Monooctyl phthalate

邻苯二甲酸单辛酯

Also known as: octyl hydrogen phthalate, mono-n-octyl phthalate, NSC 4639, hydrogen octyl phthalate, phthalic acid monooctyl ester, 1,2-benzenedicarboxylic acid 1-octyl ester, phthalic acid hydrogen 1-octyl ester, phthalic acid 1-hydrogen 2-octyl ester, MOP

Monooctyl phthalate (CAS 5393-19-1) 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 278.344 g/mol. It is also known as octyl hydrogen phthalate, mono-n-octyl phthalate and NSC 4639. Key properties include a boiling point of 414.4±28.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 146.5±17.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5393-19-1
Jingsj CID
J-1494562-1
Molecular Formula
C16H22O4
Chinese Name
邻苯二甲酸单辛酯
Molecular Weight
278.344 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point414.4±28.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point146.5±17.5 °C

Frequently Asked Questions

What is the CAS number of Monooctyl phthalate?

The CAS number of Monooctyl phthalate is 5393-19-1.

What are the molecular formula and molecular weight of Monooctyl phthalate?

Monooctyl phthalate has molecular formula C16H22O4 and molecular weight 278.344 g/mol.

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

Last updated:

How to cite: Jingsj. "Monooctyl phthalate (CAS 5393-19-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494562-1 (accessed 2026-10-25).

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