1207543-30-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1207543-30-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,7,5,4 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1207543-30:
(9*1)+(8*2)+(7*0)+(6*7)+(5*5)+(4*4)+(3*3)+(2*3)+(1*0)=123
123 % 10 = 3
So 1207543-30-3 is a valid CAS Registry Number.