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Pharmaceutical Impurity Reference Standards

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

Bromhexine Impurity 22 structure

Bromhexine Impurity 22

CAS: 114059-99-3

In Stock97%+

Fosamprenavir Impurity 4 structure

Fosamprenavir Impurity 4

CAS: 114088-58-3

In Stock97%+

Penehyclidine Impurity 9 ((R,R)-Penehyclidine) structure

Penehyclidine Impurity 9 ((R,R)-Penehyclidine)

CAS: 114121-68-5

In Stock97%+

Atomoxetine EP Impurity H (S-Isomer) structure

Atomoxetine EP Impurity H (S-Isomer)

CAS: 114133-37-8

In Stock97%+

Edaravone impurity 03 structure

Edaravone impurity 03

CAS: 114138-50-0

In Stock97%+

Paliperidone Impurity 32 structure

Paliperidone Impurity 32

CAS: 1141761-80-9

In Stock97%+

Fosfomycin EP Impurity C (Barium Salt) structure

Fosfomycin EP Impurity C (Barium Salt)

CAS: 114252-50-5

In Stock97%+

Sofosbuvir Impurity 12 structure

Sofosbuvir Impurity 12

CAS: 114262-49-6

In Stock97%+

Terbinafine Impurity 4 (Mixture of Z and E Isomers) structure

Terbinafine Impurity 4 (Mixture of Z and E Isomers)

CAS: 114311-70-5

In Stock97%+

BPOX Impurity 1 structure

BPOX Impurity 1

CAS: 114341-88-7

In Stock97%+

Bromhexine Impurity N3 structure

Bromhexine Impurity N3

CAS: 114390-41-9

In Stock97%+

Atomoxetine Chloro Impurity structure

Atomoxetine Chloro Impurity

CAS: 114446-47-8

In Stock97%+

Luliconazole Impurity 7 structure

Luliconazole Impurity 7

CAS: 114446-57-0

In Stock97%+

Suvorexant Impurity N40 structure

Suvorexant Impurity N40

CAS: 1144509-75-0

In Stock97%+

Erlotinib Impurity 123 structure

Erlotinib Impurity 123

CAS: 1145671-36-8

In Stock97%+

Erlotinib Hydrochloride Impurity 3 structure

Erlotinib Hydrochloride Impurity 3

CAS: 1145671-52-8

In Stock97%+

Azvudine Impurity 3 structure

Azvudine Impurity 3

CAS: 1145869-35-7

In Stock97%+

Guaifenesin EP Impurity B-D4 structure

Guaifenesin EP Impurity B-D4

CAS: 114609-65-3

In Stock97%+

Ruxolitinib Impurity N1 structure

Ruxolitinib Impurity N1

CAS: 1146629-84-6

In Stock97%+

Quetiapine Impurity SJ structure

Quetiapine Impurity SJ

CAS: 114724-41-3

In Stock97%+

Losartan Impurity 33 structure

Losartan Impurity 33

CAS: 114798-27-5

In Stock97%+

Losartan EP Impurity C structure

Losartan EP Impurity C

CAS: 114799-13-2

In Stock97%+

Rotigotine EP Impurity H structure

Rotigotine EP Impurity H

CAS: 1148154-91-9

In Stock97%+

Tamoxifen Citrate Impurity 25 structure

Tamoxifen Citrate Impurity 25

CAS: 114828-90-9

In Stock97%+

Trabectedin Impurity 5 structure

Trabectedin Impurity 5

CAS: 114899-80-8

In Stock97%+

Fondaparinux sodium Impurity N1 structure

Fondaparinux sodium Impurity N1

CAS: 114903-05-8

In Stock97%+

Naftidrofuryl Oxalate Impurity C structure

Naftidrofuryl Oxalate Impurity C

CAS: 115025-99-5

In Stock97%+

Chlorothalonil Impurity 7 structure

Chlorothalonil Impurity 7

CAS: 115044-73-0

In Stock97%+

Carbidopa EP Impurity B Hydrochloride structure

Carbidopa EP Impurity B Hydrochloride

CAS: 115054-62-1

In Stock≥95%

Etodolac EP Impurity J structure

Etodolac EP Impurity J

CAS: 115066-03-0

In Stock>95%

Montelukast Impurity 44 structure

Montelukast Impurity 44

CAS: 115104-40-0

In Stock97%+

Sitagliptin Impurity 966 structure

Sitagliptin Impurity 966

CAS: 1151240-88-8

In Stock>95%

Sitagliptin Impurity 14 structure

Sitagliptin Impurity 14

CAS: 1151240-91-3

In Stock97%+

Clomipramine EP Impurity D Hydrochloride structure

Clomipramine EP Impurity D Hydrochloride

CAS: 115189-28-1

In Stock97%+

Prasugrel Impurity 12 structure

Prasugrel Impurity 12

CAS: 1151904-85-6

In Stock97%+

Dofetilide Impurity 7 structure

Dofetilide Impurity 7

CAS: 115256-13-8

In Stock97%+

Atomoxetine EP Impurity H (R-Isomer) structure

Atomoxetine EP Impurity H (R-Isomer)

CAS: 115290-81-8

In Stock97%+

Meclizine Impurity N1 DiHCl structure

Meclizine Impurity N1 DiHCl

CAS: 115291-60-6

In Stock97%+

Revefenacin Impurity N2 structure

Revefenacin Impurity N2

CAS: 115293-14-6

In Stock97%+

Netupitant Impurity H structure

Netupitant Impurity H

CAS: 115309-58-5

In Stock97%+

Baricitinib Impurity N5 structure

Baricitinib Impurity N5

CAS: 1153949-15-5

In Stock97%+

Ruxolitinib Impurity N5 structure

Ruxolitinib Impurity N5

CAS: 1153949-38-2

In Stock97%+

Nortriptyline Impurity 23 structure

Nortriptyline Impurity 23

CAS: 1154-08-1

In Stock97%+

Paclitaxel Impurity 17 (7-(Triethylsilyl)baccatin III) structure

Paclitaxel Impurity 17 (7-(Triethylsilyl)baccatin III)

CAS: 115437-21-3

In Stock97%+

Regadenoson Impurity D structure

Regadenoson Impurity D

CAS: 1154383-52-4

In Stock97%+

Metoprolol Impurity 9 structure

Metoprolol Impurity 9

CAS: 1155083-53-6

In Stock97%+

Dapsone Impurity 26 structure

Dapsone Impurity 26

CAS: 1156-50-9

In Stock97%+

Ferulic Acid Impurity 12 structure

Ferulic Acid Impurity 12

CAS: 115610-31-6

In Stock97%+

Erlotinib Impurity 51 structure

Erlotinib Impurity 51

CAS: 115665-66-2

In Stock97%+

Nilotinib Genotoxic Impurity 2 structure

Nilotinib Genotoxic Impurity 2

CAS: 1157857-29-8

In Stock97%+

Dopamine Impurity 23 structure

Dopamine Impurity 23

CAS: 1158-27-6

In Stock97%+

Brimonidine Impurity N3 structure

Brimonidine Impurity N3

CAS: 1158184-23-6

In Stock97%+

Metconazole Impurity 1 structure

Metconazole Impurity 1

CAS: 115851-28-0

In Stock97%+

Cefoxitin EP Impurity A structure

Cefoxitin EP Impurity A

CAS: 1158963-31-5

In Stock97%+

Lesinurad Impurity 32 structure

Lesinurad Impurity 32

CAS: 1158970-37-6

In Stock97%+

Lesinurad Impurity 8 structure

Lesinurad Impurity 8

CAS: 1158970-49-0

In Stock97%+

Trimipramine EP Impurity C HCI structure

Trimipramine EP Impurity C HCI

CAS: 1159-80-4

In Stock97%+

Diosmin Impurity 10 structure

Diosmin Impurity 10

CAS: 115960-14-0

In Stock97%+

Solifenacin Impurity 8 (HCl) structure

Solifenacin Impurity 8 (HCl)

CAS: 1159826-34-2

In Stock97%+

Phenylephrine EP Impurity D Racemate structure

Phenylephrine EP Impurity D Racemate

CAS: 1159977-09-9

In Stock97%+

1159977-11-3
2,2 inverted exclamation mark -Bistetrazole-1,1 inverted exclamation mark -bisphenyl (Losartan Impurity ) structure

1159977-11-3 2,2 inverted exclamation mark -Bistetrazole-1,1 inverted exclamation mark -bisphenyl (Losartan Impurity )

CAS: 1159977-11-3

In Stock97%+

Anatabine Impurity 1 structure

Anatabine Impurity 1

CAS: 1159977-12-4

In Stock97%+

Losartan Impurity K structure

Losartan Impurity K

CAS: 1159977-26-0

In Stock95%

Pyrimido[5,4-d]Pyrimidine Impurity 9 structure

Pyrimido[5,4-d]Pyrimidine Impurity 9

CAS: 1159977-42-0

In Stock97%+

Benzenesulfonic Acid Impurity 4 structure

Benzenesulfonic Acid Impurity 4

CAS: 116-50-7

In Stock97%+

Anthraquinone Impurity 5 structure

Anthraquinone Impurity 5

CAS: 116-78-9

In Stock97%+

Regadenoson Impurity 28 structure

Regadenoson Impurity 28

CAS: 116002-29-0

In Stock97%+

Rivaroxaban Impurity 15 (Mixture of Diastereomers) structure

Rivaroxaban Impurity 15 (Mixture of Diastereomers)

CAS: 1160169-99-2

In Stock97%+

Biotin Impurity 19 structure

Biotin Impurity 19

CAS: 1160173-32-9

In Stock97%+

Biotin Impurity 20 structure

Biotin Impurity 20

CAS: 1160188-05-5

In Stock97%+

Emtricitabine Impurity 24 structure

Emtricitabine Impurity 24

CAS: 1160303-44-5

In Stock97%+

Tasimelteon Impurity D structure

Tasimelteon Impurity D

CAS: 1161417-63-5

In Stock97%+

Isradipine Impurity 1 structure

Isradipine Impurity 1

CAS: 116169-18-7

In Stock97%+

Iloperidone Impurity 31 structure

Iloperidone Impurity 31

CAS: 116218-80-5

In Stock97%+

Gestrinone Impurity 8 structure

Gestrinone Impurity 8

CAS: 116256-39-4

In Stock97%+

Irinotecan Impurity 1 structure

Irinotecan Impurity 1

CAS: 116269-53-5

In Stock97%+

Dutasteride Impurity N59 structure

Dutasteride Impurity N59

CAS: 116285-36-0

In Stock97%+

Gestrinone Impurity 7 structure

Gestrinone Impurity 7

CAS: 116299-92-4

In Stock97%+

Entacapone Impurity 01 structure

Entacapone Impurity 01

CAS: 116314-52-4

In Stock97%+

Gemcitabine Impurity 20 structure

Gemcitabine Impurity 20

CAS: 116371-66-5

In Stock97%+

Adefovir Dipivoxil Impurity 23 structure

Adefovir Dipivoxil Impurity 23

CAS: 116384-55-5

In Stock97%+

Metronidazole Impurity 25 structure

Metronidazole Impurity 25

CAS: 116429-84-6

In Stock97%+

Dapsone Impurity 10 structure

Dapsone Impurity 10

CAS: 116435-84-8

In Stock97%+

Itopride Impurity 6 HCl structure

Itopride Impurity 6 HCl

CAS: 116447-22-4

In Stock97%+

Nalbuphine Impurity 3 structure

Nalbuphine Impurity 3

CAS: 116499-16-2

In Stock97%+

Chlorambucil EP Impurity B structure

Chlorambucil EP Impurity B

CAS: 116505-53-4

In Stock97%+

Arecoline Impurity 1 HBr structure

Arecoline Impurity 1 HBr

CAS: 116511-28-5

In Stock97%+

Calcitriol Impurity 5 structure

Calcitriol Impurity 5

CAS: 116535-65-0

In Stock97%+

Duloxetine EP Impurity A structure

Duloxetine EP Impurity A

CAS: 116539-60-7

In Stock97%+

Flumazenil Impurity 17 structure

Flumazenil Impurity 17

CAS: 116569-09-6

In Stock97%+

Voriconazole Impurity 60 structure

Voriconazole Impurity 60

CAS: 116622-90-3

In Stock97%+

Rasagiline Impurity 20 structure

Rasagiline Impurity 20

CAS: 1166392-42-2

In Stock97%+

Ramatroban Impurity 2 structure

Ramatroban Impurity 2

CAS: 116649-86-6

In Stock97%+

Haloxyfop Impurity 4 ((S)-Haloxyfop-methyl) structure

Haloxyfop Impurity 4 ((S)-Haloxyfop-methyl)

CAS: 116661-27-9

In Stock97%+

Fasudil Impurity 23 DiHCl structure

Fasudil Impurity 23 DiHCl

CAS: 116700-36-8

In Stock97%+

Apremilast Impurity 33 HCl structure

Apremilast Impurity 33 HCl

CAS: 1167056-61-2

In Stock97%+

Venlafaxine Impurity 18 structure

Venlafaxine Impurity 18

CAS: 1168135-16-7

In Stock97%+

Tolvaptan Impurity 49 structure

Tolvaptan Impurity 49

CAS: 116815-03-3

In Stock97%+

Duloxetine Impurity 13 structure

Duloxetine Impurity 13

CAS: 116817-12-0

In Stock97%+

Duloxetine Impurity C (In-house) structure

Duloxetine Impurity C (In-house)

CAS: 116817-13-1

In Stock97%+

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