156941-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156941-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,4 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156941-81:
(8*1)+(7*5)+(6*6)+(5*9)+(4*4)+(3*1)+(2*8)+(1*1)=160
160 % 10 = 0
So 156941-81-0 is a valid CAS Registry Number.