27996-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27996-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,9 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 27996-91:
(7*2)+(6*7)+(5*9)+(4*9)+(3*6)+(2*9)+(1*1)=174
174 % 10 = 4
So 27996-91-4 is a valid CAS Registry Number.