178681-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178681-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,6,8 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 178681-63:
(8*1)+(7*7)+(6*8)+(5*6)+(4*8)+(3*1)+(2*6)+(1*3)=185
185 % 10 = 5
So 178681-63-5 is a valid CAS Registry Number.