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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Paracetamol and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Paracetamol 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 Paracetamol-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 Paracetamol Impurity 1
CAT No: CL-PCM-NO-01 CAS No: NA Mol Wt: 164.161 Mol F: C8H8N2O2 Inv Status: Custom Synthesis
Chemical Name: N-nitroso-N-phenylacetamide
N-Nitroso Paracetamol Impurity 2
CAT No: CL-PCM-NO-02 CAS No: NA Mol Wt: 180.161 Mol F: C8H8N2O3 Inv Status: Custom Synthesis
Chemical Name: N-(4-hydroxyphenyl)-N-nitrosoacetamide
N-Nitroso Paracetamol EP Impurity M
CAT No: CL-PCM-NO-03 CAS No: NA Mol Wt: 230.219 Mol F: C12H10N2O3 Inv Status: Custom Synthesis
Chemical Name: N,N-bis(4-hydroxyphenyl)nitrous amide
N-Nitroso Paracetamol Impurity 3
CAT No: CL-PCM-NO-04 CAS No: NA Mol Wt: 214.22 Mol F: C12H10N2O2 Inv Status: Custom Synthesis
Chemical Name: N-(4-hydroxyphenyl)-N-phenylnitrous amide
N-Nitroso paracetamol impurity 4
CAT No: CL-PCM-NO-05 CAS No: NA Mol Wt: 259.22 Mol F: C12H9N3O4 Inv Status: Custom Synthesis
Chemical Name: N-(4-hydroxyphenyl)-N-(4-nitrophenyl)nitrous amide
N-(4-nitrophenyl)-N-phenylnitrous amide
CAT No: CL-PCM-NO-06 CAS No: 3665-70-1 Mol Wt: 243.22 Mol F: C12H9N3O3 Inv Status: Custom Synthesis
Chemical Name: N-(4-nitrophenyl)-N-phenylnitrous amide
N-Nitroso Paracetamol impurity - 5
CAT No: CL-PCM-NO-07 CAS No: 6947-36-0 Mol Wt: 258.27 Mol F: C14H14N2O3 Inv Status: In Stock
Chemical Name: N,N-bis(4-methoxyphenyl)nitrous amide
N-Nitroso Paracetamol Impurity 6
CAT No: CL-PCM-NO-08 CAS No: NA Mol Wt: 229.23 Mol F: C12H11N3O2 Inv Status: Custom Synthesis
Chemical Name: N-(4-aminophenyl)-N-(4-hydroxyphenyl)nitrous amide
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