Methyl 4-hydroxy-4-methyl-2-pentynoate

4-羟基-4-甲基-2-戊炔酸甲酯

Also known as: METHYL 4-HYDROXY-4-METHYL-2-PENTYNOATE, methyl 4-hydroxy-4-methylpent-2-ynoate, 4-hydroxy-4-methyl-2-pentynoic acid methyl ester

Methyl 4-hydroxy-4-methyl-2-pentynoate (CAS 209909-03-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H10O3 and a molecular weight of 142.15200 g/mol. It is also known as METHYL 4-HYDROXY-4-METHYL-2-PENTYNOATE, methyl 4-hydroxy-4-methylpent-2-ynoate and 4-hydroxy-4-methyl-2-pentynoic acid methyl ester. Key properties include a boiling point of 363.487ºC at 760 mmHg, a density of 1.521 g/cm3 and a flash point of 173.631ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
209909-03-5
Jingsj CID
J-1046501-7
Molecular Formula
C7H10O3
Chinese Name
4-羟基-4-甲基-2-戊炔酸甲酯
Molecular Weight
142.15200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point363.487ºC at 760 mmHg
Density1.521 g/cm3
Flash Point173.631ºC

Frequently Asked Questions

What is the CAS number of Methyl 4-hydroxy-4-methyl-2-pentynoate?

The CAS number of Methyl 4-hydroxy-4-methyl-2-pentynoate is 209909-03-5.

What are the molecular formula and molecular weight of Methyl 4-hydroxy-4-methyl-2-pentynoate?

Methyl 4-hydroxy-4-methyl-2-pentynoate has molecular formula C7H10O3 and molecular weight 142.15200 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 4-hydroxy-4-methyl-2-pentynoate (CAS 209909-03-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1046501-7 (accessed 2026-10-22).

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