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Name	1,3-Dichloro-2-butene	EINECS	N/A
CAS No.	926-57-8	Density	1.128g/cm³
PSA	0.00000	LogP	2.36780
Solubility	Insoluble in water	Melting Point	-27.02°C (estimate)
Formula	C4H6 Cl2	Boiling Point	131.9°Cat760mmHg
Molecular Weight	124.998	Flash Point	33.9°C
Transport Information	N/A	Appearance	clear yellow to brown liquid
Safety	Moderately toxic by inhalation. When heated to decomposition it emits toxic vapors of Cl⁻.	Risk Codes	36/37/38-20-10
Molecular Structure		Hazard Symbols
Synonyms	1,3-Dichloro-2-butene;NSC 8749

1,3-Dichloro-2-butene Synthetic route

: 689-97-4
3-buten-1-yne

A: 126-99-8
chloroprene

B: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; ammonium chloride; copper(l) chloride at 30℃;
With hydrogenchloride; ammonium chloride; copper(l) chloride at 30℃;
With hydrogenchloride; ammonium chloride; copper(l) chloride at 30℃;

: 1822-86-2
2-bromo-1,3-butadiene

: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; ammonium chloride; hydroquinone; copper(l) chloride

: 51430-83-2
3-chloro-2-butenyl bromide

: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; ammonium chloride; copper(l) chloride

: 126-99-8
chloroprene

: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
With hydrogenchloride; ammonium chloride; hydroquinone; copper(l) chloride

: 10026-13-8, 874483-75-7
phosphorus pentachloride

: 78-94-4
methyl vinyl ketone

: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
Kuehlung in Eis-Kochsalz-Mischung;

: 7647-01-0
hydrogenchloride

: ammonium chloride

: 126-99-8
chloroprene

CuCl: CuCl

: 926-57-8
1,3-dichloro-2-butene

: 689-97-4
3-buten-1-yne

: 7647-01-0
hydrogenchloride

: ammonium chloride

CuCl: CuCl

: 926-57-8
1,3-dichloro-2-butene

Conditions

Conditions	Yield
bei hoeheren Temperaturen oder hoeherer HCl-Konzentration;
bei hoeheren Temperaturen oder hoeherer HCl-Konzentration;

: 689-97-4
3-buten-1-yne

: 7647-01-0
hydrogenchloride

: ammonium chloride

CuCl: CuCl

A: 126-99-8
chloroprene

B: 926-57-8
1,3-dichloro-2-butene

...Expand

: 125014-55-3
3-α-Naphthylpropargylpyrrolidine

: 926-57-8
1,3-dichloro-2-butene

: 1-((Z)-3-Chloro-but-2-enyl)-1-(3-naphthalen-1-yl-prop-2-ynyl)-pyrrolidinium; chloride

Conditions

Conditions	Yield
In acetonitrile	100%

: 125014-56-4
1-(3-(naphthalen-1-yl)prop-2-ynyl)piperidine

: 926-57-8
1,3-dichloro-2-butene

: 1-((Z)-3-Chloro-but-2-enyl)-1-(3-naphthalen-1-yl-prop-2-ynyl)-piperidinium; chloride

Conditions

Conditions	Yield
In acetonitrile	100%

1,3-Dichloro-2-butene Chemical Properties

Product Name: 1,3-Dichloro-2-butene
CAS Registry Number: 926-57-8
Synonyms: 1,3-Dichloro-2-butene ; 1,3-Dichlorobutylene ; 2-Butene, 1,3-dichloro- ; BRN 0906754 ; EINECS 213-138-3 ; HSDB 1500 ; NSC 8749
Systematic Name: 1,3-Dichlorobut-2-ene ; 2-Butene, 1,3-dichloro-
IUPAC Name: (Z)-1,3-dichlorobut-2-ene
Molecular Weight: 124.99644 [g/mol]
Molecular Formula: C₄H₆Cl₂
XLogP3-AA: 2.1
EINECS: 213-138-3
Surface Tension: 26.6 dyne/cm
Density: 1.128 g/cm³
Flash Point: 33.9 °C
Enthalpy of Vaporization: 35.42 kJ/mol
Boiling Point: 131.9 °C at 760 mmHg
Vapour Pressure: 11.2 mmHg at 25°C
Refractive Index: 1.469-1.473
Storage temp.: 0-6°C
Following is the molecular structure of 1,3-Dichloro-2-butene (CAS NO.926-57-8) is:

1,3-Dichloro-2-butene Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LC50	inhalation	4400mg/m3/2H (4400mg/m3)		Zhurnal Eksperimental'noi i Klinicheskoi Meditsiny. Journal of Experimental and Clinical Medicine. Vol. 9(6), Pg. 66, 1969.
rat	LC50	inhalation	3930mg/m3/4H (3930mg/m3)		Zhurnal Eksperimental'noi i Klinicheskoi Meditsiny. Journal of Experimental and Clinical Medicine. Vol. 9(6), Pg. 66, 1969.

1,3-Dichloro-2-butene Consensus Reports

Reported in EPA TSCA Inventory.

1,3-Dichloro-2-butene Safety Profile

Safty information about 1,3-Dichloro-2-butene (CAS NO.926-57-8) is:
Moderately toxic by inhalation. When heated to decomposition it emits toxic vapors of Cl⁻.
Hazard Codes:
Harmful Xn
Risk Statements:
R36/37/38:Irritating to eyes, respiratory system and skin.
R20:Harmful by inhalation.
R10:Flammable.
Safety Statements:
S37/39:Wear suitable gloves and eye/face protection.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: 1993
RTECS: EM4760000
HazardClass: 3
PackingGroup: III

1,3-Dichloro-2-butene Specification

1,3-Dichloro-2-butene (CAS NO.926-57-8) is a clear yellow to brown liquid. There are some informations about it.
First Aid Measures about it:
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin: Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion: Get medical aid. Wash mouth out with water.
Inhalation: Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Handling and Storage about it:
Handling: Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Refrigerator/flammables.

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