1274947-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1274947-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,4,9,4 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1274947-91:
(9*1)+(8*2)+(7*7)+(6*4)+(5*9)+(4*4)+(3*7)+(2*9)+(1*1)=199
199 % 10 = 9
So 1274947-91-9 is a valid CAS Registry Number.