introduction：
product instruction:
structural formula： 
molecular formula：c7h3cl2f3
molecular weight：215.08
cas ：328-84-7
specification:
appearaances: colourless transparent oily liquid, irritant。
content: ≥ 99.0%
moisture: ≤0.03%
package：250kg/ plastic drum
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application:intermediate of pesticide，medicine and dyes