639058-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 639058-93-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,0,5 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 639058-93:
(8*6)+(7*3)+(6*9)+(5*0)+(4*5)+(3*8)+(2*9)+(1*3)=188
188 % 10 = 8
So 639058-93-8 is a valid CAS Registry Number.