719307-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 719307-20-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,1,9,3,0 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 719307-20:
(8*7)+(7*1)+(6*9)+(5*3)+(4*0)+(3*7)+(2*2)+(1*0)=157
157 % 10 = 7
So 719307-20-7 is a valid CAS Registry Number.