4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione

Also known as: 2H-Pyrano[3,2-c]quinoline-2,5(6H)-dione, 4-hydroxy-6-methyl-, 4-Hydroxy-6-methyl-6H-pyrano[3,2-c]quinoline-2,5-dione, 4-Hydroxy-6-methylpyrano[3,2-c]quinoline-2,5-dione, 4-Hydroxy-6-methyl-5,6-dihydro-2,5-dioxo-2H-pyrano<3,2-c>quinoline, PYR039

4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (CAS 18706-63-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H9NO4 and a molecular weight of 243.21500 g/mol. Key properties include a boiling point of 467.3ºC at 760mmHg, a density of 1.54g/cm3 and a flash point of 236.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18706-63-3
Jingsj CID: J-1499556-3
Molecular Formula: C₁₃H₉NO₄
Molecular Weight: 243.21500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	467.3ºC at 760mmHg
Density	1.54g/cm3
Flash Point	236.4ºC
Exact Mass	243.05300
PSA	72.44000
LogP	1.35050
Vapor Pressure	1.55E-09mmHg at 25°C
Refractive Index	1.71

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione?

The CAS number of 4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione is 18706-63-3.

What are the molecular formula and molecular weight of 4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione?

4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione has molecular formula C13H9NO4 and molecular weight 243.21500 g/mol.

What are the upstream and downstream products of 4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione?

For 4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione, Upstream Products: N-Methylaniline, Diethyl malonate; Downstream Products: 4-Hydroxy-1-methyl-2-quinolone, 3-acetyl-4-hydroxy-1-methylquinolin-2(1H)-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-Hydroxy-6-methyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (CAS 18706-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499556-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.