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Pharmaceutical Impurity Reference Standards

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

Clomipramine Impurity 3 structure

Clomipramine Impurity 3

CAS: 79752-03-7

In Stock97%+

Clomipramine Impurity 4 structure

Clomipramine Impurity 4

CAS: 84803-67-8

In Stock97%+

Clonidine Impurity 1 structure

Clonidine Impurity 1

CAS: 21709-18-2

In Stock97%+

Clonidine Impurity 3 structure

Clonidine Impurity 3

CAS: 27806-81-1

In Stock97%+

Clonidine Impurity 5 structure

Clonidine Impurity 5

CAS: 39075-78-0

In Stock97%+

Cloperastine Impurity 5 structure

Cloperastine Impurity 5

CAS: 75842-85-2

In Stock97%+

Clopidogrel Impurity 26 structure

Clopidogrel Impurity 26

CAS: 43189-44-2

In Stock97%+

Clopidogrel Impurity 30 structure

Clopidogrel Impurity 30

CAS: 69061-17-2

In Stock97%+

Cloprostenol Impurity 3（15S-(±)-Cloprostenol） structure

Cloprostenol Impurity 3（15S-(±)-Cloprostenol）

CAS: 40665-93-8

In Stock97%+

Cloprostenol Impurity 4（5,6-trans-(±)-Cloprostenol） structure

Cloprostenol Impurity 4（5,6-trans-(±)-Cloprostenol）

CAS: 72029-43-7

In Stock97%+

Clorazepate EP Impurity C structure

Clorazepate EP Impurity C

CAS: 5606-55-3

In Stock97%+

Closantel EP Impurity F structure

Closantel EP Impurity F

CAS: 50274-07-2

In Stock97%+

Clotiazepam Impurity C17 structure

Clotiazepam Impurity C17

CAS: 33671-37-3

In Stock97%+

Clotiazepam Impurity 2 structure

Clotiazepam Impurity 2

CAS: 50509-09-6

In Stock97%+

Clotiazepam Impurity 3 structure

Clotiazepam Impurity 3

CAS: 50508-89-9

In Stock97%+

Clotiazepam Impurity 4 structure

Clotiazepam Impurity 4

CAS: 50508-60-6

In Stock97%+

Clotrimazole Impurity 1 structure

Clotrimazole Impurity 1

CAS: 968-39-8

In Stock97%+

Clotrimazole Impurity 12 structure

Clotrimazole Impurity 12

CAS: 4532-96-1

In Stock97%+

Clotrimazole Impurity 13 structure

Clotrimazole Impurity 13

CAS: 7098-07-9

In Stock97%+

Clotrimazole Impurity 18 structure

Clotrimazole Impurity 18

CAS: 35203-44-2

In Stock97%+

Clotrimazole Impurity 20 structure

Clotrimazole Impurity 20

CAS: 3005-50-3

In Stock97%+

Clotrimazole Impurity 9 structure

Clotrimazole Impurity 9

CAS: 23593-68-2

In Stock97%+

Clotrimazole TRAM-34 Impurity structure

Clotrimazole TRAM-34 Impurity

CAS: 289905-88-0

In Stock97%+

Cloxacillin Sodium Impurity 6 structure

Cloxacillin Sodium Impurity 6

CAS: 83817-50-9

In Stock97%+

Cloxazolam Impurity B structure

Cloxazolam Impurity B

CAS: 24234-92-2

In Stock97%+

Clozapine Impurity 1 structure

Clozapine Impurity 1

CAS: 5933-35-7

In Stock97%+

Clozapine Impurity 1 structure

Clozapine Impurity 1

CAS: 69414-55-7

In Stock97%+

Cocaine EP Impurity A structure

Cocaine EP Impurity A

CAS: 50763-20-7

In Stock97%+

Cocaine EP Impurity B structure

Cocaine EP Impurity B

CAS: 490-17-5

In Stock97%+

Cocaine EP Impurity C structure

Cocaine EP Impurity C

CAS: 490-15-3

In Stock97%+

Coclaurine Impurity 6 structure

Coclaurine Impurity 6

CAS: 3472-22-8

In Stock97%+

Codeine EP Impurity A structure

Codeine EP Impurity A

CAS: 2859-16-7

In Stock97%+

Codeinone Impurity 1 structure

Codeinone Impurity 1

CAS: 6055-06-7

In Stock97%+

Colchicine Impurity 4 structure

Colchicine Impurity 4

CAS: 57866-21-4

In Stock97%+

Colchicine Racemic Mixture Impurity structure

Colchicine Racemic Mixture Impurity

CAS: 54192-66-4

In Stock97%+

Colesevelam Bromoquat Impurity structure

Colesevelam Bromoquat Impurity

CAS: 32765-81-4

In Stock97%+

Colesevelam Impurity 5 structure

Colesevelam Impurity 5

CAS: 21291-99-6

In Stock97%+

Copanlisib impurity A structure

Copanlisib impurity A

CAS: 2132943-82-7

In Stock97%+

Copanlisib impurity B structure

Copanlisib impurity B

CAS: 2132943-81-6

In Stock97%+

Cortexolone Impurity A structure

Cortexolone Impurity A

CAS: 853-27-0

In Stock97%+

Corticosterone Impurity 3 structure

Corticosterone Impurity 3

CAS: 2681-57-4

In Stock97%+

Cortisol Impurity 4 structure

Cortisol Impurity 4

CAS: 7050-24-0

In Stock97%+

Crisaborole Impurity 44 structure

Crisaborole Impurity 44

CAS: 90178-73-7

In Stock97%+

Crisaborole Impurity 6 structure

Crisaborole Impurity 6

CAS: 28547-28-6

In Stock97%+

Crizotinib Impurity 01 structure

Crizotinib Impurity 01

CAS: 877399-51-4

In Stock97%+

Crotamiton Impurity 11 structure

Crotamiton Impurity 11

CAS: 817-76-5

In Stock97%+

Cyclophosphamide Impurity 12 structure

Cyclophosphamide Impurity 12

CAS: 78149-83-4

In Stock97%+

Cycloserine Impurity 4 structure

Cycloserine Impurity 4

CAS: 32345-44-1

In Stock97%+

Cycloserine Impurity 7 structure

Cycloserine Impurity 7

CAS: 50975-79-6

In Stock97%+

Cyclosporin Impurity 16（Dihydrocyclosporin H） structure

Cyclosporin Impurity 16（Dihydrocyclosporin H）

CAS: 83602-88-4

In Stock97%+

Cyclosporin Impurity N33 structure

Cyclosporin Impurity N33

CAS: 59865-23-5

In Stock97%+

Cyclovirobuxine Impurity 1 structure

Cyclovirobuxine Impurity 1

CAS: 6908-25-4

In Stock97%+

Cyhalothrin Impurity 1 structure

Cyhalothrin Impurity 1

CAS: 76703-65-6

In Stock97%+

Cyhalothrin Impurity 15 structure

Cyhalothrin Impurity 15

CAS: 71962-66-8

In Stock97%+

Cyhalothrin Impurity 2 structure

Cyhalothrin Impurity 2

CAS: 74609-46-4

In Stock97%+

Cyhalothrin Impurity 5 structure

Cyhalothrin Impurity 5

CAS: 76703-63-4

In Stock97%+

Cypermethrin Impurity 2 (Mixture Of Diastereomers) structure

Cypermethrin Impurity 2 (Mixture Of Diastereomers)

CAS: 61732-64-7

In Stock97%+

Cypermethrin Impurity 6 (Mixture of Diastereomers) structure

Cypermethrin Impurity 6 (Mixture of Diastereomers)

CAS: 71698-60-7

In Stock97%+

Cyproheptadine Impurity 3 structure

Cyproheptadine Impurity 3

CAS: 54191-03-6

In Stock97%+

Cyproterone Acetate EP Impurity A structure

Cyproterone Acetate EP Impurity A

CAS: 2701-50-0

In Stock97%+

Cyproterone Acetate EP Impurity G structure

Cyproterone Acetate EP Impurity G

CAS: 23814-84-8

In Stock97%+

Cyproterone Acetate Impurity 2 structure

Cyproterone Acetate Impurity 2

CAS: 65423-26-9

In Stock97%+

Cysteamine Impurity 1 structure

Cysteamine Impurity 1

CAS: 2097678-00-5

In Stock97%+

Cysteamine Impurity 2 structure

Cysteamine Impurity 2

CAS: 51859-63-3

In Stock97%+

Cysteine Impurity 8 structure

Cysteine Impurity 8

CAS: 851189-30-5

In Stock97%+

Cytarabine Impurity 17 structure

Cytarabine Impurity 17

CAS: 69321-95-5

In Stock97%+

Cytarabine Impurity 18 (Cytidine N3-Oxide) structure

Cytarabine Impurity 18 (Cytidine N3-Oxide)

CAS: 3310-47-2

In Stock97%+

Cytarabine Impurity 7 structure

Cytarabine Impurity 7

CAS: 32659-31-7

In Stock97%+

Dabigatran Impurity 13 structure

Dabigatran Impurity 13

CAS: 255706-13-9

In Stock97%+

Dabigatran Etexilate Impurity 2 structure

Dabigatran Etexilate Impurity 2

CAS: 333350-60-0

In Stock97%+

Dabigatran Etexilate Impurity 55 structure

Dabigatran Etexilate Impurity 55

CAS: 638-28-8

In Stock97%+

Dabigatran Impurity 131 structure

Dabigatran Impurity 131

CAS: 429658-95-7

In Stock97%+

Dabigatran Methyl Ester Impurity structure

Dabigatran Methyl Ester Impurity

CAS: 771459-37-1

In Stock97%+

Dacarbazine Impurity 1 structure

Dacarbazine Impurity 1

CAS: 63907-29-9

In Stock97%+

Danazol Impurity 3 structure

Danazol Impurity 3

CAS: 80651-65-6

In Stock97%+

Danazol Impurity 5 structure

Danazol Impurity 5

CAS: 875218-97-6

In Stock97%+

Dantrolene Related Compound B structure

Dantrolene Related Compound B

CAS: 57268-33-4

In Stock97%+

Dapagliflozin Impurity 102 structure

Dapagliflozin Impurity 102

CAS: 333361-49-2

In Stock97%+

Dapagliflozin Impurity 152 structure

Dapagliflozin Impurity 152

CAS: 32384-64-8

In Stock97%+

Dapagliflozin Impurity 159 structure

Dapagliflozin Impurity 159

CAS: 936-08-3

In Stock97%+

Dapagliflozin Impurity 163 structure

Dapagliflozin Impurity 163

CAS: 527-09-3

In Stock97%+

Dapagliflozin Impurity 74 structure

Dapagliflozin Impurity 74

CAS: 5032-11-1

In Stock97%+

Dapagliflozin Impurity 89 structure

Dapagliflozin Impurity 89

CAS: 5032-10-0

In Stock97%+

Dapagliflozin Impurity 91 structure

Dapagliflozin Impurity 91

CAS: 55716-54-6

In Stock97%+

Dapagliflozin Impurity 94 structure

Dapagliflozin Impurity 94

CAS: 83466-88-0

In Stock97%+

Dapoxetine Impurity 100 structure

Dapoxetine Impurity 100

CAS: 69734-01-6

In Stock97%+

Dapoxetine Impurity 49 structure

Dapoxetine Impurity 49

CAS: 54108-51-9

In Stock97%+

Dapoxetine Impurity N1 structure

Dapoxetine Impurity N1

CAS: 82769-76-4

In Stock97%+

Dapoxetine Impurity 59 structure

Dapoxetine Impurity 59

CAS: 22422-19-1

In Stock97%+

Dapoxetine Impurity N3 structure

Dapoxetine Impurity N3

CAS: 4436-22-0

In Stock97%+

Dapoxetine Impurity 77 structure

Dapoxetine Impurity 77

CAS: 526-94-3

In Stock97%+

Dapoxetine Impurity 77 structure

Dapoxetine Impurity 77

CAS: 85608-26-0

In Stock97%+

Dapoxetine Impurity 88 structure

Dapoxetine Impurity 88

CAS: 871351-43-8

In Stock97%+

Dapsone Impurity 13 structure

Dapsone Impurity 13

CAS: 599-61-1

In Stock97%+

Dapsone Impurity 22 structure

Dapsone Impurity 22

CAS: 64896-96-4

In Stock97%+

Dapsone Impurity 23 structure

Dapsone Impurity 23

CAS: 34262-29-8

In Stock97%+

Dapsone Impurity 25 structure

Dapsone Impurity 25

CAS: 32631-31-5

In Stock97%+

Dapsone EP Impurity A structure

Dapsone EP Impurity A

CAS: 25963-47-7

In Stock>95%

Dapsone EP Impurity D structure

Dapsone EP Impurity D

CAS: 27147-69-9

In Stock>95%

Dapsone Impurity 9 structure

Dapsone Impurity 9

CAS: 5461-23-4

In Stock97%+

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