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Pharmaceutical Impurity Reference Standards

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

Lacosamide EP Impurity E structure

Lacosamide EP Impurity E

CAS: 374088-96-7

In Stock97%+

Lacosamide Impurity 5 structure

Lacosamide Impurity 5

CAS: 209804-17-1

In Stock97%+

Lactic Acid Impurity 5 (L-2-Phospholactic Acid) structure

Lactic Acid Impurity 5 (L-2-Phospholactic Acid)

CAS: 28238-07-5

In Stock97%+

Lactitol Impurity 2 (3-O-beta-D-galactopyranosyl-D-glucose) structure

Lactitol Impurity 2 (3-O-beta-D-galactopyranosyl-D-glucose)

CAS: 28447-38-3

In Stock97%+

Lafutidine Impurity 12 structure

Lafutidine Impurity 12

CAS: 41372-34-3

In Stock97%+

Lamivudine Impurity 11 structure

Lamivudine Impurity 11

CAS: 200396-19-6

In Stock97%+

Lamivudine Impurity 17 structure

Lamivudine Impurity 17

CAS: 72702-38-6

In Stock97%+

Lamivudine Impurity 19 structure

Lamivudine Impurity 19

CAS: 953806-67-2

In Stock97%+

Lamivudine Impurity 5 structure

Lamivudine Impurity 5

CAS: 2032-34-0

In Stock97%+

Lamotrigine 6-(3,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine Impurity structure

Lamotrigine 6-(3,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine Impurity

CAS: 36518-85-1

In Stock97%+

Lamotrigine EP Impurity B and Lamotrigine EP Impurity C structure

Lamotrigine EP Impurity B and Lamotrigine EP Impurity C

CAS: 84689-20-3

In Stock97%+

Lamotrigine Impurity 10 structure

Lamotrigine Impurity 10

CAS: 77668-43-0

In Stock97%+

Lamotrigine Impurity 16 structure

Lamotrigine Impurity 16

CAS: 2250242-15-8

In Stock97%+

Lamotrigine Impurity 17 structure

Lamotrigine Impurity 17

CAS: 887354-37-2

In Stock97%+

Lamotrigine Impurity 2 structure

Lamotrigine Impurity 2

CAS: 94266-27-0

In Stock97%+

Lamotrigine Impurity 7 structure

Lamotrigine Impurity 7

CAS: 31273-66-2

In Stock97%+

Landiolol Impurity 6 structure

Landiolol Impurity 6

CAS: 69630-16-6

In Stock97%+

Landiolol Impurity 60 structure

Landiolol Impurity 60

CAS: 50765-70-3

In Stock97%+

Lansoprazole Impurity 19 structure

Lansoprazole Impurity 19

CAS: 4377-43-9

In Stock97%+

Lansoprazole Impurity 26 (5-Hydroxybenzimidazole) structure

Lansoprazole Impurity 26 (5-Hydroxybenzimidazole)

CAS: 41292-65-3

In Stock97%+

Lansoprazole Impurity 36 structure

Lansoprazole Impurity 36

CAS: 58536-71-3

In Stock97%+

Lansoprazole Impurity 4 structure

Lansoprazole Impurity 4

CAS: 59886-84-9

In Stock97%+

Lansoprazole Impurity 48 structure

Lansoprazole Impurity 48

CAS: 27231-33-0

In Stock97%+

L-Arabinose Impurity 1 structure

L-Arabinose Impurity 1

CAS: 6014-42-2

In Stock97%+

L-Arabinose Impurity 2 structure

L-Arabinose Impurity 2

CAS: 38029-69-5

In Stock97%+

L-Arabinose Impurity 3 structure

L-Arabinose Impurity 3

CAS: 37388-49-1

In Stock97%+

L-Arabinose Impurity 5 structure

L-Arabinose Impurity 5

CAS: 20074-49-1

In Stock97%+

Larotrectinib Impurity 2 structure

Larotrectinib Impurity 2

CAS: 29274-24-6

In Stock97%+

Lasofoxifene Impurity 4 structure

Lasofoxifene Impurity 4

CAS: 869006-52-0

In Stock97%+

Lasofoxifene Impurity 5 structure

Lasofoxifene Impurity 5

CAS: 308812-06-8

In Stock97%+

Latamoxef Impurity N1 structure

Latamoxef Impurity N1

CAS: 79120-38-0

In Stock97%+

Latanoprost Enol Impurity structure

Latanoprost Enol Impurity

CAS: 41639-73-0

In Stock97%+

Latanoprost Impurity 6 structure

Latanoprost Impurity 6

CAS: 352276-28-9

In Stock97%+

Leflunomide Impurity 2 structure

Leflunomide Impurity 2

CAS: 827029-20-9

In Stock97%+

Leflunomide Impurity 3 structure

Leflunomide Impurity 3

CAS: 2772495-33-5

In Stock97%+

Leflunomide Impurity 7 structure

Leflunomide Impurity 7

CAS: 88511-40-4

In Stock97%+

Lenalidomide Impurity 19 structure

Lenalidomide Impurity 19

CAS: 366452-97-3

In Stock97%+

Lenalidomide Impurity 23 structure

Lenalidomide Impurity 23

CAS: 52090-24-1

In Stock97%+

Lenalidomide Impurity 24 structure

Lenalidomide Impurity 24

CAS: 59434-19-4

In Stock97%+

Lenalidomide Impurity 26 structure

Lenalidomide Impurity 26

CAS: 85535-45-1

In Stock97%+

Lenalidomide Impurity 33 structure

Lenalidomide Impurity 33

CAS: 22785-43-9

In Stock97%+

Lenalidomide Impurity 48 structure

Lenalidomide Impurity 48

CAS: 366452-98-4

In Stock97%+

Lenvatinib Impurity 109 structure

Lenvatinib Impurity 109

CAS: 2852-69-9

In Stock97%+

Lenvatinib Impurity 36 structure

Lenvatinib Impurity 36

CAS: 6657-04-1

In Stock97%+

Lenvatinib Impurity 49 structure

Lenvatinib Impurity 49

CAS: 28017-92-7

In Stock97%+

Lenvatinib Impurity 69 structure

Lenvatinib Impurity 69

CAS: 40140-91-8

In Stock97%+

Lenvatinib Impurity 70 structure

Lenvatinib Impurity 70

CAS: 56962-03-9

In Stock97%+

Lenvatinib Impurity 80 structure

Lenvatinib Impurity 80

CAS: 6558-73-2

In Stock97%+

Lenvatinib Impurity N1 structure

Lenvatinib Impurity N1

CAS: 28443-57-4

In Stock97%+

Lercanidipine Impurity 11 structure

Lercanidipine Impurity 11

CAS: 3339-07-9

In Stock97%+

Lercanidipine Impurity 5 structure

Lercanidipine Impurity 5

CAS: 88712-56-5

In Stock97%+

Lercanidipine Impurity 52 structure

Lercanidipine Impurity 52

CAS: 75196-00-8

In Stock97%+

Lercanidipine Impurity 6 structure

Lercanidipine Impurity 6

CAS: 20017-68-9

In Stock97%+

Lesinurad Impurity 10 structure

Lesinurad Impurity 10

CAS: 878671-99-9

In Stock97%+

Lesinurad Impurity 12 structure

Lesinurad Impurity 12

CAS: 878671-96-6

In Stock97%+

Lesinurad Impurity 15 structure

Lesinurad Impurity 15

CAS: 25033-19-6

In Stock97%+

Lesinurad Impurity 34 structure

Lesinurad Impurity 34

CAS: 878671-95-5

In Stock97%+

Leuprolide Impurity 4 structure

Leuprolide Impurity 4

CAS: 267878-61-5

In Stock97%+

Leuprorelin Impurity 19 structure

Leuprorelin Impurity 19

CAS: 38482-70-1

In Stock97%+

Levamisole 4-Hydroxy Impurity structure

Levamisole 4-Hydroxy Impurity

CAS: 69359-04-2

In Stock97%+

Levamisole 4-Nitro Impurity structure

Levamisole 4-Nitro Impurity

CAS: 76497-81-9

In Stock97%+

Levamisole Impurity B structure

Levamisole Impurity B

CAS: 20406-02-4

In Stock97%+

Levetiracetam Impurity 50 structure

Levetiracetam Impurity 50

CAS: 68412-40-8

In Stock97%+

Levetiracetam Impurity 6 structure

Levetiracetam Impurity 6

CAS: 4385-97-1

In Stock97%+

Levobunolol Hydrochloride EP Impurity A structure

Levobunolol Hydrochloride EP Impurity A

CAS: 38947-37-4

In Stock97%+

Levocabastine EP Impurity H structure

Levocabastine EP Impurity H

CAS: 56326-98-8

In Stock97%+

Levocabastine Impurity 1 structure

Levocabastine Impurity 1

CAS: 80185-65-5

In Stock97%+

Levocabastine Impurity 11 structure

Levocabastine Impurity 11

CAS: 577036-07-8

In Stock97%+

Levocabastine Impurity 4 structure

Levocabastine Impurity 4

CAS: 25115-74-6

In Stock97%+

Levocarnitine EP Impurity B structure

Levocarnitine EP Impurity B

CAS: 5394-83-2

In Stock97%+

Levocarnitine Impurity 50 structure

Levocarnitine Impurity 50

CAS: 5852-97-1

In Stock97%+

Levocetirizine Impurity 9 structure

Levocetirizine Impurity 9

CAS: 942283-97-8

In Stock97%+

Levocetrizine Imine Impurity structure

Levocetrizine Imine Impurity

CAS: 2362-79-0

In Stock97%+

Rac-Levodopa EP Impurity A structure

Rac-Levodopa EP Impurity A

CAS: 21373-30-8

In Stock97%+

Levodopa Impurity N2 structure

Levodopa Impurity N2

CAS: 55-59-4

In Stock97%+

Levodopa Impurity 8 structure

Levodopa Impurity 8

CAS: 64192-68-3

In Stock97%+

Levodopa Impurity 9 structure

Levodopa Impurity 9

CAS: 2901-78-2

In Stock97%+

Levodropropizine - Impurity B (Hydrochloride Salt) structure

Levodropropizine - Impurity B (Hydrochloride Salt)

CAS: 2210-93-7

In Stock97%+

Levodropropizine Impurity 16 structure

Levodropropizine Impurity 16

CAS: 201810-02-8

In Stock97%+

Levofloxacin Impurity 16 structure

Levofloxacin Impurity 16

CAS: 54783-72-1

In Stock97%+

Levofloxacin Impurity 17 structure

Levofloxacin Impurity 17

CAS: 2040-44-0

In Stock97%+

Levomepromazine Maleate EP Impurity B structure

Levomepromazine Maleate EP Impurity B

CAS: 7606-29-3

In Stock97%+

Levonorgestrel Impurity N1 structure

Levonorgestrel Impurity N1

CAS: 7443-72-3

In Stock97%+

Levonorgestrel Impurity 2 structure

Levonorgestrel Impurity 2

CAS: 850-92-0

In Stock97%+

Levonorgestrel Impurity 32 structure

Levonorgestrel Impurity 32

CAS: 51773-49-0

In Stock97%+

Levonorgestrel Impurity 4 (Ethylmetrienone) structure

Levonorgestrel Impurity 4 (Ethylmetrienone)

CAS: 848-04-4

In Stock97%+

Levosimendan Impurity 14 structure

Levosimendan Impurity 14

CAS: 36725-41-4

In Stock97%+

Levosimendan Impurity N2 structure

Levosimendan Impurity N2

CAS: 36725-26-5

In Stock97%+

Levothyroxine Impurity 16 structure

Levothyroxine Impurity 16

CAS: 92905-78-7

In Stock97%+

Levothyroxine Impurity 16 structure

Levothyroxine Impurity 16

CAS: 4192-14-7

In Stock97%+

Levothyroxine Impurity 20 structure

Levothyroxine Impurity 20

CAS: 7069-47-8

In Stock97%+

Levothyroxine Impurity 4 structure

Levothyroxine Impurity 4

CAS: 910907-23-2

In Stock97%+

Levothyroxine Impurity N90 structure

Levothyroxine Impurity N90

CAS: 30804-52-5

In Stock97%+

Aspartic Acid EP Impurity C Magnesium Salt Hydrobromide structure

Aspartic Acid EP Impurity C Magnesium Salt Hydrobromide

CAS: 53459-38-4

In Stock97%+

Lidocaine Impurity 16 structure

Lidocaine Impurity 16

CAS: 42459-27-8

In Stock97%+

Lidocaine Impurity 57 structure

Lidocaine Impurity 57

CAS: 52662-13-2

In Stock97%+

Lidocaine Impurity 6 structure

Lidocaine Impurity 6

CAS: 64585-18-8

In Stock97%+

Linagliptin Impurity 51 structure

Linagliptin Impurity 51

CAS: 6640-59-1

In Stock97%+

Linagliptin Impurity 80 (2-Piperidinamine) structure

Linagliptin Impurity 80 (2-Piperidinamine)

CAS: 45505-62-2

In Stock97%+

Linalool Impurity 1 structure

Linalool Impurity 1

CAS: 56752-50-2

In Stock97%+

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