Impurity Reference Standard - Products

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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Pirfenidone and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Pirfenidone 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 Pirfenidone-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.

Pirfenidone

CAT No: CL-PFD-01 CAS No: 53179-13-8 Mol Wt: 185.2 Mol F: C12H11NO Inv Status: Custom Synthesis

Chemical Name: 5-methyl-1-phenylpyridin-2(1H)-one

Pirfenidone EP Impurity A

CAT No: CL-PFD-02 CAS No: 1603-41-4 Mol Wt: 108.1 Mol F: C6H8N2 Inv Status: Custom Synthesis

Chemical Name: 5-methylpyridin-2-amine

Pirfenidone EP Impurity B

CAT No: CL-PFD-03 CAS No: 1003-68-5 Mol Wt: 109.1 Mol F: C6H7NO Inv Status: In Stock

Chemical Name: 5-methylpyridin-2(1H)-one

Pirfenidone EP Impurity C

CAT No: CL-PFD-04 CAS No: 108-95-2 Mol Wt: 94.1 Mol F: C6H6O Inv Status: Custom Synthesis

Chemical Name: phenol

Pirfenidone EP Impurity D

CAT No: CL-PFD-05 CAS No: 108-86-1 Mol Wt: 157 Mol F: C6H5Br Inv Status: Custom Synthesis

Chemical Name: bromobenzene

Pirfenidone Impurity 1

CAT No: CL-PFD-06 CAS No: 2251047-36-4 Mol Wt: 292.3 Mol F: C18H16N2O2 Inv Status: Custom Synthesis

Chemical Name: 1,1'-(1,4-Phenylene)bis(5-methylpyridin-2(1H)-one)

Pirfenidone Impurity 2

CAT No: CL-PFD-07 CAS No: 377756-15-5 Mol Wt: 264.1 Mol F: C12H10BrNO Inv Status: In Stock

Chemical Name: 1-(4-Bromophenyl)-5-methylpyridin-2(1H)-one

Pirfenidone Impurity 3

CAT No: CL-PFD-08 CAS No: 13179-27-6 Mol Wt: 185.2 Mol F: C12H11NO Inv Status: Custom Synthesis

Chemical Name: 6-Methyl-1-phenylpyridin-2(1H)-one

Pirfenidone Impurity 4

CAT No: CL-PFD-09 CAS No: 161057-93-8 Mol Wt: 185.2 Mol F: C12H11NO Inv Status: In Stock

Chemical Name: 4-Methyl-1-phenylpyridin-2(1H)-one

Pirfenidone Impurity 5

CAT No: CL-PFD-10 CAS No: 53427-93-3 Mol Wt: 185.2 Mol F: C12H11NO Inv Status: Custom Synthesis

Chemical Name: 3-Methyl-1-phenylpyridin-2(1H)-one

Pirfenidone Impurity 6

CAT No: CL-PFD-11 CAS No: 912570-13-9 Mol Wt: 126.1 Mol F: C6H6O3 Inv Status: In Stock

Chemical Name: Benzene-1,2,3-triol

Pirfenidone Impurity 15

CAT No: CL-PFD-12 CAS No: 106-37-6 Mol Wt: 126.1 Mol F: C6H6O3 Inv Status: In Stock

Chemical Name: benzene-1,2,4-triol

Pirfenidone Impurity 14

CAT No: CL-PFD-13 CAS No: 108-36-1 Mol Wt: 235.90 Mol F: C6H4BR2 Inv Status: In Stock

Chemical Name: 1,3-Dibromobenzene

Type:Impurity Reference Standard

Total Products: 13

Inv. Status:

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