introduction：
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product introduction:
formula： c4h9br
molecular weight：137.03
hazard class: 3
cas no.： 109-65-9
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specification:
appearance：colorless transparent liquid
purity：≥99.5%
water：≤0.05%
color (apha): ≤20
non-volatile residue (%): ≤0.001
free acid (%): ≤0.005
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package: 250kg/200 l plastic drum
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application: organic synthesis intermediate.