10-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10-05-9 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 1 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 10-05:
(4*1)+(3*0)+(2*0)+(1*5)=9
9 % 10 = 9
So 10-05-9 is a valid CAS Registry Number.
InChI:InChI=1/C20H24O9/c1-13(22)28-16-8-9-17(26-11-10-21)20(25,18(16)29-14(2)23)12-27-19(24)15-6-4-3-5-7-15/h3-9,16-18,21,25H,10-12H2,1-2H3/t16?,17-,18+,20-/m0/s1