155808-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155808-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,0 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 155808-74:
(8*1)+(7*5)+(6*5)+(5*8)+(4*0)+(3*8)+(2*7)+(1*4)=155
155 % 10 = 5
So 155808-74-5 is a valid CAS Registry Number.