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5,6-Dihydro-4H-pyran-2-carboxylic acid

Also known as: 5,6-DIHYDRO-4H-PYRAN-2-CARBOXYLIC ACID, 3,4-Dihydro-2H-pyran-6-carboxylic acid, 2H-Pyran-6-carboxylic acid, 3,4-dihydro-, 6-Carboxy-3,4-dihydro-2H-pyran, 2-Carboxy-5,6-dihydro-4H-pyran, 5,6-Dihydro-4H-pyran-2-carbonsaeure, RW3924

5,6-Dihydro-4H-pyran-2-carboxylic acid (CAS 31518-14-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O3 and a molecular weight of 128.12600 g/mol. Key properties include a boiling point of 271.4ºC at 760mmHg, a density of 1.268g/cm3 and a flash point of 119.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31518-14-6
Jingsj CID
J-1033386-5
Molecular Formula
C6H8O3
Molecular Weight
128.12600 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point271.4ºC at 760mmHg
Density1.268g/cm3
Flash Point119.1ºC
Exact Mass128.04700
PSA46.53000
LogP0.76530
Refractive Index1.513

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen 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-Dihydro-4H-pyran-2-carboxylic acid?

The CAS number of 5,6-Dihydro-4H-pyran-2-carboxylic acid is 31518-14-6.

What are the molecular formula and molecular weight of 5,6-Dihydro-4H-pyran-2-carboxylic acid?

5,6-Dihydro-4H-pyran-2-carboxylic acid has molecular formula C6H8O3 and molecular weight 128.12600 g/mol.

What are the upstream and downstream products of 5,6-Dihydro-4H-pyran-2-carboxylic acid?

For 5,6-Dihydro-4H-pyran-2-carboxylic acid, Upstream Products: 5,6-Dihydro-4H-pyran-2-carbonitrile, Carbon dioxide, 3,4-Dihydro-2H-pyran; Downstream Products: Tetrahydropyran-2-carboxylic acid, Methyl 5,6-dihydro-4H-pyran-2-carboxylate, (3,4-dihydro-2H-pyran-6-yl)methanol.

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-Dihydro-4H-pyran-2-carboxylic acid (CAS 31518-14-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033386-5 (accessed 2026-11-09).

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