1,4-Naphthalenedione, 5-hydroxy-7-methyl-

7-甲基-5-羟基萘醌

Also known as: Ramentaceone, 7-Methyljuglone, 7-Methyljuglon, 5-Hydroxy-7-methyl-1,4-naphthoquinone, 5-Hydroxy-7-methyl-1,4-naphthalenedione, 7-Methyl-5-hydroxy-1,4-naphthoquinone, NSC 208733, NSC 624625, Aids108047

1,4-Naphthalenedione, 5-hydroxy-7-methyl- (CAS 14787-38-3) 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 Ramentaceone, 7-Methyljuglone and 7-Methyljuglon. Key properties include a boiling point of 427.2ºC at 760mmHg, a density of 1.371g/cm3 and a flash point of 226.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14787-38-3
Jingsj CID: J-1150876-8
Molecular Formula: C₁₁H₈O₃
Chinese Name: 7-甲基-5-羟基萘醌
Molecular Weight: 188.17900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	427.2ºC at 760mmHg
Density	1.371g/cm3
Flash Point	226.3ºC
Exact Mass	188.04700
PSA	54.37000
LogP	1.63580
Vapor Pressure	6.68E-08mmHg at 25°C
Refractive Index	1.642

Customs & Trade Information

HS Code	2914690090
Summary	2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,4-Naphthalenedione, 5-hydroxy-7-methyl-?

The CAS number of 1,4-Naphthalenedione, 5-hydroxy-7-methyl- is 14787-38-3.

What are the molecular formula and molecular weight of 1,4-Naphthalenedione, 5-hydroxy-7-methyl-?

1,4-Naphthalenedione, 5-hydroxy-7-methyl- has molecular formula C11H8O3 and molecular weight 188.17900 g/mol.

What are the upstream and downstream products of 1,4-Naphthalenedione, 5-hydroxy-7-methyl-?

For 1,4-Naphthalenedione, 5-hydroxy-7-methyl-, Upstream Products: 4-Chloro-3-methylphenol, 1,4-Benzoquinone; Downstream Products: Physcion, Emodin.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,4-Naphthalenedione, 5-hydroxy-7-methyl- (CAS 14787-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1150876-8 (accessed 2026-10-28).

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