81788-35-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81788-35-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,8 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81788-35:
(7*8)+(6*1)+(5*7)+(4*8)+(3*8)+(2*3)+(1*5)=164
164 % 10 = 4
So 81788-35-4 is a valid CAS Registry Number.