1-Chloro-2-butene

Modify Date: 2026-07-01 19:03:06

1-Chloro-2-butene Structure
1-Chloro-2-butene structure
Common Name 1-Chloro-2-butene
CAS Number 591-97-9 Molecular Weight 90.551
Density 0.9±0.1 g/cm3 Boiling Point 84.5±0.0 °C at 760 mmHg
Molecular Formula C4H7Cl Melting Point -65°C
MSDS N/A Flash Point -15.0±0.0 °C

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 1-Chloro-2-butene
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 0.9±0.1 g/cm3
Boiling Point 84.5±0.0 °C at 760 mmHg
Melting Point -65°C
Molecular Formula C4H7Cl
Molecular Weight 90.551
Flash Point -15.0±0.0 °C
Exact Mass 90.023628
LogP 2.17
Vapour Pressure 80.6±0.1 mmHg at 25°C
Index of Refraction 1.426
Stability Stable. Highly flammable. Incompatible with strong oxidizing agents.

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
EM4264000
CHEMICAL NAME :
2-Butene, 1-chloro-
CAS REGISTRY NUMBER :
591-97-9
BEILSTEIN REFERENCE NO. :
0605304
LAST UPDATED :
199710
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C4-H7-Cl
MOLECULAR WEIGHT :
90.56
WISWESSER LINE NOTATION :
G2U2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :
Unscheduled DNA synthesis
TEST SYSTEM :
Human HeLa cell
DOSE/DURATION :
100 umol/L
REFERENCE :
CALEDQ Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 1975- Volume(issue)/page/year: 20,263,1983

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes F:Flammable;C:Corrosive;
Risk Phrases R11;R22;R34
Safety Phrases S16-S26-S36/37/39-S45
RIDADR UN 2924 3/PG 2
WGK Germany 2
RTECS EM4264000
Packaging Group I; II; III
HS Code 2903299090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

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%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

methallyl chloride
EINECS 209-739-5
MFCD00000987
1-chloro-2-buten
krotylchlorid
Chlorobutene
Crotylchlorid
1-Chlorobut-2-ene
1-Chlorbut-2-en
CROTYL CHLORIDE
2-butenylchloride
(E/Z)-crotyl chloride

 1-Chloro-2-butene | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the downstream products of 1-Chloro-2-butene?
A: Related downstream products(CAS) of 1-Chloro-2-butene: 111712-50-6;18147-23-4;18409-00-2;639-58-7;30056-32-7;598-32-3;6117-91-5;53774-20-2;27829-70-5.
Q: What are the upstream materials of 1-Chloro-2-butene?
A: Related upstream materials(CAS) of 1-Chloro-2-butene: 6117-91-5;598-32-3;96233-06-6;563-52-0;4894-61-5;7647-01-0;106-99-0;64-19-7;7732-18-5;106-98-9.
Q: What is the LogP of 1-Chloro-2-butene?
A: LogP of 1-Chloro-2-butene is 2.17.
Q: What is the CAS number of 1-Chloro-2-butene?
A: CAS number of 1-Chloro-2-butene is 591-97-9.
Q: What is the molecular formula of 1-Chloro-2-butene?
A: Molecular formula of 1-Chloro-2-butene is C4H7Cl.
Q: What is the boiling point of 1-Chloro-2-butene?
A: Boiling point of 1-Chloro-2-butene is 84.5±0.0 °C at 760 mmHg.
Q: What is the safety information for 1-Chloro-2-butene?
A: Safety information for 1-Chloro-2-butene: S16-S26-S36/37/39-S45.
Q: What is the melting point of 1-Chloro-2-butene?
A: Melting point of 1-Chloro-2-butene is -65°C.
Q: What English synonyms does 1-Chloro-2-butene have?
A: English synonyms of 1-Chloro-2-butene: methallyl chloride, EINECS 209-739-5, MFCD00000987, 1-chloro-2-buten, krotylchlorid, Chlorobutene, Crotylchlorid, 1-Chlorobut-2-ene, 1-Chlorbut-2-en, CROTYL CHLORIDE, 2-butenylchloride, (E/Z)-crotyl chloride.
Q: What is the molecular weight of 1-Chloro-2-butene?
A: Molecular weight of 1-Chloro-2-butene is 90.551.

 1-Chloro-2-butenefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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