86639-32-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 86639-32-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,6,3 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 86639-32:
(7*8)+(6*6)+(5*6)+(4*3)+(3*9)+(2*3)+(1*2)=169
169 % 10 = 9
So 86639-32-9 is a valid CAS Registry Number.