278803-40-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 278803-40-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,8,8,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 278803-40:
(8*2)+(7*7)+(6*8)+(5*8)+(4*0)+(3*3)+(2*4)+(1*0)=170
170 % 10 = 0
So 278803-40-0 is a valid CAS Registry Number.