1581704-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1581704-70-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,8,1,7,0 and 4 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1581704-70:
(9*1)+(8*5)+(7*8)+(6*1)+(5*7)+(4*0)+(3*4)+(2*7)+(1*0)=172
172 % 10 = 2
So 1581704-70-2 is a valid CAS Registry Number.