287734-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287734-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,7,3 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 287734-85:
(8*2)+(7*8)+(6*7)+(5*7)+(4*3)+(3*4)+(2*8)+(1*5)=194
194 % 10 = 4
So 287734-85-4 is a valid CAS Registry Number.