912540-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 912540-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,2,5,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 912540-31:
(8*9)+(7*1)+(6*2)+(5*5)+(4*4)+(3*0)+(2*3)+(1*1)=139
139 % 10 = 9
So 912540-31-9 is a valid CAS Registry Number.