156155-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156155-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,1,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156155-54:
(8*1)+(7*5)+(6*6)+(5*1)+(4*5)+(3*5)+(2*5)+(1*4)=133
133 % 10 = 3
So 156155-54-3 is a valid CAS Registry Number.