156820-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156820-88-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,8,2 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 156820-88:
(8*1)+(7*5)+(6*6)+(5*8)+(4*2)+(3*0)+(2*8)+(1*8)=151
151 % 10 = 1
So 156820-88-1 is a valid CAS Registry Number.