78583-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78583-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,5,8 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78583-91:
(7*7)+(6*8)+(5*5)+(4*8)+(3*3)+(2*9)+(1*1)=182
182 % 10 = 2
So 78583-91-2 is a valid CAS Registry Number.