6607-18-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6607-18-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,0 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6607-18:
(6*6)+(5*6)+(4*0)+(3*7)+(2*1)+(1*8)=97
97 % 10 = 7
So 6607-18-7 is a valid CAS Registry Number.