89070-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89070-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,0,7 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89070-89:
(7*8)+(6*9)+(5*0)+(4*7)+(3*0)+(2*8)+(1*9)=163
163 % 10 = 3
So 89070-89-3 is a valid CAS Registry Number.
InChI:InChI=1/C20H18O3/c1-11-12-4-2-3-5-13(12)17(10-21)15-6-7-16-14(19(11)15)8-9-18(22)20(16)23/h2-9,18,20-23H,10H2,1H3