320780-86-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 320780-86-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,0,7,8 and 0 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 320780-86:
(8*3)+(7*2)+(6*0)+(5*7)+(4*8)+(3*0)+(2*8)+(1*6)=127
127 % 10 = 7
So 320780-86-7 is a valid CAS Registry Number.