274902-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 274902-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,9,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 274902-91:
(8*2)+(7*7)+(6*4)+(5*9)+(4*0)+(3*2)+(2*9)+(1*1)=159
159 % 10 = 9
So 274902-91-9 is a valid CAS Registry Number.