Dibutyl isophthalate

间苯二甲酸二丁酯

Also known as: DI-N-BUTYLISOPHTHALATE, DIBUTYL ISOPHTHALATE, 1,3-Benzenedicarboxylic acid, 1,3-dibutyl ester, benzene-1,3-dicarboxylic acid dibutyl ester, dibutyl benzene-1,3-dicarboxylate, dibutyl m-phthalate, isophthalic acid, dibutyl ester

Dibutyl isophthalate (CAS 3126-90-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H22O4 and a molecular weight of 278.34300 g/mol. It is also known as DI-N-BUTYLISOPHTHALATE, DIBUTYL ISOPHTHALATE and 1,3-Benzenedicarboxylic acid, 1,3-dibutyl ester. Key properties include a boiling point of 341.8 °C at 760 mmHg and a flash point of 180.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3126-90-7
Jingsj CID
J-1492471-8
Molecular Formula
C16H22O4
Chinese Name
间苯二甲酸二丁酯
Molecular Weight
278.34300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point341.8 °C at 760 mmHg
Flash Point180.2 °C

Frequently Asked Questions

What is the CAS number of Dibutyl isophthalate?

The CAS number of Dibutyl isophthalate is 3126-90-7.

What are the molecular formula and molecular weight of Dibutyl isophthalate?

Dibutyl isophthalate has molecular formula C16H22O4 and molecular weight 278.34300 g/mol.

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

Last updated:

How to cite: Jingsj. "Dibutyl isophthalate (CAS 3126-90-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492471-8 (accessed 2026-10-25).

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