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821-10-3

Name 1,4-Dichloro-2-butyne
CAS 821-10-3
EINECS(EC#) 212-474-8
Molecular Formula C4H4Cl2
MDL Number MFCD00000981
Molecular Weight 122.98
MOL File 821-10-3.mol
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Chemical Properties

Appearance CLEAR COLORLESS TO YELLOWISH LIQUID
Melting point  162-165 °C
Boiling point  165-168 °C (lit.)
density  1.258 g/mL at 25 °C(lit.)
refractive index  n20/D 1.505(lit.)
Fp  320 °F
storage temp.  2-8°C
solubility  Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
form  Oil
color  Clear Colourless
Sensitive  Light Sensitive
BRN  635740
InChIKey RCHDLEVSZBOHOS-UHFFFAOYSA-N
CAS DataBase Reference 821-10-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Butyne, 1,4-dichloro-(821-10-3)
EPA Substance Registry System 821-10-3(EPA Substance)

Safety Data

Hazard Codes  Xi,T
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S38:In case of insufficient ventilation, wear suitable respiratory equipment .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
RIDADR  UN 2810
WGK Germany  3
RTECS  ER9600000
F  8-10
HazardClass  6.1
PackingGroup  II
HS Code  29032900
Safety Profile
Poison by intravenous route. When heated to decomposition it emits toxic fumes of Cl-. Probably a dangerous fKe and explosion hazard. See also ACETYLENE COMPOUNDS and CHLORINATED HYDROCARBONS, ALIPHATIC

Hazard Information

Material Safety Data Sheet(MSDS)

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