274681-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 274681-77-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,6,8 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 274681-77:
(8*2)+(7*7)+(6*4)+(5*6)+(4*8)+(3*1)+(2*7)+(1*7)=175
175 % 10 = 5
So 274681-77-5 is a valid CAS Registry Number.