73991-27-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73991-27-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,9,9 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 73991-27:
(7*7)+(6*3)+(5*9)+(4*9)+(3*1)+(2*2)+(1*7)=162
162 % 10 = 2
So 73991-27-2 is a valid CAS Registry Number.