177763-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177763-55-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,7,6 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 177763-55:
(8*1)+(7*7)+(6*7)+(5*7)+(4*6)+(3*3)+(2*5)+(1*5)=182
182 % 10 = 2
So 177763-55-2 is a valid CAS Registry Number.