287381-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 287381-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,7,3,8 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 287381-34:
(8*2)+(7*8)+(6*7)+(5*3)+(4*8)+(3*1)+(2*3)+(1*4)=174
174 % 10 = 4
So 287381-34-4 is a valid CAS Registry Number.