Impurities

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Nitroso Impurities

S. NoAPI NameProduct Description
1Valsartan
CAS No: 137862-53-4
N-Nitroso Valsartan
2Nintedanib
CAS No: 656247-17-5
N-Nitroso Nintedanib
3Metformin Hydrochloride
CAS No: 1115-70-4
N-Nitroso Metformin Hydrochloride
4Dasatinib
CAS No: 302962-49-8
N-Nitroso Dasatinib
5Ruxolitinib
CAS No: 941678-49-5
N-Nitroso Ruxolitinib
6Paliperidone N-Nitroso Paliperidone Intermediate
7Doxycycline Hydrochloride  
 CAS No: 10592-13-9
N-Nitroso-N-desmethyldoxycycline
8Dibenzazepine                           
CAS No: 256-96-2
N-Nitroso Iminostilbene
9Lansoprazole                                                   
 CAS No: 103577-45-3
Nitroso Lansoprazole
10Palbociclib                                   
CAS No: 571190-30-2
Palbociclib Nitroso Impurity 1
11Palbociclib                                   
CAS No: 571190-30-2
Palbociclib Nitroso Impurity 2
12Ranitidine                                                                   
CAS No: 66357-35-5
Ranitidine N-Nitroso Impurity
13Citalopram Hydrobromide
CAS No: 59729-32-7
N-Nitroso-Desmethyl Escitalopram Impurity
14PyrrolopiperidineMono Nitroso Pyrrolopiperidine
15Dabigatran Etexilate
CAT No: CS-O-30897
CAS No: 211915-06-9
N-Nitroso Dabigatran
16Sacubitril                                                             
 CAS No:  149709-62-6
N-Nitroso Sacubitril
17Fluvoxamine                                   
CAS No: 54739-18-3
N-Nitroso Fluvoxamine Maleate EP Impurity F
18Hydrochlorothiazide-D2                                      
CAS No: 1219798-89-6
N-Nitroso Hydrochlorothiazide D2
19Apremilast                                       
 CAS No: 608141-41-9
N-Nitroso Apremilast
20Azelastine EP Impurity B                                            
CAS No: 117078-69-0
N-Nitroso Azelastine EP Impurity B
21Flecainide EP Impurity B                                             
CAS No: 22990-77-8
N-Nitroso Flecainide EP Impurity B
23Nitroso-STG-19 (Sitagliptin)
 CAS No: 2892260-32-9
Nitroso-STG-19 (Sitagliptin)-6,6,8,8-D4
24Finerenone                                                  
CAS No: 1050477-31-0
Finerenone Nitroso Impurity
25Metoclopramide                            
CAS No: 364-62-5
N-Desethyl N-Nitroso Metoclopramide
26De-Alkylated Ivacaftor                      
 CAS No: 873054-39-8
N-Nitroso De-alkylated Ivacaftor
27Perindopril Erbumine
CAS No: 107133-36-8
N-Nitroso Perindopril
28EsomeprazoleDesmethoxy N-Nitroso Esomeprazol Impurity
   

Stock Impurities

S. No API Name Impurity Name CAS Id Qty Available
1 ALBENDAZOLE(CASId:54965218) Albendazole EP Impurity-A 80983-36-4 250 mg
Albendazole Sulfoxide 54029-12-8 250 mg
Albendazole Sulfone 75184-71-3 250 mg
Albendazole Impurity-D 80983-34-2 250 mg
Carbendazim 10605-21-7 250 mg
5-(S-Methyl) Albendazole 80983-45-5 250 mg
Albendazole EP Impurity-G 20367-38-8 250 mg
2 APIXABIN  (CAS Id: 503612-47-3) Apixaban Chloro Impurity 2029205-64-7 200 mg
3 ATAZANAVIR(CAS Id: 198904-31-3) Atazanavir Impurity-15 857900-54-0 200 mg
Atazanavir EP Impurity-J 2307732-33-6 200 mg
Atazanavir RS3 Impurity 765254-57-7 200 mg
4 AZILSARTAN (CAS Id: 147403-03-0) Desethyl Azilsartan Medoxomil 1417576-00-1 500 mg
Azilsartan Impurity-A 147404-76-0 500 mg
O-Desethyl Azilsartan 1442400-68-1 500 mg
5 BOSENTAN(CAS Id: 147536-97-8) Bosentan Related Compound-A 150727-06-3 100 mg
Bosentan Related Compound-B 174227-14-6 100 mg
Bosentan Related Compound-C 1097263-60-9 100 mg
Bosentan Related Compound-D 150728-13-5 100 mg
Bosentan Related Compound-E 6292-59-7 100 mg
6 BUPROPION HCl(CAS Id: 31677-93-7) Bupropion Hydrochloride Related Compound-A 1049718-72-0 250 mg
Bupropion Hydrochloride Related Compound-B 1049718-43-5 250 mg
Bupropion Hydrochloride Related Compound-D 63199-74-6 250 mg
Bupropion 2′-Chloro Analog 1049718-57-1 250 mg
Bupropion 3, 4-Dichloro Impurity 1346598-72-8 250 mg
Bupropion 3, 5-Dichloro Impurity Hydrochloride 1346603-00-6 250 mg
7 DARUNAVIR(CAS Id: 206361-99-1) Darunavir (1S, 2S)-Isomer 850141-19-4 200 mg
N-Acetyl Darunavir 1546919-11-2 200 mg
Darunavir (S,R,R,S,S) Isomer NA 200 mg
Darunavir (S,R,S,R,S) Isomer NA 200 mg
Darunavir (R,R,R,S,R) Isomer NA 200 mg
Darunavir (S,R,S,R,R) Isomer NA 200 mg
Darunavir (R,S,R,S,R) Isomer NA 200 mg
Darunavir Impurity-A Enantiomer 1402142-62-4 200 mg
8 DASATANIB (CAS Id: 302962-49-8) Dasatinib N-Oxide 910297-52-8 150 mg
N-Deshydroxyethyl Dasatinib 910297-51-7 150 mg
9 DEXLANSPRAZOL(CAS Id: 138530-94-6) (S)-Lansoprazole 138530-95-7 250 mg
Dexlansoprazole N-Oxide 1427429-03-5 250 mg
Lansoprazole Impurity-C 103577-40-8 250 mg
Lansoprazole Impurity-7 112525-75-4 250 mg
Dexlansoprazole Hydroxy Impurity 253345-08-1 250 mg
10 FAMOTIDINE (CAS Id: 76824-35-6) Famotidine EP Impurity-C 76824-17-4 500 mg
Famotidine EP Impurity-D 76824-16-3 500 mg
Famotidine EP Impurity-E 129083-44-9 500 mg
Famotidine EP Impurity-F 107880-74-0 500 mg
Famotidine EP Impurity-G 76823-97-7 500 mg
Famotidine EP Impurity-H 106649-96-1 500 mg
11 LINAGLIPTIN (CAS Id: 668270-12-0) Linagliptin Impurity-E 1446263-38-2 250 mg
(S)-Linagliptin 668270-11-9 250 mg
Linagliptin N-Acetyl Impurity 1803079-49-3 250 mg
12 PAZOPANIB(CAS Id: 444731-52-6) N-Demethyl Pazopanib 1252927-47-1 250 mg
Pazopanib Impurity-9 1296888-47-5 250 mg
Pazopanib Di-Indazole Impurity 1226499-98-4 250 mg
13 RUXOLITINIB (CAS Id: 941678-49-5) Ruxolitinib Impurity-5 2102675-40-9 250 mg
Ruxolitinib Amide 1911644-32-0 250 mg
14 TIAGABINE(CAS Id: 115103-54-3) Tiagabine Impurity-1 1253297-73-2 100 mg
Desmethyl Tiagabine 745762-44-1 100 mg
Tiagabine USP Related Compound-A 145821-60-9 100 mg
15 SORAFENIB (CAS Id: 284461-73-0) Sorafenib EP Impurity-A 284462-37-9 500 mg
Sorafenib EP Impurity-B 2004659-84-9 500 mg
Sorafenib EP Impurity-D 2206827-14-5 500 mg
Sorafenib EP Impurity-E 284670-98-0 500 mg
Sorafenib EP Impurity-F 1285533-84-7 500 mg
Sorafenib EP Impurity-G 18585-06-3 500 mg
16 Afatinib  Afatinib Impurity-34 16499-57-3 1000 mg
17 Acetazolamide Acetazolamide EP Impurity-A 60320-32-3 1000 mg
Acetazolamide EP Impurity-C 32873-56-6 1000 mg
Acetazolamide EP Impurity-D 14949-00-9 1000 mg
Acetazolamide EP Impurity-E 827026-60-8 1000 mg
Acetazolamide EP Impurity-G 2349-67-9 1000 mg
18 Alprazolam Alprazolam EP Impurity-E 719-59-5 5000 mg
Alprazolam USP Related Compound-A 28910-89-6 1000 mg
19 Baclofen Baclofen EP Impurity-A 22518-27-0 1000 mg
Baclofen EP Impurity-B 1141-23-7 1000 mg
20 Butylhydroxyanisole Butylhydroxyanisole 121-00-6 5000 mg
2-Tert butyl-4-hydroxyanisole 88-32-4 5500 mg
21 Ceterizine Ceterizine EP Impurity-A 303-26-4 10000 mg
Ceterizine EP Impurity-B 113740-61-7 100 mg
Ceterizine EP Impurity-C 83881-59-8 100 mg
Ceterizine EP Impurity-D 346451-15-8 5000 mg
Ceterizine EP Impurity-E 682323-77-9 100 mg
Ceterizine EP Impurity-F 83881-53-2 100 mg
Ceterizine EP Impurity-G 164726-80-1 100 mg
Ceterizine EP Impurity-B Ethyl ester 19178-83-7 150 mg
Ceterizine 4-Chlorobenzhydrol Impurity (USP) 119-56-2 10000 mg
Ceterizine 4-Chlorobenzophenone Impurity (USP) 134-85-0 10000 mg
Ceterizine Impurity-2 1391052-52-0 100 mg
22 Cyclophospamide Cyclophospamide USP compound related-A 821-48-7 200 mg
Cyclophospamide Impurity-2 2576-29-6 100 mg
23 Dabigatran Dabigatran 3- Aminobenzoyl impurity 2518220-07-8 500mg
Dabigatran impurity 61 212322-56-0 1000mg
N-(4-Cyanophenyl)glycine 42288-26-6 500mg
Dabigatran impurity 8  429659-01-8 500mg
Ethyl 3-(2-pyridylamino)propionate  103041-38-9 500mg
Dabigatran impurity 20 1421487-27-5 500mg
Dabigatran impurity 30  2688571-04-0 500mg
24 Dacarbazine Dacarbazine EP Impurity B 72-40-2 2000mg
Dacarbazine EP Impurity D 124-40-3 500mg
25 Enalapril Enalapril EP impurity 1 288-32-4 200mg
 Enalapril Homophenylalanine impurity 1012-05-1 200mg
L-Proline 147-85-3 2000mg
Enalapril Impurity 3 17450-56-5 200mg