638142-02-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638142-02-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,4 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 638142-02:
(8*6)+(7*3)+(6*8)+(5*1)+(4*4)+(3*2)+(2*0)+(1*2)=146
146 % 10 = 6
So 638142-02-6 is a valid CAS Registry Number.