1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid

1,4,6,7-四氢吡喃并[4,3-c]吡唑-3-甲酸

Also known as: 1,4,6,7-tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid, 1H,4H,6H,7H-pyrano[4,3-c]pyrazole-3-carboxylic acid, Pyrano[4,3-c]pyrazole-3-carboxylic acid, 1,4,6,7-tetrahydro-

1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid (CAS 518990-20-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O3 and a molecular weight of 168.150 g/mol. It is also known as 1,4,6,7-tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid, 1H,4H,6H,7H-pyrano[4,3-c]pyrazole-3-carboxylic acid and Pyrano[4,3-c]pyrazole-3-carboxylic acid, 1,4,6,7-tetrahydro-. Key properties include a boiling point of 493.8±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 252.4±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
518990-20-0
Jingsj CID
J-1558424-9
Molecular Formula
C7H8N2O3
Chinese Name
1,4,6,7-四氢吡喃并[4,3-c]吡唑-3-甲酸
Molecular Weight
168.150 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point493.8±45.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point252.4±28.7 °C

Frequently Asked Questions

What is the CAS number of 1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid?

The CAS number of 1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid is 518990-20-0.

What are the molecular formula and molecular weight of 1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid?

1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid has molecular formula C7H8N2O3 and molecular weight 168.150 g/mol.

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

Last updated:

How to cite: Jingsj. "1,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid (CAS 518990-20-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1558424-9 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.