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Pharmaceutical Impurity Reference Standards

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

Sumatriptan aminophenyl Impurity C05 structure

Sumatriptan aminophenyl Impurity C05

CAS: 109903-35-7

In Stock97%+

Clopidogrel Impurity 42 structure

Clopidogrel Impurity 42

CAS: 109904-36-1

In Stock97%+

Atorvastatin Impurity 76 structure

Atorvastatin Impurity 76

CAS: 1099474-28-8

In Stock97%+

Duloxetine Impurity 9 structure

Duloxetine Impurity 9

CAS: 110-14-5

In Stock97%+

Atovaquone Impurity 9 structure

Atovaquone Impurity 9

CAS: 1100053-58-4

In Stock97%+

Cefepime EP Impurity E structure

Cefepime EP Impurity E

CAS: 110026-16-9

In Stock97%+

Atracurium Impurity 7 structure

Atracurium Impurity 7

CAS: 1100676-15-0

In Stock97%+

Tryptophol Impurity 1 structure

Tryptophol Impurity 1

CAS: 110139-35-0

In Stock97%+

Vemurafenib Impurity 2 structure

Vemurafenib Impurity 2

CAS: 1103234-56-5

In Stock97%+

Tepotinib Impurity N54 structure

Tepotinib Impurity N54

CAS: 1103506-79-1

In Stock97%+

Exatecan Impurity 1 structure

Exatecan Impurity 1

CAS: 110351-91-2

In Stock97%+

Omeprazole Impurity 63 structure

Omeprazole Impurity 63

CAS: 1105933-54-7

In Stock97%+

Sulfinpyrazone impurity A CRS structure

Sulfinpyrazone impurity A CRS

CAS: 1106-50-9

In Stock97%+

Elagolix Impurity 6 structure

Elagolix Impurity 6

CAS: 110611-91-1

In Stock97%+

Ondansetron Impurity N47 structure

Ondansetron Impurity N47

CAS: 110708-17-3

In Stock>95%

Lansoprazole Impurity 32 structure

Lansoprazole Impurity 32

CAS: 110763-56-9

In Stock97%+

Fluorofenidone Impurity 2 structure

Fluorofenidone Impurity 2

CAS: 1107650-68-9

In Stock97%+

rac-Levonorgestrel EP Impurity A structure

rac-Levonorgestrel EP Impurity A

CAS: 110785-09-6

In Stock97%+

Atorvastatin EP Impurity E structure

Atorvastatin EP Impurity E

CAS: 110862-48-1（Relative）

In Stock97%+

Metirosine Impurity 2 HCl structure

Metirosine Impurity 2 HCl

CAS: 1109233-43-3

In Stock97%+

Butenafine Impurity 8 structure

Butenafine Impurity 8

CAS: 110931-65-2

In Stock97%+

Flutriafol Impurity D structure

Flutriafol Impurity D

CAS: 110933-21-6

In Stock97%+

Sodium Gualenate Impurity 3 HCl structure

Sodium Gualenate Impurity 3 HCl

CAS: 110971-81-8

In Stock97%+

Semaglutide impurity 29 structure

Semaglutide impurity 29

CAS: 110990-08-4

In Stock97%+

Ferulic Acid Impurity 13 structure

Ferulic Acid Impurity 13

CAS: 110993-57-2

In Stock97%+

Pemafibrate Impurity 5 structure

Pemafibrate Impurity 5

CAS: 110994-89-3

In Stock97%+

Propiophenone Impurity 2 structure

Propiophenone Impurity 2

CAS: 111000-54-5

In Stock97%+

Terazosin EP Impurity H HCl structure

Terazosin EP Impurity H HCl

CAS: 111013-28-6

In Stock97%+

Perindopril Impurity 1 HCl structure

Perindopril Impurity 1 HCl

CAS: 111013-52-6

In Stock97%+

Clethodim Impurity 4 structure

Clethodim Impurity 4

CAS: 111031-51-7

In Stock97%+

Prilocaine Impurity C56 structure

Prilocaine Impurity C56

CAS: 111057-88-6

In Stock97%+

Lusutrombopag Impurity N3 structure

Lusutrombopag Impurity N3

CAS: 1110767-89-9

In Stock97%+

Lusutrombopag Impurity N1 structure

Lusutrombopag Impurity N1

CAS: 1110767-96-8

In Stock97%+

Lusutrombopag Impurity N4 structure

Lusutrombopag Impurity N4

CAS: 1110767-98-0

In Stock97%+

Rivastigmine Benzyl Impurity structure

Rivastigmine Benzyl Impurity

CAS: 1111083-50-1

In Stock97%+

Tobramycin Impurity N2 structure

Tobramycin Impurity N2

CAS: 111170-72-0

In Stock97%+

Cinacalcet Impurity 65 structure

Cinacalcet Impurity 65

CAS: 111171-94-9

In Stock97%+

Diltiazem EP Impurity A HCl structure

Diltiazem EP Impurity A HCl

CAS: 111188-71-7(free base)

In Stock97%+

Telmisartan Impurity 2 structure

Telmisartan Impurity 2

CAS: 1113-26-4

In Stock97%+

Nifedipine EP Impurity C (E-Isomer) structure

Nifedipine EP Impurity C (E-Isomer)

CAS: 111304-29-1

In Stock97%+

Nitrendipine Impurity 3 structure

Nitrendipine Impurity 3

CAS: 111304-30-4

In Stock97%+

Lercanidipine Impurity 19 structure

Lercanidipine Impurity 19

CAS: 111304-32-6

In Stock97%+

Cilastatin Impurity 15 structure

Cilastatin Impurity 15

CAS: 1114-50-7

In Stock97%+

Nitrosamines Impurity 34 structure

Nitrosamines Impurity 34

CAS: 1116-82-1

In Stock97%+

Clofarabine Impurity 8 structure

Clofarabine Impurity 8

CAS: 111615-20-4

In Stock97%+

Rigosertib Impurity 5 structure

Rigosertib Impurity 5

CAS: 1116229-63-0

In Stock97%+

Biotin Impurity C51 structure

Biotin Impurity C51

CAS: 111822-45-8

In Stock97%+

Capecitabine Impurity 11 structure

Capecitabine Impurity 11

CAS: 111878-21-8

In Stock97%+

Clopidogrel Impurity 48 structure

Clopidogrel Impurity 48

CAS: 111954-31-5

In Stock97%+

Sofosbuvir Impurity 98 structure

Sofosbuvir Impurity 98

CAS: 111955-47-6

In Stock97%+

Cefepime EP Impurity D Potassium Salt structure

Cefepime EP Impurity D Potassium Salt

CAS: 112097-97-9

In Stock97%+

N-Methylpyrrolidone EP Impurity H structure

N-Methylpyrrolidone EP Impurity H

CAS: 1121-07-9

In Stock97%+

Tamsulosin EP Impurity B HCl structure

Tamsulosin EP Impurity B HCl

CAS: 112101-75-4

In Stock97%+

Benazepril EP Impurity D structure

Benazepril EP Impurity D

CAS: 112110-48-2

In Stock97%+

Olaquindox Impurity 5 structure

Olaquindox Impurity 5

CAS: 112158-56-2

In Stock97%+

Penbutolol EP Impurity A structure

Penbutolol EP Impurity A

CAS: 112160-87-9

In Stock97%+

Gadobutrol Impurity 37 (Cyclen Disulfate) structure

Gadobutrol Impurity 37 (Cyclen Disulfate)

CAS: 112193-77-8

In Stock97%+

Tamsulosin Impurity 32 structure

Tamsulosin Impurity 32

CAS: 112244-38-9

In Stock97%+

Ornidazole Impurity 41 structure

Ornidazole Impurity 41

CAS: 112258-56-7

In Stock97%+

Thiamine Impurity 54 structure

Thiamine Impurity 54

CAS: 1124-01-2

In Stock97%+

Brivaracetam Impurity 23 structure

Brivaracetam Impurity 23

CAS: 112459-79-7

In Stock97%+

Moexipril Impurity 1 structure

Moexipril Impurity 1

CAS: 112468-23-2

In Stock97%+

Nintedanib Impurity 19 structure

Nintedanib Impurity 19

CAS: 1125-88-8

In Stock97%+

Pinaverium Bromide Impurity 10 structure

Pinaverium Bromide Impurity 10

CAS: 1126385-20-3

In Stock97%+

Alfacalcidol impurity 01 structure

Alfacalcidol impurity 01

CAS: 112670-85-6

In Stock97%+

Esmolol Impurity N2 structure

Esmolol Impurity N2

CAS: 112805-58-0

In Stock97%+

Propranolol Chloro Impurity structure

Propranolol Chloro Impurity

CAS: 112805-69-3

In Stock97%+

Midazolam EP Impurity I structure

Midazolam EP Impurity I

CAS: 112811-67-3

In Stock97%+

Calcipotriol - Impurity E structure

Calcipotriol - Impurity E

CAS: 112849-14-6

In Stock97%+

Bambuterol EP Impurity D (Mixture of Enantiomers) structure

Bambuterol EP Impurity D (Mixture of Enantiomers)

CAS: 112935-93-0

In Stock97%+

Phenylpropanolamine Impurity 4 structure

Phenylpropanolamine Impurity 4

CAS: 1130-06-9

In Stock97%+

Cinacalcet Impurity 66 structure

Cinacalcet Impurity 66

CAS: 113048-69-4

In Stock97%+

Cabozantinib Impurity N2 structure

Cabozantinib Impurity N2

CAS: 113136-79-1

In Stock97%+

Glucose - Impurity C structure

Glucose - Impurity C

CAS: 113158-51-3

In Stock97%+

Imatinib Impurity 48 structure

Imatinib Impurity 48

CAS: 1131605-15-6

In Stock97%+

Ivabradine Impurity 25 HCl structure

Ivabradine Impurity 25 HCl

CAS: 1132079-01-6

In Stock97%+

Levofloxacin Impurity 38 structure

Levofloxacin Impurity 38

CAS: 113211-53-3

In Stock97%+

Ranitidine Impurity 10 structure

Ranitidine Impurity 10

CAS: 113224-25-2

In Stock97%+

Trimetazidine Impurity 5 structure

Trimetazidine Impurity 5

CAS: 1133-49-9

In Stock97%+

Gliquidone Impurity 8 structure

Gliquidone Impurity 8

CAS: 1133-54-6

In Stock97%+

Tiamulin EP Impurity E structure

Tiamulin EP Impurity E

CAS: 113323-39-0

In Stock97%+

Rivaroxaban Impurity 74 structure

Rivaroxaban Impurity 74

CAS: 113471-08-2

In Stock97%+

Haloperidol Decanoate EP Impurity H structure

Haloperidol Decanoate EP Impurity H

CAS: 1134807-34-3

In Stock97%+

Cinacalcet Impurity 56 structure

Cinacalcet Impurity 56

CAS: 1135-14-4

In Stock97%+

Lidocaine EP Impurity E Hydrochloride structure

Lidocaine EP Impurity E Hydrochloride

CAS: 1135231-62-7

In Stock97%+

Rizatriptan Impurity 4 structure

Rizatriptan Impurity 4

CAS: 1135479-41-2

In Stock97%+

Gliquidone Impurity 7 structure

Gliquidone Impurity 7

CAS: 1136-01-2

In Stock97%+

Pregabalin Impurity 29 structure

Pregabalin Impurity 29

CAS: 1136478-28-8

In Stock97%+

Cefepime Impurity C56 structure

Cefepime Impurity C56

CAS: 113703-50-7

In Stock97%+

Favipiravir Impurity 17 structure

Favipiravir Impurity 17

CAS: 1137606-76-8

In Stock97%+

Bendamustine Impurity 7 structure

Bendamustine Impurity 7

CAS: 1138238-08-0

In Stock97%+

Olopatadine Impurity N3 structure

Olopatadine Impurity N3

CAS: 113835-76-0

In Stock97%+

Brivudine Impurity 15 structure

Brivudine Impurity 15

CAS: 113890-35-0

In Stock97%+

Brivudine Impurity 16 structure

Brivudine Impurity 16

CAS: 113890-38-3

In Stock97%+

Nintedanib Impurity N8 structure

Nintedanib Impurity N8

CAS: 1139458-48-2

In Stock97%+

Amlodipine Impurity 71 structure

Amlodipine Impurity 71

CAS: 114011-50-6

In Stock97%+

Ceftibuten Impurity 19 structure

Ceftibuten Impurity 19

CAS: 1140311-29-0

In Stock97%+

Carprofen Impurity 1 structure

Carprofen Impurity 1

CAS: 114041-33-7

In Stock97%+

Carprofen Impurity 3 structure

Carprofen Impurity 3

CAS: 114041-34-8

In Stock97%+

Carprofen Impurity 2 structure

Carprofen Impurity 2

CAS: 114041-35-9

In Stock97%+

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