Nitrosamines & NDSRI - Products

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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Azelastine and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Azelastine impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Azelastine-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

N-Nitroso Azelastine

CAT No: CL-AZL-NO-01 CAS No: NA Mol Wt: 396.88 Mol F: C21H21ClN4O2 Inv Status: In Stock

Chemical Name: 4-(4-chlorobenzyl)-2-(1-nitrosoazepan-4-yl)phthalazin-1(2H)-one

N-Nitroso Azelastine Impurity A

CAT No: CL-AZL-NO-02 CAS No: NA Mol Wt: 165.15 Mol F: C7H7N3O2 Inv Status: Custom Synthesis

Chemical Name: N-benzoylnitrous hydrazide

N-Nitroso Azelastine Impurity B

CAT No: CL-AZL-NO-03 CAS No: NA Mol Wt: 262.31 Mol F: C13H18N4O2 Inv Status: In Stock

Chemical Name: N'-(1-nitrosoazepan-4-yl)benzohydrazide

N-Nitroso Azelastine Impurity D

CAT No: CL-AZL-NO-04 CAS No: NA Mol Wt: 299.71 Mol F: C15H10ClN3O2 Inv Status: Custom Synthesis

Chemical Name: 4-(4-chlorobenzyl)-2-nitrosophthalazin-1(2H)-one

N-Nitroso Azelastine Impurity 1

CAT No: CL-AZL-NO-05 CAS No: NA Mol Wt: 396.88 Mol F: C21H21ClN4O2 Inv Status: In Stock

Chemical Name: 4-(4-chlorobenzyl)-2-(2-(1-nitrosopyrrolidin-2-yl)ethyl)phthalazin-1(2H)-one

N-Nitroso Azelastine Impurity 11

CAT No: CL-AZL-NO-06 CAS No: NA Mol Wt: 396.88 Mol F: C21H21ClN4O2 Inv Status: In Stock

Chemical Name: 4-(3-chlorobenzyl)-2-(1-nitrosoazepan-4-yl)phthalazin-1(2H)-one

N-Nitroso Azelastine Impurity 3

CAT No: CL-AZL-NO-07 CAS No: NA Mol Wt: 410.9 Mol F: C22H23ClN4O2 Inv Status: Custom Synthesis

Chemical Name: N-(3-(4-(4-chlorobenzyl)-1-oxophthalazin-2(1H)-yl)hex-5-en-1-yl)-N-methylnitrous amide

N-Nitroso Azelastine Impurity 4

CAT No: CL-AZL-NO-08 CAS No: NA Mol Wt: 422.91 Mol F: C23H23ClN4O2 Inv Status: Custom Synthesis

Chemical Name: N-(((1S,5R)-5-(4-(4-chlorobenzyl)-1-oxophthalazin-2(1H)-yl)cyclohex-3-en-1-yl)methyl)-N-methylnitrous amide

N-Nitroso Azelastine Impurity 5

CAT No: CL-AZL-NO-09 CAS No: NA Mol Wt: 158.2 Mol F: C6H14N4O Inv Status: In Stock

Chemical Name: 4-hydrazinyl-1-nitrosoazepane

N-Nitroso Azelastine Impurity 6

CAT No: CL-AZL-NO-10 CAS No: NA Mol Wt: 144.17 Mol F: C6H12N2O2 Inv Status: In Stock

Chemical Name: 1-Nitrosoazepan-4-ol

N-Nitroso Azelastine impurity 2

CAT No: CL-AZL-NO-11 CAS No: NA Mol Wt: 162.62 Mol F: C6H11ClN2O Inv Status: In Stock

Chemical Name: 2-(2-chloroethyl)-1-nitrosopyrrolidine

N Nitroso Azelastine Impurity 3

CAT No: CL-AZL-NO-12 CAS No: NA Mol Wt: 162.62 Mol F: C6H11ClN2O Inv Status: In Stock

Chemical Name: 2-(2-Chloroethyl)-1-nitroso pyrrolidone

Type:Nitrosamines & NDSRI

Total Products: 12

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