Nitrosamine Impurities

Sr. No. Impurity name CAS No. Chemical structure
1 N-Nitrosomorpholine 59-89-2
2 N-Nitrosodiethanolamine 1116-54-7
3 N-Nitrosodimethylamine (NDMA) 62-75-9
4 N- Nitrosodiethylamine 55-18-5
5 N - Nitrosomethylphenylamine 614-00-6
6 N- Nitrosodiisopropylamine 601-77-4
7 N- Nitrosoisopropylethylamine 16339-04-1
8 N- Nitrosodibutylamine 924-16-3
9 N-Nitroso-N-Methyl - 4 - amino butyric acid 61445-55-4
10 Nitroso Sitagliptin -1 1481965-39-2
11 N-Nitroso-Loperamide EP Impurity C 3192-36-7
12 1-[(4-Chlorophenyl)phenylmethyl]-4-nitrosopiperazine 2005-04-1
13 N-Nitroso Vibegron Not available
14 Nitroso Verapamil Impurity B Not available
15 N-Nitroso Verapamil Impurity 2 Not available
16 N-Nitroso Verapamil Impurity 3 Not available
17 N-Nitroso Verapamil Impurity 4 Not available
18 N-Nitroso Verapamil Impurity 5 Not available
19 N-Methyl-N’-nitrosopiperazine 16339-07-4
20 Pemafibrate Nitroso Impurity-I Not available
21 N-Nitroso boc-piperazine 877177-42-9
22 N-Nitroso benzonatate Not available
23 N-Nitroso ambroxol Not available
24 Ethyl 4-(butylnitrosoamino)benzoate 101265-45-6
25 Tofacitinib Nitroso Impurity-I Not available
26 Tofacitinib Nitroso Impurity-II Not available
27 1-Cyclopentyl-4-nitrosopiperazine 61379-66-6
28 1-Cyclohexyl-4-nitrosopiperazine Not available
29 N-Nitroso piperidine 100-75-4
30 1-nitrosopiperazine 5632-47-3
31 1,4-dinitrosopiperazine 140-79-4
32 4-(Nitrosomethylamino) pyridine 16219-99-1
33 N-Nitroso pyrrolidine 930-55-2
34 4-(Diphenylmethyl)-1-nitrosopiperidine 94067-39-7