116549-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116549-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,5,4 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 116549-74:
(8*1)+(7*1)+(6*6)+(5*5)+(4*4)+(3*9)+(2*7)+(1*4)=137
137 % 10 = 7
So 116549-74-7 is a valid CAS Registry Number.