662159-04-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 662159-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,2,1,5 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 662159-04:
(8*6)+(7*6)+(6*2)+(5*1)+(4*5)+(3*9)+(2*0)+(1*4)=158
158 % 10 = 8
So 662159-04-8 is a valid CAS Registry Number.