177616-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177616-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,6,1 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 177616-22:
(8*1)+(7*7)+(6*7)+(5*6)+(4*1)+(3*6)+(2*2)+(1*2)=157
157 % 10 = 7
So 177616-22-7 is a valid CAS Registry Number.