2-hydroxy-3-methyl-1,4-naphthoquinone

2-羟基-3-甲基-1,4-萘醌

Also known as: Phthiocol, Phthiokol, 2-Methyl-3-hydroxy-1,4-naphthoquinone, 3-Hydroxy-2-methyl-1,4-naphthoquinone, 2-hydroxy-3-methylnaphthalene-1,4-dione, 1,4-Naphthalenedione, 2-hydroxy-3-methyl-, 1,4-Naphthoquinone, 2-hydroxy-3-methyl-, EINECS 207-594-2, Vitamin K1 Impurity 88, Phytonadione Impurity 12, Vitamin K1 Related Compound 3

2-hydroxy-3-methyl-1,4-naphthoquinone (CAS 483-55-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H8O3 and a molecular weight of 188.17900 g/mol. It is also known as Phthiocol, Phthiokol and 2-Methyl-3-hydroxy-1,4-naphthoquinone. Key properties include a boiling point of 342.655ºC at 760 mmHg, a density of 1.389 g/cm3 and a flash point of 175.232ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 483-55-6
Jingsj CID: J-1512958-1
Molecular Formula: C₁₁H₈O₃
Chinese Name: 2-羟基-3-甲基-1,4-萘醌
Molecular Weight: 188.17900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	342.655ºC at 760 mmHg
Density	1.389 g/cm3
Flash Point	175.232ºC

Frequently Asked Questions

What is the CAS number of 2-hydroxy-3-methyl-1,4-naphthoquinone?

The CAS number of 2-hydroxy-3-methyl-1,4-naphthoquinone is 483-55-6.

What are the molecular formula and molecular weight of 2-hydroxy-3-methyl-1,4-naphthoquinone?

2-hydroxy-3-methyl-1,4-naphthoquinone has molecular formula C11H8O3 and molecular weight 188.17900 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-hydroxy-3-methyl-1,4-naphthoquinone (CAS 483-55-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1512958-1 (accessed 2026-10-22).

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