(3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile

(3-氧代-1,3-二氢-1-异苯并呋喃)-乙腈

Also known as: 1-Isobenzofuranacetonitrile,1,3-dihydro-3-oxo-, 2-(3-oxo-1H-2-benzofuran-1-yl)acetonitrile, 3-cyanomethylphthalide, phthalidyl-acetonitrile, Phthalidyl-acetonitril, 1-oxo-3-cyanomethyl-1,3-dihydrobenzo[c]furan

(3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile (CAS 18327-98-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H7NO2 and a molecular weight of 173.16800 g/mol. It is also known as 1-Isobenzofuranacetonitrile,1,3-dihydro-3-oxo-, 2-(3-oxo-1H-2-benzofuran-1-yl)acetonitrile and 3-cyanomethylphthalide. Key properties include a boiling point of 400.728ºC at 760 mmHg, a density of 1.264g/cm3 and a flash point of 195.531ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18327-98-5
Jingsj CID
J-1473186-0
Molecular Formula
C10H7NO2
Chinese Name
(3-氧代-1,3-二氢-1-异苯并呋喃)-乙腈
Molecular Weight
173.16800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point400.728ºC at 760 mmHg
Density1.264g/cm3
Flash Point195.531ºC

Frequently Asked Questions

What is the CAS number of (3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile?

The CAS number of (3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile is 18327-98-5.

What are the molecular formula and molecular weight of (3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile?

(3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile has molecular formula C10H7NO2 and molecular weight 173.16800 g/mol.

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

Last updated:

How to cite: Jingsj. "(3-oxo-1,3-dihydro-isobenzofuran-1-yl)-acetonitrile (CAS 18327-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1473186-0 (accessed 2026-10-22).

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