40277-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40277-68-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,7 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40277-68:
(7*4)+(6*0)+(5*2)+(4*7)+(3*7)+(2*6)+(1*8)=107
107 % 10 = 7
So 40277-68-7 is a valid CAS Registry Number.