155982-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155982-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,9,8 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155982-40:
(8*1)+(7*5)+(6*5)+(5*9)+(4*8)+(3*2)+(2*4)+(1*0)=164
164 % 10 = 4
So 155982-40-4 is a valid CAS Registry Number.