667883-24-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667883-24-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,8 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 667883-24:
(8*6)+(7*6)+(6*7)+(5*8)+(4*8)+(3*3)+(2*2)+(1*4)=221
221 % 10 = 1
So 667883-24-1 is a valid CAS Registry Number.