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Pharmaceutical Impurity Reference Standards

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

Alclometasone Dipropionate Impurity 5 structure

Alclometasone Dipropionate Impurity 5

CAS: 129459-98-9

In Stock97%+

Prucalopride Impurity 7 structure

Prucalopride Impurity 7

CAS: 129511-06-4

In Stock97%+

Bestatin Impurity 3 HCl structure

Bestatin Impurity 3 HCl

CAS: 129593-20-0

In Stock97%+

Carfilzomib Impurity 50 structure

Carfilzomib Impurity 50

CAS: 129603-01-6

In Stock97%+

Galactostatin Impurity 1 structure

Galactostatin Impurity 1

CAS: 129797-28-0

In Stock97%+

Bedaquiline Impurity N21 structure

Bedaquiline Impurity N21

CAS: 1298044-25-3

In Stock97%+

Dapagliflozin Impurity 74 structure

Dapagliflozin Impurity 74

CAS: 1298086-29-9

In Stock97%+

Ribociclib Impurity 27 structure

Ribociclib Impurity 27

CAS: 1298101-40-2

In Stock97%+

Thioridazine EP Impurity F structure

Thioridazine EP Impurity F

CAS: 13002-81-8

In Stock97%+

Capecitabine Impurity 27 structure

Capecitabine Impurity 27

CAS: 13007-50-6

In Stock97%+

Pindolol EP Impurity B structure

Pindolol EP Impurity B

CAS: 130115-63-8

In Stock97%+

Pindolol EP Impurity C structure

Pindolol EP Impurity C

CAS: 130115-65-0

In Stock97%+

Fluorometholone Impurity 2 structure

Fluorometholone Impurity 2

CAS: 130145-14-1

In Stock97%+

Rivaroxaban Impurity 133 structure

Rivaroxaban Impurity 133

CAS: 130155-41-8

In Stock97%+

Lenvatinib Impurity 48 structure

Lenvatinib Impurity 48

CAS: 13021-02-8

In Stock97%+

Droxidopa Impurity 1 structure

Droxidopa Impurity 1

CAS: 13023-73-9

In Stock97%+

Ciprofibrate EP Impurity D structure

Ciprofibrate EP Impurity D

CAS: 130232-51-8

In Stock97%+

Meloxicam impurity 13 structure

Meloxicam impurity 13

CAS: 130262-92-9

In Stock97%+

Ozagrel Impurity 18 structure

Ozagrel Impurity 18

CAS: 130451-86-4

In Stock97%+

Nelarabine Alpha Isomer Impurity structure

Nelarabine Alpha Isomer Impurity

CAS: 1305196-84-2

In Stock97%+

Zanamivir Impurity 1 structure

Zanamivir Impurity 1

CAS: 130525-58-5

In Stock97%+

Sitagliptin Impurity 60 structure

Sitagliptin Impurity 60

CAS: 1305324-02-0

In Stock97%+

Faropenem Impurity 15 Disodium salt structure

Faropenem Impurity 15 Disodium salt

CAS: 130535-75-0

In Stock>95%

Faropenem Impurity 11 Disodium Salt structure

Faropenem Impurity 11 Disodium Salt

CAS: 130609-10-8

In Stock97%+

Papaverine Hydrochloride - Impurity E structure

Papaverine Hydrochloride - Impurity E

CAS: 13074-31-2

In Stock97%+

JWH-018 Impurity 2（6-Hydroxyindole） structure

JWH-018 Impurity 2（6-Hydroxyindole）

CAS: 1307803-44-6

In Stock97%+

JWH-073 Impurity 1 (JWH-073 5-Hydroxyindole Metabolite) structure

JWH-073 Impurity 1 (JWH-073 5-Hydroxyindole Metabolite)

CAS: 1307803-47-9

In Stock97%+

JWH-073 Impurity 2 (JWH-073 7-Hydroxyindole Metabolite) structure

JWH-073 Impurity 2 (JWH-073 7-Hydroxyindole Metabolite)

CAS: 1307803-49-1

In Stock97%+

Orlistat Impurity 17 structure

Orlistat Impurity 17

CAS: 130793-30-5

In Stock97%+

Carbamazepine Impurity 5 structure

Carbamazepine Impurity 5

CAS: 13080-74-5

In Stock97%+

Carbamazepine Impurity 2 structure

Carbamazepine Impurity 2

CAS: 13080-75-6

In Stock97%+

Tryptophan Impurity 7 structure

Tryptophan Impurity 7

CAS: 13081-15-7

In Stock97%+

Tadalafil Impurity 119 structure

Tadalafil Impurity 119

CAS: 130812-44-1

In Stock97%+

Protoporphyrin IX Impurity 1 structure

Protoporphyrin IX Impurity 1

CAS: 130851-16-0

In Stock97%+

Adenosine Impurity 24 structure

Adenosine Impurity 24

CAS: 13089-44-6

In Stock97%+

Sodium Fusidate EP Impurity O structure

Sodium Fusidate EP Impurity O

CAS: 13090-91-0

In Stock97%+

Ramipril EP Impurity L structure

Ramipril EP Impurity L

CAS: 1309040-96-7

In Stock97%+

Buspirone EP Impurity A-d8 (Buspirone USP Related Compound A-d8) structure

Buspirone EP Impurity A-d8 (Buspirone USP Related Compound A-d8)

CAS: 1309283-31-5

In Stock97%+

Dronedarone EP Impurity B DiHCl structure

Dronedarone EP Impurity B DiHCl

CAS: 1309476-91-2

In Stock97%+

Oxybuprocaine Impurity 2 structure

Oxybuprocaine Impurity 2

CAS: 1309686-09-6

In Stock97%+

Guanfacine Impurity 13 structure

Guanfacine Impurity 13

CAS: 130974-86-6

In Stock97%+

Cabazitaxel Impurity 37 structure

Cabazitaxel Impurity 37

CAS: 131023-37-5

In Stock97%+

Diclofenac Impurity N1 structure

Diclofenac Impurity N1

CAS: 131023-43-3

In Stock97%+

Benazepril EP Impurity A structure

Benazepril EP Impurity A

CAS: 131064-75-0

In Stock97%+

Lamivudine Impurity J structure

Lamivudine Impurity J

CAS: 131086-26-5

In Stock97%+

Elagolix Impurity N20 structure

Elagolix Impurity N20

CAS: 1311320-17-8

In Stock97%+

Palbociclib Impurity 108 structure

Palbociclib Impurity 108

CAS: 1311611-88-7

In Stock97%+

Ambrisentan Impurity N1 structure

Ambrisentan Impurity N1

CAS: 1312092-82-2

In Stock97%+

Bisnorlipoic Impurity N1 structure

Bisnorlipoic Impurity N1

CAS: 13125-44-5

In Stock97%+

Alverine EP Impurity C structure

Alverine EP Impurity C

CAS: 13125-62-7

In Stock97%+

Methazolamide Impurity 2 structure

Methazolamide Impurity 2

CAS: 1312679-00-7

In Stock97%+

Bendamustine Dihydroxy Isopropyl Ester Impurity structure

Bendamustine Dihydroxy Isopropyl Ester Impurity

CAS: 1313020-24-4

In Stock97%+

Bendamustine Amino Isopropyl Ester Impurity structure

Bendamustine Amino Isopropyl Ester Impurity

CAS: 1313020-26-6

In Stock97%+

Balsalazide Impurity 31 structure

Balsalazide Impurity 31

CAS: 13135-92-7

In Stock97%+

Sorafenib Impurity 67 structure

Sorafenib Impurity 67

CAS: 131418-11-6

In Stock97%+

Didanosine EP Impurity D structure

Didanosine EP Impurity D

CAS: 13146-72-0

In Stock97%+

Zoledronic Acid Impurity 20 structure

Zoledronic Acid Impurity 20

CAS: 131468-90-1

In Stock97%+

Alvimopan Impurity 20 structure

Alvimopan Impurity 20

CAS: 1314751-83-1

In Stock97%+

Alvimopan Impurity 19 structure

Alvimopan Impurity 19

CAS: 1314751-85-3

In Stock97%+

Benzhexol Impurity 01 structure

Benzhexol Impurity 01

CAS: 13150-57-7

In Stock97%+

Fimasartan Impurity 1 structure

Fimasartan Impurity 1

CAS: 1315478-13-7

In Stock97%+

Loline Impurity 2 structure

Loline Impurity 2

CAS: 1315552-05-6

In Stock97%+

Loline Impurity 3 structure

Loline Impurity 3

CAS: 1315552-06-7

In Stock97%+

Allyl Ester of Atorvastatin Cyclic (Isopropyl) Impurity structure

Allyl Ester of Atorvastatin Cyclic (Isopropyl) Impurity

CAS: 1316295-72-3

In Stock97%+

Allyl Ester of Atorvastatin Cyclic (Fluorophenyl) Impurity structure

Allyl Ester of Atorvastatin Cyclic (Fluorophenyl) Impurity

CAS: 1316643-57-8

In Stock97%+

Thiamethoxam Impurity 1 structure

Thiamethoxam Impurity 1

CAS: 131748-59-9

In Stock97%+

Ziprasidone Impurity 5 structure

Ziprasidone Impurity 5

CAS: 131779-46-9

In Stock97%+

Venlafaxine impurity 01 structure

Venlafaxine impurity 01

CAS: 131801-69-9

In Stock97%+

Lurasidone Impurity N1 structure

Lurasidone Impurity N1

CAS: 1318074-20-2

In Stock97%+

Lurasidone Impurity 51 structure

Lurasidone Impurity 51

CAS: 1318074-22-4

In Stock97%+

Ornidazole Impurity C12 structure

Ornidazole Impurity C12

CAS: 13182-81-5

In Stock97%+

Cilastatin Impurity 9 structure

Cilastatin Impurity 9

CAS: 131833-97-1

In Stock97%+

Propranolol Impurity 5 structure

Propranolol Impurity 5

CAS: 132005-35-7

In Stock97%+

Iodoquinol Impurity 5 structure

Iodoquinol Impurity 5

CAS: 13207-63-1

In Stock97%+

Buspirone Impurity 9 structure

Buspirone Impurity 9

CAS: 13220-24-1

In Stock97%+

Paclitaxel Impurity N1 structure

Paclitaxel Impurity N1

CAS: 132201-33-3

In Stock97%+

Diclazuril EP Impurity E structure

Diclazuril EP Impurity E

CAS: 132252-58-5

In Stock97%+

Cefazolin EP Impurity K (Mixture of Diastereomers) structure

Cefazolin EP Impurity K (Mixture of Diastereomers)

CAS: 1322626-65-2

In Stock97%+

Iopromide Impurity 45 HCl structure

Iopromide Impurity 45 HCl

CAS: 132327-79-8

In Stock97%+

Duloxetine Impurity 6 structure

Duloxetine Impurity 6

CAS: 132335-46-7

In Stock97%+

Duloxetine impurity 01 structure

Duloxetine impurity 01

CAS: 132335-49-0

In Stock97%+

Famotidine-13C,d4 Acid Impurity structure

Famotidine-13C,d4 Acid Impurity

CAS: 1324230-60-5

In Stock97%+

Raltitrexed Impurity 4 structure

Raltitrexed Impurity 4

CAS: 132463-02-6

In Stock97%+

Fumarate Impurity 3 structure

Fumarate Impurity 3

CAS: 132475-93-5

In Stock97%+

Ravuconazole Impurity 2 structure

Ravuconazole Impurity 2

CAS: 132507-94-9

In Stock97%+

Mesalazine Impurity 16 structure

Mesalazine Impurity 16

CAS: 13252-72-7

In Stock97%+

Medroxyprogesterone Impurity N3 structure

Medroxyprogesterone Impurity N3

CAS: 13254-82-5

In Stock97%+

Procarbazine Impurity 1 structure

Procarbazine Impurity 1

CAS: 13255-50-0

In Stock97%+

Apixaban Impurity 42 structure

Apixaban Impurity 42

CAS: 132577-23-2

In Stock97%+

Pendimethalin Impurity 5 structure

Pendimethalin Impurity 5

CAS: 132591-94-7

In Stock97%+

Racecadotril Impurity 15 structure

Racecadotril Impurity 15

CAS: 13261-70-6

In Stock97%+

Oxitropium bromide EP Impurity B structure

Oxitropium bromide EP Impurity B

CAS: 13265-10-6

In Stock97%+

Famotidine-13C,D4 Amide Impurity structure

Famotidine-13C,D4 Amide Impurity

CAS: 1327321-45-8

In Stock97%+

Fludarabine Phosphate Impurity 22 structure

Fludarabine Phosphate Impurity 22

CAS: 13276-42-1

In Stock97%+

Glycopyrronium Bromide Impurity N1 structure

Glycopyrronium Bromide Impurity N1

CAS: 13283-82-4

In Stock97%+

Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity structure

Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity

CAS: 132830-17-2

In Stock97%+

Remifentanil EP Impurity C structure

Remifentanil EP Impurity C

CAS: 132875-68-4

In Stock97%+

Alfuzosin EP Impurity B Hydrochloride structure

Alfuzosin EP Impurity B Hydrochloride

CAS: 132900-51-7

In Stock97%+

Mirabegron N-t-BOC Impurity structure

Mirabegron N-t-BOC Impurity

CAS: 1329485-55-3

In Stock97%+

Modafinil EP Impurity B-d5 structure

Modafinil EP Impurity B-d5

CAS: 1329496-95-8

In Stock97%+

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