64381-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64381-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,3,8 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 64381-19:
(7*6)+(6*4)+(5*3)+(4*8)+(3*1)+(2*1)+(1*9)=127
127 % 10 = 7
So 64381-19-7 is a valid CAS Registry Number.