156489-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156489-03-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,8 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156489-03:
(8*1)+(7*5)+(6*6)+(5*4)+(4*8)+(3*9)+(2*0)+(1*3)=161
161 % 10 = 1
So 156489-03-1 is a valid CAS Registry Number.