An acute oral LD50 in rats was reported as 1.25 ml/kg(0.82-189 ml/kg). The acute dermal LD50 was reported as > 6 ml/kg in the rabbit
???? ??
KE-03670
????(GHS):
?? ?:
Warning
??·?? ??:
??
??·?? ??
?? ??
??
?? ?
?? ??
P- ??
H227
??? ??
??? ??
?? 4
??
P210, P280, P370+P378, P403+P235,P501
H302
??? ???
?? ?? ?? - ??
?? 4
??
P264, P270, P301+P312, P330, P501
??????:
P264
?? ??? ?? ??? ????.
P264
?? ??? ?? ??? ????.
P270
? ??? ??? ??? ???, ???? ???? ???.
P403+P235
??? ? ?? ?? ???? ???? ?????.
P501
...? ??? / ??? ?? ???.
NFPA 704
2
2
0
?????? C??? ??, ??, ??
??? ??
CLEAR YELLOWISH TO BROWN LIQUID
??
Apparently has not been reported to occur in nature.
??
Beta-Bromostyrene, cis + trans is an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.
?? ??
By the action of aqueous alkali on cinnamic acid dibromide.
?? ??
β-Bromostyrene is an α,β-unsaturated aromatic halide. It can be synthesized by catalytic Hunsdiecker reaction (CHR) of cinnamic acid. It is commonly utilized as a precursor for preparing substituted alkenes, corresponding acetylenes and also in the total synthesis of natural compounds and antibiotics.