155817-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 155817-39-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,8,1 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 155817-39:
(8*1)+(7*5)+(6*5)+(5*8)+(4*1)+(3*7)+(2*3)+(1*9)=153
153 % 10 = 3
So 155817-39-3 is a valid CAS Registry Number.