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Name	2,3-Dichlorohexafluoro-2-butene	EINECS	206-133-2
CAS No.	303-04-8	Density	1.605 g/mL at 25 ºC(lit.)
PSA	0.00000	LogP	3.80020
Solubility	N/A	Melting Point	-67 ºC
Formula	C4Cl2 F6	Boiling Point	66-68 ºC(lit.)
Molecular Weight	232.94	Flash Point	3.2°C
Transport Information	N/A	Appearance	clear colorless liquid
Safety	Poison by inhalation. Moderately toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl⁻ and F⁻.	Risk Codes	26-34
Molecular Structure		Hazard Symbols	T+XiTC
Synonyms	2-Butene,2,3-dichlorohexafluoro- (6CI); 1,1,1,4,4,4-Hexafluoro-2,3-dichloro-2-butene;1,1,1,4,4,4-Hexafluoro-2,3-dichlorobutene;2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene; 2,3-Dichlorohexafluoro-2-butene;CFC 1316; CFC 1316mxx	Article Data	20

2,3-Dichlorohexafluoro-2-butene Chemical Properties

IUPAC Name: (E)-2,3-Dichloro-1,1,1,4,4,4-hexafluorobut-2-ene
Product Name: 2,3-Dichlorohexafluoro-2-butene
The MF of (E)-2,3-Dichloro-1,1,1,4,4,4-hexafluorobut-2-ene (CAS NO.303-04-8) is C₄Cl₂F₆.

The MW of (E)-2,3-Dichloro-1,1,1,4,4,4-hexafluorobut-2-ene (CAS NO.303-04-8) is 232.94.
Synonyms of (E)-2,3-Dichloro-1,1,1,4,4,4-hexafluorobut-2-ene (CAS NO.303-04-8): 2,3-Dichlorohexafluoro-2-butene ; 2，3-Dichlorohexafluoro-2-butylene ; 2,3-Dichlorohexafluorobut-2-ene ; 2,3-Dichlorohexafluorobutene-2 ; Hexafluoro-2，3-dichloro-2-butylene ; (2E)-2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene ; 2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-buten ; 2,3-Dichloro-1,1,1,4,4,4-hexafluorobutene-2
Product Categories: Alkenyl;Halogenated Hydrocarbons;Organic Building Blocks
Apperance: clear colorless liquid
Index of Refraction: 1.351
EINECS: 206-133-2
Density: 1.625 g/ml
Flash Point: 3.2 °C
Boiling Point: 68.5 °C
Melting Point: -67 °C

2,3-Dichlorohexafluoro-2-butene Production

Preparation Products: Trifluoroacetic acid

2,3-Dichlorohexafluoro-2-butene Toxicity Data With Reference

1.	orl-rat LDLo:1000 mg/kg	DOWCC* Dow Chemical Company Reports. (Dow Chemical U.S.A., Health and Environment Research, Toxicology Research Lab., Midland, MI 48640)
2.	ihl-rat LC50:16 ppm/4H	BJANAD British Journal of Anesthesia. 37 (1965),716.
3.	ihl-mus LC50:26 ppm/4H	BJANAD British Journal of Anesthesia. 37 (1965),716.
4.	ihl-dog LC50:182 ppm/4H	JETOAS Journal Europeen de Toxicologie. 4 (1971),517.
5.	ihl-mky LC50:54 ppm/3H	ANESAV Anesthesiology. 26 (1965),140.

2,3-Dichlorohexafluoro-2-butene Safety Profile

Poison by inhalation. Moderately toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl⁻ and F⁻.Safety information of (E)-2,3-Dichloro-1,1,1,4,4,4-hexafluorobut-2-ene (CAS NO.303-04-8):
Hazard Codes Very T+,T, Corrosive C, Irritant Xi
Risk Statements
26 Very Toxic by inhalation
34 Causes burns
Safety Statements
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
28 After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36/37/39 Wear suitable protective clothing, gloves and eye/face protection
45 In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
RIDADR UN 3389 6.1/PG 1
WGK Germany 3
RTECS EM4910000
Hazard Note Irritant
HazardClass 8
PackingGroup III