871700-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871700-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,7,0 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 871700-55:
(8*8)+(7*7)+(6*1)+(5*7)+(4*0)+(3*0)+(2*5)+(1*5)=169
169 % 10 = 9
So 871700-55-9 is a valid CAS Registry Number.