12207-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12207-55-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,0 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12207-55:
(7*1)+(6*2)+(5*2)+(4*0)+(3*7)+(2*5)+(1*5)=65
65 % 10 = 5
So 12207-55-5 is a valid CAS Registry Number.