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1,5-Pentanediol

Also known as: Pentamethylene glycol, 1,5-Dihydroxypentane, Pentane-1,5-diol, Pentylene glycol, alpha,omega-Pentanediol

1,5-Pentanediol (CAS 111-29-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C5H12O2 and a molecular weight of 104.148 g/mol. Key properties include a melting point of -18 °C, a boiling point of 239.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 129.4±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
111-29-5
Jingsj CID
J-33988-8
Molecular Formula
C5H12O2
Molecular Weight
104.148 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-18 °C
Boiling Point239.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point129.4±0.0 °C
Exact Mass104.083733
PSA40.46000
LogP-0.60
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.446
Additional PropertyMiscible

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 1,5-Pentanediol?

The CAS number of 1,5-Pentanediol is 111-29-5.

What are the molecular formula and molecular weight of 1,5-Pentanediol?

1,5-Pentanediol has molecular formula C5H12O2 and molecular weight 104.148 g/mol.

What are the upstream and downstream products of 1,5-Pentanediol?

For 1,5-Pentanediol, Upstream Products: Glutaric acid, Adipic acid, Succinic acid; Downstream Products: 1-Benzylpiperidine-2,6-dione, 5-Bromo-1-pentanol, 1,5-Dibromopentane.

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

Last updated:

How to cite: Jingsj. "1,5-Pentanediol (CAS 111-29-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33988-8 (accessed 2026-11-09).

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