23071-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23071-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,7 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23071-91:
(7*2)+(6*3)+(5*0)+(4*7)+(3*1)+(2*9)+(1*1)=82
82 % 10 = 2
So 23071-91-2 is a valid CAS Registry Number.