 structure

Voriconazole Impurity 5

CAS: 137234-75-4

In Stock97%+

Voriconazole Impurity 77 structure

Voriconazole Impurity 77

CAS: 137234-85-6

In Stock97%+

Rimegepant Impurity N1 structure

Rimegepant Impurity N1

CAS: 1373116-07-4

In Stock97%+

Thioctic Acid Impurity 21 structure

Thioctic Acid Impurity 21

CAS: 137314-40-0

In Stock>95%

Cabazitaxel Impurity 36 (Oxazolidine Protected) structure

Cabazitaxel Impurity 36 (Oxazolidine Protected)

CAS: 1373171-12-0

In Stock97%+

Norgestimate EP Impurity A structure

Norgestimate EP Impurity A

CAS: 13732-69-9

In Stock97%+

Domperidone Impurity 15 structure

Domperidone Impurity 15

CAS: 13733-33-0

In Stock97%+

Prasugrel Impurity 10 structure

Prasugrel Impurity 10

CAS: 1373350-58-3

In Stock97%+

Prasugrel Impurity 14 Maleate structure

Prasugrel Impurity 14 Maleate

CAS: 1373350-60-7

In Stock97%+

Prasugrel EP Impurity E Maleate Salt structure

Prasugrel EP Impurity E Maleate Salt

CAS: 1373350-61-8

In Stock97%+

Lamotrigine Impurity 15 structure

Lamotrigine Impurity 15

CAS: 1373393-59-9

In Stock97%+

Hydroxychloroquine Impurity 3 structure

Hydroxychloroquine Impurity 3

CAS: 137433-25-1

In Stock97%+

Bendamustine Nitro Isopropyl Ester Impurity structure

Bendamustine Nitro Isopropyl Ester Impurity

CAS: 1374784-01-6

In Stock97%+

Favipiravir Impurity 6 structure

Favipiravir Impurity 6

CAS: 1374986-27-2

In Stock97%+

Silodosin Impurity 20 structure

Silodosin Impurity 20

CAS: 1375180-28-1

In Stock97%+

Vildagliptin Impurity 42 structure

Vildagliptin Impurity 42

CAS: 137693-34-6

In Stock97%+

Atovaquone EP Impurity B (RC A) structure

Atovaquone EP Impurity B (RC A)

CAS: 137732-39-9

In Stock97%+

Articaine Impurity N21 structure

Articaine Impurity N21

CAS: 13781-65-2

In Stock97%+

Lenvatinib Impurity 93 structure

Lenvatinib Impurity 93

CAS: 1378260-39-9

In Stock97%+

Valsartan Impurity 53 structure

Valsartan Impurity 53

CAS: 137863-68-4

In Stock97%+

JWH-250 Impurity 2 (JWH 250 5-Hydroxyindole Metabolite) structure

JWH-250 Impurity 2 (JWH 250 5-Hydroxyindole Metabolite)

CAS: 1379604-67-7

In Stock97%+

Tolvaptan Impurity 6 structure

Tolvaptan Impurity 6

CAS: 137976-61-5

In Stock97%+

Mertansine Impurity 2 structure

Mertansine Impurity 2

CAS: 138148-59-1

In Stock97%+

Maytansinoid DM4 Impurity 6 structure

Maytansinoid DM4 Impurity 6

CAS: 138148-68-2

In Stock97%+

Thiazole Impurity 1 structure

Thiazole Impurity 1

CAS: 13816-21-2

In Stock97%+

Dabigatran Impurity 28 structure

Dabigatran Impurity 28

CAS: 1381853-11-7

In Stock97%+

Tetrabenazine Impurity C49 structure

Tetrabenazine Impurity C49

CAS: 1381929-92-5

In Stock97%+

Cisplatin Impurity 3 structure

Cisplatin Impurity 3

CAS: 13820-91-2

In Stock97%+

Azilsartan Impurity 76 structure

Azilsartan Impurity 76

CAS: 138320-11-3

In Stock97%+

Ulifloxacin Impurity 3 structure

Ulifloxacin Impurity 3

CAS: 138382-93-1

In Stock97%+

Ulifloxacin Impurity 2 structure

Ulifloxacin Impurity 2

CAS: 138382-95-3

In Stock97%+

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