639465-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 639465-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,4,6 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 639465-51:
(8*6)+(7*3)+(6*9)+(5*4)+(4*6)+(3*5)+(2*5)+(1*1)=193
193 % 10 = 3
So 639465-51-3 is a valid CAS Registry Number.