638222-25-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 638222-25-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,2,2 and 2 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 638222-25:
(8*6)+(7*3)+(6*8)+(5*2)+(4*2)+(3*2)+(2*2)+(1*5)=150
150 % 10 = 0
So 638222-25-0 is a valid CAS Registry Number.