1,2-butanediol
(±)1,2-丁二醇
Also known as: 1,2-butylene glycol, 1,2-dihydroxybutane, butane-1,2-diol, (+/-)-1,2-butanediol, (±)-1,2-butanediol
1,2-butanediol (CAS 26171-83-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H10O2 and a molecular weight of 90.121 g/mol. It is also known as 1,2-butylene glycol, 1,2-dihydroxybutane and butane-1,2-diol. Key properties include a melting point of -50ºC, a boiling point of 190.3±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 93.3±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 26171-83-5
- Jingsj CID
- J-46894-1
- Molecular Formula
- C4H10O2
- Chinese Name
- (±)1,2-丁二醇
- Molecular Weight
- 90.121 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -50ºC |
|---|---|
| Boiling Point | 190.3±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 93.3±0.0 °C |
Frequently Asked Questions
What is the CAS number of 1,2-butanediol?
The CAS number of 1,2-butanediol is 26171-83-5.
What are the molecular formula and molecular weight of 1,2-butanediol?
1,2-butanediol has molecular formula C4H10O2 and molecular weight 90.121 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2-butanediol (CAS 26171-83-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46894-1 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.