270931-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 270931-84-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,0,9,3 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 270931-84:
(8*2)+(7*7)+(6*0)+(5*9)+(4*3)+(3*1)+(2*8)+(1*4)=145
145 % 10 = 5
So 270931-84-5 is a valid CAS Registry Number.