87764-67-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87764-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,6 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87764-67:
(7*8)+(6*7)+(5*7)+(4*6)+(3*4)+(2*6)+(1*7)=188
188 % 10 = 8
So 87764-67-8 is a valid CAS Registry Number.