chloroprene
Also known as: 2-chloro-1,3-butadiene, β-chloroprene, 1,3-Butadiene, 2-chloro-, 2-chlorobuta-1,3-diene, 2-chloro-butadiene, Baypren 110, Baypren 216, Baypren 310, Baypren EM1, Baypren M1, Chloropren, Chloropreen, Chloroprene, Cloroprene, Neoprene AH, NSC 18589
chloroprene (CAS 126-99-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H5Cl and a molecular weight of 88.53550 g/mol. Key properties include a boiling point of 59.4ºC at 760mmHg, a density of 0,958 g/cm3 and a flash point of 11 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 126-99-8
- Jingsj CID
- J-36756-7
- Molecular Formula
- C4H5Cl
- Molecular Weight
- 88.53550 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 59.4ºC at 760mmHg |
|---|---|
| Density | 0,958 g/cm3 |
| Flash Point | 11 °C |
| Exact Mass | 88.00800 |
| LogP | 1.92490 |
| Refractive Index | 1.445 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H350 — May cause cancer
- H370 — Causes damage to organs
Frequently Asked Questions
What is the CAS number of chloroprene?
The CAS number of chloroprene is 126-99-8.
What are the molecular formula and molecular weight of chloroprene?
chloroprene has molecular formula C4H5Cl and molecular weight 88.53550 g/mol.
Is chloroprene hazardous?
chloroprene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of chloroprene?
For chloroprene, Upstream Products: 1-buten-3-yne, Acetylene, 1,3-dichloro-2-butene; Downstream Products: 1,3-dichloro-2-butene, 1-Chlorocyclohexene, 5-Chloro-2-cyanopyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "chloroprene (CAS 126-99-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36756-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.