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5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid

Also known as: 5,6-Dihydroxy-2-pyrazinecarboxylic acid, 5,6-Dihydroxypyrazine-2-carboxylic acid, 5,6-Dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid, 1,4,5,6-Tetrahydro-5,6-dioxo-2-pyrazinecarboxylic acid, 2-Pyrazinecarboxylic acid, 1,4,5,6-tetrahydro-5,6-dioxo-, 2-Pyrazinecarboxylic acid, 5,6-dihydroxy-, 5,6-dioxo-1,4-dihydropyrazine-2-carboxylic acid

5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid (CAS 77168-80-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O4 and a molecular weight of 156.096 g/mol. Key properties include a boiling point of 747.3±60.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 405.7±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
77168-80-0
Jingsj CID
J-1146114-6
Molecular Formula
C5H4N2O4
Molecular Weight
156.096 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point747.3±60.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point405.7±32.9 °C
Exact Mass156.017105
PSA103.02000
LogP-2.06
Vapor Pressure0.0±2.6 mmHg at 25°C
Refractive Index1.705

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 5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid?

The CAS number of 5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid is 77168-80-0.

What are the molecular formula and molecular weight of 5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid?

5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid has molecular formula C5H4N2O4 and molecular weight 156.096 g/mol.

What are the upstream and downstream products of 5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid?

For 5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid, Upstream Products: 5-Hydroxypyrazine-2-carboxamide, 5-Hydroxypyrazine-2-carboxylic acid, Methyl 5-hydroxypyrazine-2-carboxylate.

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

Last updated:

How to cite: Jingsj. "5,6-dioxo-1,4,5,6-tetrahydropyrazine-2-carboxylic acid (CAS 77168-80-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1146114-6 (accessed 2026-11-09).

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