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5-Aminopyrazine-2-carboxylic acid

Also known as: 5-Amino-2-pyrazinecarboxylic acid, 2-Pyrazinecarboxylic acid, 5-amino-, Pyrazinecarboxylic acid, 5-amino- (7CI,9CI), 5-AMINO-2-PYRAZINECARBOXYLIC ACID

5-Aminopyrazine-2-carboxylic acid (CAS 40155-43-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H5N3O2 and a molecular weight of 139.112 g/mol. Key properties include a boiling point of 431.8±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 214.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40155-43-9
Jingsj CID
J-1408356-8
Molecular Formula
C5H5N3O2
Molecular Weight
139.112 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point431.8±45.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point214.9±28.7 °C
Exact Mass139.038177
PSA89.10000
LogP-0.71
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.663
Storage Conditions2-8°C

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 5-Aminopyrazine-2-carboxylic acid?

The CAS number of 5-Aminopyrazine-2-carboxylic acid is 40155-43-9.

What are the molecular formula and molecular weight of 5-Aminopyrazine-2-carboxylic acid?

5-Aminopyrazine-2-carboxylic acid has molecular formula C5H5N3O2 and molecular weight 139.112 g/mol.

What are the upstream and downstream products of 5-Aminopyrazine-2-carboxylic acid?

For 5-Aminopyrazine-2-carboxylic acid, Upstream Products: 2-Amino-5-bromopyrazine.

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

Last updated:

How to cite: Jingsj. "5-Aminopyrazine-2-carboxylic acid (CAS 40155-43-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1408356-8 (accessed 2026-11-09).

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