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2-Methyl-1,3-propanediol

Also known as: MPO, 1,3-Dihydroxy-2-methylpropane, 2-Methylpropane-1,3-diol, isobutane-1,3-diol, 1,3-Propanediol, 2-methyl-, 2-Methyl-1,3-propanediol (MPO)

2-Methyl-1,3-propanediol (CAS 2163-42-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C4H10O2 and a molecular weight of 90.121 g/mol. Key properties include a melting point of −91 °C(lit.), a boiling point of 123-125 ºC (20 mmHg), a density of 1.015 and a flash point of 100 ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2163-42-0
Jingsj CID
J-21497-3
Molecular Formula
C4H10O2
Molecular Weight
90.121 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−91 °C(lit.)
Boiling Point123-125 ºC (20 mmHg)
Density1.015
Flash Point100 ºC
Exact Mass90.068077
PSA40.46000
LogP-0.69
Additional Property3.2 (vs air)
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.438

Customs & Trade Information

HS Code2905399090
Summary2905399090 other diols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。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 2-Methyl-1,3-propanediol?

The CAS number of 2-Methyl-1,3-propanediol is 2163-42-0.

What are the molecular formula and molecular weight of 2-Methyl-1,3-propanediol?

2-Methyl-1,3-propanediol has molecular formula C4H10O2 and molecular weight 90.121 g/mol.

What are the upstream and downstream products of 2-Methyl-1,3-propanediol?

For 2-Methyl-1,3-propanediol, Upstream Products: Diethyl methylmalonate, Diethyl ethoxymethylenemalonate, dimethyl 3-methylglutarate; Downstream Products: Methylmalonic acid, 3,5-dimethylquinoline, 3,8-Dimethylquinoline.

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

Last updated:

How to cite: Jingsj. "2-Methyl-1,3-propanediol (CAS 2163-42-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21497-3 (accessed 2026-11-06).

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