23711-70-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23711-70-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,7,1 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23711-70:
(7*2)+(6*3)+(5*7)+(4*1)+(3*1)+(2*7)+(1*0)=88
88 % 10 = 8
So 23711-70-8 is a valid CAS Registry Number.