71573-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71573-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,7 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71573-81:
(7*7)+(6*1)+(5*5)+(4*7)+(3*3)+(2*8)+(1*1)=134
134 % 10 = 4
So 71573-81-4 is a valid CAS Registry Number.
71573-81-4Relevant articles and documents
Method for preparing diphenyldialkoxysilane
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Paragraph 0039-0042, (2018/11/03)
The invention discloses a method for preparing diphenyldialkoxysilane, and the method comprises the following steps: adding a certain proportion of diphenyldichlorosilane and an acid binding agent A in a non-aqueous solvent, further adding a certain propo