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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Antipyrine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Antipyrine impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Antipyrine-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Antipyrine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Aminoantipyrine D3 Stable Isotopes CS-W-00108 68229-55-0 Enquire
4-Formylamino Antipyrine-d3 Stable Isotopes CS-T-100286 Not Available Enquire
4-Methylamino Antipyrine-d3 Stable Isotopes CS-P-02896 1246820-06-3 In Stock
4-Methylaminoantipyrine-D3 (methyl-d3) hydrogen sulphate Stable Isotopes CS-O-36485 Not Available Enquire
4-Methylaminoantipyrine-D3(Methylamine-D3) hydrogen sulfate Stable Isotopes CS-W-00379 1246820-06-3(Freebase) Enquire
Antipyrine-d7 Stable Isotopes CS-O-57368 60-80-0 In Stock


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Aminoantipyrine API CS-P-03100 Not Available Enquire
Antipyrine API CS-O-11032 60-80-0 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Acetamidoantipyrine Metabolite CS-O-03502 83-15-8 In Stock
4-hydroxy Antipyrine Metabolite CS-O-14013 1672-63-5 In Stock
4-Sulfate Aminoantipyrine Metabolite CS-P-07206 1759-26-8 Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Norantipyrine Glucuronide Glucuronide CS-T-83052 67566-02-3 In Stock


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Antipyrine D3-AR Grade-10 ppm/ACN Analytical Standard CS-T-48291-1ML 65566-62-3 Enquire