Pyrazofurin

Also known as: 3-beta-D-ribofuranosyl-4-hydroxypyrazole-5-carboxamide, 4-hydroxy-3-beta-D-ribofuranosyl-1H-pyrazole-5-carboxamide, Pyrazomycin, Pirazofurin, beta-Pyrazomycin, NSC 143095

Pyrazofurin (CAS 30868-30-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H13N3O6 and a molecular weight of 259.21600 g/mol. Key properties include a boiling point of 584.397ºC at 760 mmHg, a density of 1.786g/cm3 and a flash point of 307.232ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 30868-30-5
Jingsj CID: J-33139-9
Molecular Formula: C₉H₁₃N₃O₆
Molecular Weight: 259.21600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	584.397ºC at 760 mmHg
Density	1.786g/cm3
Flash Point	307.232ºC
Exact Mass	259.08000
PSA	161.92000
Refractive Index	1.718
Storage Conditions	-20°C

Activity & Biological Data

Additional Information	[1]. Ringer DP, et al. Alteration in de novo pyrimidine biosynthesis during uridine reversal of pyrazofurin-inhibited DNA synthesis. Neuropsychopharmacology. J Biochem Toxicol. 1991 Spring;6(1):19-27. [2]. Peters GJ, et al. Antipyrimidine effects of five different pyrimidine de novo synthesis inhibitors in three head and neck cancer cell lines. Nucleosides Nucleotides Nucleic Acids. 2018;37(6):329-339.

Additional Information

[1]. Ringer DP, et al. Alteration in de novo pyrimidine biosynthesis during uridine reversal of pyrazofurin-inhibited DNA synthesis. Neuropsychopharmacology. J Biochem Toxicol. 1991 Spring;6(1):19-27. [2]. Peters GJ, et al. Antipyrimidine effects of five different pyrimidine de novo synthesis inhibitors in three head and neck cancer cell lines. Nucleosides Nucleotides Nucleic Acids. 2018;37(6):329-339.

Frequently Asked Questions

What is the CAS number of Pyrazofurin?

The CAS number of Pyrazofurin is 30868-30-5.

What are the molecular formula and molecular weight of Pyrazofurin?

Pyrazofurin has molecular formula C9H13N3O6 and molecular weight 259.21600 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Pyrazofurin (CAS 30868-30-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33139-9 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.