672307-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 672307-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,2,3,0 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 672307-42:
(8*6)+(7*7)+(6*2)+(5*3)+(4*0)+(3*7)+(2*4)+(1*2)=155
155 % 10 = 5
So 672307-42-5 is a valid CAS Registry Number.