78207-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78207-83-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,2,0 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78207-83:
(7*7)+(6*8)+(5*2)+(4*0)+(3*7)+(2*8)+(1*3)=147
147 % 10 = 7
So 78207-83-7 is a valid CAS Registry Number.