1274904-26-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1274904-26-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,4,9,0 and 4 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1274904-26:
(9*1)+(8*2)+(7*7)+(6*4)+(5*9)+(4*0)+(3*4)+(2*2)+(1*6)=165
165 % 10 = 5
So 1274904-26-5 is a valid CAS Registry Number.