3-Methyl-1,3-butanediol
Also known as: 3-methylbutane-1,3-diol, Isopentyldiol, Isoprene glycol, 2-Methyl-2,4-butanediol, 1,3-Butanediol,3-methyl, 1,1-dimethyl-1,3-propanediol, 3-hydroxy-3-methylbutanol, UNII-19NOL5474Q, MFCD00059655
3-Methyl-1,3-butanediol (CAS 2568-33-4) 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 50.86°C (estimate), a boiling point of 201.0±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 91.3±13.0 °C. It is listed by 1 supplier, from 1.13 to 8.17 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 2568-33-4
- Jingsj CID
- J-1524657-0
- Molecular Formula
- C5H12O2
- Molecular Weight
- 104.148 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | >98.0%(GC) 500ml | ¥567.00 | $0.17 /mlBest ¥1.13/ml CNY | CN China MOQ 500ml | |
In Stock | 90% 500ml | ¥843.00 | $0.25 /ml ¥1.69/ml CNY | CN China MOQ 500ml | |
In Stock | 90% 100ml | ¥178.00 | $0.27 /ml ¥1.78/ml CNY | CN China MOQ 100ml |
Physicochemical Properties
| Melting Point | 50.86°C (estimate) |
|---|---|
| Boiling Point | 201.0±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 91.3±13.0 °C |
| Exact Mass | 104.083733 |
| PSA | 40.46000 |
| LogP | -0.34 |
| Vapor Pressure | 0.1±0.8 mmHg at 25°C |
| Refractive Index | 1.445 |
Frequently Asked Questions
What is the CAS number of 3-Methyl-1,3-butanediol?
The CAS number of 3-Methyl-1,3-butanediol is 2568-33-4.
What are the molecular formula and molecular weight of 3-Methyl-1,3-butanediol?
3-Methyl-1,3-butanediol has molecular formula C5H12O2 and molecular weight 104.148 g/mol.
Which suppliers offer 3-Methyl-1,3-butanediol?
1 supplier(s) listed; reference unit price ¥1.13–8.17 /ml.
What are the upstream and downstream products of 3-Methyl-1,3-butanediol?
For 3-Methyl-1,3-butanediol, Upstream Products: 4-Hydroxy-2-butanone, Methylmagnesium bromide, 4,4-Dimethyl-1,3-dioxane; Downstream Products: (E)-6,10-dimethylundeca-5,9-dien-2-yl acetate, 1-Chloro-3-methyl-2-butene, 3-Chloro-3-methyl-1-butene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methyl-1,3-butanediol (CAS 2568-33-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524657-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.