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1-cyanocyclobutane-1-carboxylic acid

Also known as: 1-cyanocyclobutanecarboxylic acid, 1-cyano-1-cyclobutanecarboxylic acid, 1-cyano-cyclobutanecarboxylic acid, cyanocyclobutanecarboxylic acid, 1-Cyan-1-cyclobutancarbonsaeure, 1-Cyan-cyclobutancarbonsaeure, 1-Cyanocyclobutan-1-carbonsaeure

1-cyanocyclobutane-1-carboxylic acid (CAS 30491-91-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7NO2 and a molecular weight of 125.12500 g/mol. Key properties include a melting point of 68-69ºC, a boiling point of 324.3ºC at 760 mmHg, a density of 1.27g/cm3 and a flash point of 150ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
30491-91-9
Jingsj CID
J-1177948-9
Molecular Formula
C6H7NO2
Molecular Weight
125.12500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point68-69ºC
Boiling Point324.3ºC at 760 mmHg
Density1.27g/cm3
Flash Point150ºC
Exact Mass125.04800
PSA61.09000
LogP0.76488
Refractive Index1.51

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1-cyanocyclobutane-1-carboxylic acid?

The CAS number of 1-cyanocyclobutane-1-carboxylic acid is 30491-91-9.

What are the molecular formula and molecular weight of 1-cyanocyclobutane-1-carboxylic acid?

1-cyanocyclobutane-1-carboxylic acid has molecular formula C6H7NO2 and molecular weight 125.12500 g/mol.

What are the upstream and downstream products of 1-cyanocyclobutane-1-carboxylic acid?

For 1-cyanocyclobutane-1-carboxylic acid, Upstream Products: Ethyl 1-cyanocyclobutanecarboxylate, Ethyl cyanoacetate, 1,3-Dibromopropane; Downstream Products: 1,1-Cyclobutanedicarboxylic acid, Cyclobutanecarbonitrile, Carbon dioxide.

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

Last updated:

How to cite: Jingsj. "1-cyanocyclobutane-1-carboxylic acid (CAS 30491-91-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1177948-9 (accessed 2026-11-09).

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