155662-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155662-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,6 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 155662-50:
(8*1)+(7*5)+(6*5)+(5*6)+(4*6)+(3*2)+(2*5)+(1*0)=143
143 % 10 = 3
So 155662-50-3 is a valid CAS Registry Number.