12778-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12778-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,7,7 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 12778-19:
(7*1)+(6*2)+(5*7)+(4*7)+(3*8)+(2*1)+(1*9)=117
117 % 10 = 7
So 12778-19-7 is a valid CAS Registry Number.