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Name	1-CHLORO-2-BUTENE	EINECS	209-739-5
CAS No.	591-97-9	Density	0.909 g/cm³
PSA	0.00000	LogP	1.80130
Solubility	999mg/L(temperature not stated)	Melting Point	-65 °C
Formula	C₄H₇Cl	Boiling Point	84.5 °C at 760 mmHg
Molecular Weight	90.5526	Flash Point	-12°C
Transport Information	UN 2924 3/PG 2	Appearance	colourless liquid
Safety	16-26-36/37/39-45	Risk Codes	11-22-34
Molecular Structure		Hazard Symbols	F,C
Synonyms	1-Chloro-2-butene;2-Buten-1-yl chloride;2-Butenyl chloride;Crotyl chloride;a-Chloro-b-butylene;g-Methallyl chloride;g-Methylallyl chloride;	Article Data	35

1-CHLORO-2-BUTENE Synthetic route

: 6117-91-5
(E/Z)-2-buten-1-ol

: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
With triphenylphosphine In various solvent(s) at 20℃; for 1h;	28%
With hydrogenchloride
With N-chloro-succinimide; dimethylsulfide In dichloromethane
With oxalyl dichloride; Triphenylphosphine oxide In chloroform at 20℃; for 7h;	70 %Spectr.
With oxalyl dichloride; chloro(triphenyl)phosphonium chloride In chloroform at 20℃; for 7h; Appel reaction;	64 mg

: 598-32-3
2-hydroxy-3-butene

A: 563-52-0
2-chloro-3-butene

B: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; water
With bismuth(III) chloride In tetrachloromethane for 0.0833333h; Heating;

: 563-52-0
2-chloro-3-butene

: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
With water at 85℃;

: 6117-91-5
(E/Z)-2-buten-1-ol

A: 563-52-0
2-chloro-3-butene

B: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; water
With bismuth(III) chloride In tetrachloromethane for 0.0833333h; Heating;

: 96233-06-6
1-Methyl-2-propenyl diphenyl phosphate

A: 563-52-0
2-chloro-3-butene

B: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
With lithium chloride In N,N-dimethyl-formamide for 0.166667h; Ambient temperature; Yield given. Yields of byproduct given;

: 7647-01-0
hydrogenchloride

: 106-99-0
buta-1,3-diene

A: 563-52-0
2-chloro-3-butene

B: 591-97-9
1-chloro-2-butene

: 7647-01-0
hydrogenchloride

: 64-19-7
acetic acid

: 106-99-0
buta-1,3-diene

A: 563-52-0
2-chloro-3-butene

B: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
at 25℃;
at 25℃;

: 106-98-9
1-butylene

: 7782-50-5
chlorine

A: 563-52-0
2-chloro-3-butene

B: 541-33-3
1,1-dichlorobutane

C: 51157-81-4
1,1-dichloro-but-2-ene

D: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
at 380 - 390℃;

...Expand

: 7647-01-0
hydrogenchloride

: 563-52-0
2-chloro-3-butene

: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
reagiert analog mit CuCl, FeCl3;
reagiert analog in Gegenwart von CuCl, FeCl3; Gleichgewichte der Reaktion;

: 563-52-0
2-chloro-3-butene

: 7732-18-5
water

: 591-97-9
1-chloro-2-butene

Conditions

Conditions	Yield
at 85℃;

1-CHLORO-2-BUTENE Chemical Properties

Chemical Name: 1-Chloro-2-butene
IUPAC NAME: (E)-1-chlorobut-2-ene
CAS No.: 591-97-9
EINECS: 209-739-5
RTECS: EM4264000
RTECS Class: Mutagen
Molecular Formula: : C₄H₇Cl
Molecular Weight: : 90.55 g/mol
Density: 0.909 g/cm³
Melting Point: -65°C
Boiling Point: 84.5 °C at 760 mmHg
1-CHLORO-2-BUTENE(591-97-9) is stable under normal temperatures and pressures.but incompatible with oxidizing agents.Following is the structure:

The chemical synonymous of 1-CHLORO-2-BUTENE(591-97-9) are (2E)-1-Chloro-2-butene;1-chloro-2-buten;1-chloro-but-2-ene;1-chlorobut-2-ene;2-Butene,1-chloro-;2-Butenyl chloride;2-butenylchloride;alpha-Chloro-beta-butylene.

1-CHLORO-2-BUTENE Uses

1-CHLORO-2-BUTENE(591-97-9) is mainly used in organic synthesis

1-CHLORO-2-BUTENE Toxicity Data With Reference

1.		mmo-sat 5 µmol/plate		BCPCA6 Biochemical Pharmacology. 29 (1980),2611.
2.		dns-hmn:hla 100 µmol/L		CALEDQ Cancer Letters (Shannon, Ireland). 20 (1983),263.

1-CHLORO-2-BUTENE Safety Profile

Human mutation data reported. An eye and mucous membrane irritant. When heated to decomposition it emits toxic fumes of Cl⁻. See also CHLORINATED HYDROCARBONS, ALIPHATIC.
Hazard Codes:
F: Flammable

C: Corrosive

Risk Statements about 1-CHLORO-2-BUTENE(591-97-9):
    R11 Highly flammable.
    R22 Harmful if swallowed.
    R34 Causes burns.
Safety Statements about 1-CHLORO-2-BUTENE(591-97-9):
    S16 Keep away from sources of ignition - No smoking.
    S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
    S36/37/39 Wear suitable protective clothing, gloves and eye/face protection.
    S45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

1-CHLORO-2-BUTENE Specification

1. Storage: Keep away from sources of ignition. Store in a tightly closed container. Store in a dry area. Refrigerator/flammables.
2. Handling: All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
3. Personal Protection: Wear appropriate safety goggles, protective clothing and gloves.
4. Fire Fighting: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide.

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