821-10-3, CAS No 821-10-3

821-10-3 1,4-Dichloro-2-butyne
Product Name	1,4-Dichloro-2-butyne
Synonyms	Dichlorobutyne;1,4-dichlorobut-2-yne;1,4-dichlorobut-1-yne
Molecular Formula	C₄H₄Cl₂
Molecular Weight	122.9806
InChl	InChI=1/C4H4Cl2/c5-3-1-2-4-6/h1,3H2
CAS Registry Number	821-10-3
EINECS	212-474-8
Molecular Structure
Density	1.222g/cm³
Boiling Point	135.4°C at 760 mmHg
Refractive Index	1.474
Flash Point	39.7°C
Vapour Pressur	9.56mmHg at 25°C
Hazard Symbols	T##Toxic:;
Risk Codes	R23/24/25\|\|R36/37/38\|\|R40:;
Safety Description	S26\|\|S28A\|\|S36/37/39\|\|S38\|\|S45:;

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