278167-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 278167-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,8,1,6 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 278167-18:
(8*2)+(7*7)+(6*8)+(5*1)+(4*6)+(3*7)+(2*1)+(1*8)=173
173 % 10 = 3
So 278167-18-3 is a valid CAS Registry Number.