2,5-Dimethyl-3-hexyne-2,5-diol
Also known as: 2,5-Dimethyl-2,5-hexynediol, 2,5-Dihydroxy-2,5-dimethyl-3-hexyne, Dimethyl hexynediol, 3-Hexyne-2,5-diol, 2,5-dimethyl-
2,5-Dimethyl-3-hexyne-2,5-diol (CAS 142-30-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H14O2 and a molecular weight of 142.196 g/mol. Key properties include a melting point of 90-94 °C(lit.), a boiling point of 205.0±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 86.0±13.0 °C. It is classified under GHS with signal word Danger and hazard statements H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 142-30-3
- Jingsj CID
- J-3141-4
- Molecular Formula
- C8H14O2
- Molecular Weight
- 142.196 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90-94 °C(lit.) |
|---|---|
| Boiling Point | 205.0±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 86.0±13.0 °C |
| Exact Mass | 142.099380 |
| PSA | 40.46000 |
| LogP | 0.29 |
| Vapor Pressure | 0.1±0.9 mmHg at 25°C |
| Refractive Index | 1.489 |
| Additional Property | 240 g/L (20 ºC) |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2905399090 |
|---|---|
| Summary | 2905399090 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 2,5-Dimethyl-3-hexyne-2,5-diol?
The CAS number of 2,5-Dimethyl-3-hexyne-2,5-diol is 142-30-3.
What are the molecular formula and molecular weight of 2,5-Dimethyl-3-hexyne-2,5-diol?
2,5-Dimethyl-3-hexyne-2,5-diol has molecular formula C8H14O2 and molecular weight 142.196 g/mol.
Is 2,5-Dimethyl-3-hexyne-2,5-diol hazardous?
2,5-Dimethyl-3-hexyne-2,5-diol has GHS signal word Danger and hazard statements H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of 2,5-Dimethyl-3-hexyne-2,5-diol?
For 2,5-Dimethyl-3-hexyne-2,5-diol, Upstream Products: Acetylene, 2-Methyl-3-butyn-2-ol, 2-Methyl-1-propanol; Downstream Products: cis-2,5-dimethyl-3-hexene, trans-Diisopropylethylene, 2,5-Dimethylhexa-2,4-dien.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,5-Dimethyl-3-hexyne-2,5-diol (CAS 142-30-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3141-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.