87091-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87091-22-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,0,9 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87091-22:
(7*8)+(6*7)+(5*0)+(4*9)+(3*1)+(2*2)+(1*2)=143
143 % 10 = 3
So 87091-22-3 is a valid CAS Registry Number.