Pyrazinamide

Also known as: 2-Pyrazinecarboxamide, Pyrazinecarboxamide, Aldinamide, Zinamide, Pyrazinoic acid amide, Pyrazine-2-carboxamide, 2-Carbamylpyrazine, 2-(Aminocarbonyl)pyrazine, Tebrazid, Piraldina

Pyrazinamide (CAS 98-96-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H5N3O and a molecular weight of 123.113 g/mol. Key properties include a melting point of 189-191 °C(lit.), a boiling point of 273.3±43.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 119.1±28.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 98-96-4
Jingsj CID: J-11431-0
Molecular Formula: C₅H₅N₃O
Molecular Weight: 123.113 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	189-191 °C(lit.)
Boiling Point	273.3±43.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	119.1±28.2 °C
Exact Mass	123.043259
PSA	68.87000
LogP	-0.83
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.648
Storage Conditions	-20°C Freezer
Additional Property	15 mg/mL

Activity & Biological Data

Additional Information	[1]. Zhang, Y. and D. Mitchison, The curious characteristics of pyrazinamide: a review. Int J Tuberc Lung Dis, 2003. 7(1): p. 6-21. [2]. Zimhony, O., et al., Pyrazinamide inhibits the eukaryotic-like fatty acid synthetase I (FASI) of Mycobacterium tuberculosis. Nat Med, 2000. 6(9): p. 1043-7. [3]. Boshoff, H.I., V. Mizrahi, and C.E. Barry, 3rd, Effects of pyrazinamide on fatty acid synthesis by whole mycobacterial cells and purified fatty acid synthase I. J Bacteriol, 2002. 184(8): p. 2167-72. [4]. Shi, W., et al., Pyrazinamide inhibits trans-translation in Mycobacterium tuberculosis. Science, 2011. 333(6049): p. 1630-2.

Additional Information

[1]. Zhang, Y. and D. Mitchison, The curious characteristics of pyrazinamide: a review. Int J Tuberc Lung Dis, 2003. 7(1): p. 6-21. [2]. Zimhony, O., et al., Pyrazinamide inhibits the eukaryotic-like fatty acid synthetase I (FASI) of Mycobacterium tuberculosis. Nat Med, 2000. 6(9): p. 1043-7. [3]. Boshoff, H.I., V. Mizrahi, and C.E. Barry, 3rd, Effects of pyrazinamide on fatty acid synthesis by whole mycobacterial cells and purified fatty acid synthase I. J Bacteriol, 2002. 184(8): p. 2167-72. [4]. Shi, W., et al., Pyrazinamide inhibits trans-translation in Mycobacterium tuberculosis. Science, 2011. 333(6049): p. 1630-2.

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Pyrazinamide?

The CAS number of Pyrazinamide is 98-96-4.

What are the molecular formula and molecular weight of Pyrazinamide?

Pyrazinamide has molecular formula C5H5N3O and molecular weight 123.113 g/mol.

What are the upstream and downstream products of Pyrazinamide?

For Pyrazinamide, Upstream Products: 2-Cyanopyrazine, 2-pyrazinecarbonyl chloride, 2-Methylpyrazine; Downstream Products: (±)-3-(2-Carboxypiperazin-4-yl)propyl-1-phosphonic acid, Pyrazine-2-carbothioamide, (R)-Piperazine-2-carboxylic acid.

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. "Pyrazinamide (CAS 98-96-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11431-0 (accessed 2026-11-06).

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