3-Chloro-3-methyl-1-butyne
Also known as: 1-Butyne, 3-chloro-3-methyl-, 3-chloro-3-methylbut-1-yne, EINECS 214-188-9, MFCD00190221
3-Chloro-3-methyl-1-butyne (CAS 1111-97-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H7Cl and a molecular weight of 102.562 g/mol. Key properties include a melting point of −61 °C(lit.), a boiling point of 78.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 4.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1111-97-3
- Jingsj CID
- J-30057-2
- Molecular Formula
- C5H7Cl
- Molecular Weight
- 102.562 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −61 °C(lit.) |
|---|---|
| Boiling Point | 78.0±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 4.4±0.0 °C |
| Exact Mass | 102.023628 |
| LogP | 1.68 |
| Vapor Pressure | 104.3±0.1 mmHg at 25°C |
| Refractive Index | 1.437 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2903299090 |
|---|---|
| Summary | 2903299090 other unsaturated chlorinated derivatives of acyclic hydrocarbons。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 3-Chloro-3-methyl-1-butyne?
The CAS number of 3-Chloro-3-methyl-1-butyne is 1111-97-3.
What are the molecular formula and molecular weight of 3-Chloro-3-methyl-1-butyne?
3-Chloro-3-methyl-1-butyne has molecular formula C5H7Cl and molecular weight 102.562 g/mol.
Is 3-Chloro-3-methyl-1-butyne hazardous?
3-Chloro-3-methyl-1-butyne has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
What are the upstream and downstream products of 3-Chloro-3-methyl-1-butyne?
For 3-Chloro-3-methyl-1-butyne, Upstream Products: 2-Methyl-3-butyn-2-ol, 3-Methyl-1-butyne, 2-Metbut-1-en-1yne; Downstream Products: Rutamarin, tert-Amyl-tert-butylamine.
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-Chloro-3-methyl-1-butyne (CAS 1111-97-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30057-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.