4093-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4093-18-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,9 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4093-18:
(6*4)+(5*0)+(4*9)+(3*3)+(2*1)+(1*8)=79
79 % 10 = 9
So 4093-18-9 is a valid CAS Registry Number.
4093-18-9Relevant academic research and scientific papers
Preparation method of 2, 3, 5, 6-tetrachlorobenzoyl chloride
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, (2020/10/04)
The invention discloses a preparation method of 2, 3, 5, 6-tetrachlorobenzoyl chloride, and relates to the field of organic synthesis. The preparation method comprises the following steps of: synthesizing pentachlorobenzene serving as a raw material and m
