274691-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 274691-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,6,9 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 274691-23:
(8*2)+(7*7)+(6*4)+(5*6)+(4*9)+(3*1)+(2*2)+(1*3)=165
165 % 10 = 5
So 274691-23-5 is a valid CAS Registry Number.