1-Chloro-2-methyl-2-propanol
Also known as: 2-Chloro-tert-butyl alcohol, Chloro-tert-butyl alcohol, 1-Chloro-2-methylpropan-2-ol, 2-Propanol, 1-chloro-2-methyl-, Isobutylene chlorohydrin
1-Chloro-2-methyl-2-propanol (CAS 558-42-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H9ClO and a molecular weight of 108.567 g/mol. Key properties include a boiling point of 131.0±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 61.0±15.3 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 558-42-9
- Jingsj CID
- J-36165-9
- Molecular Formula
- C4H9ClO
- Molecular Weight
- 108.567 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 131.0±13.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 61.0±15.3 °C |
| Exact Mass | 108.034195 |
| PSA | 20.23000 |
| LogP | 0.62 |
| Vapor Pressure | 4.2±0.5 mmHg at 25°C |
| Refractive Index | 1.434 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 2905590090 |
|---|---|
| Summary | 2905590090 other halogenated, sulphonated, nitrated or nitrosated derivatives of acyclic alcohols。Supervision conditions:None。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-Chloro-2-methyl-2-propanol?
The CAS number of 1-Chloro-2-methyl-2-propanol is 558-42-9.
What are the molecular formula and molecular weight of 1-Chloro-2-methyl-2-propanol?
1-Chloro-2-methyl-2-propanol has molecular formula C4H9ClO and molecular weight 108.567 g/mol.
Is 1-Chloro-2-methyl-2-propanol hazardous?
1-Chloro-2-methyl-2-propanol has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of 1-Chloro-2-methyl-2-propanol?
For 1-Chloro-2-methyl-2-propanol, Upstream Products: 1,2-dichloro-2-methylpropane, Isobutylene, Methylmagnesium iodide; Downstream Products: 1-methoxy-2-methylpropan-2-ol, 2,2-Dimethylthiirane, 1-chloro-2-methylprop-1-ene.
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-Chloro-2-methyl-2-propanol (CAS 558-42-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36165-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.