529513-66-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 529513-66-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,9,5,1 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 529513-66:
(8*5)+(7*2)+(6*9)+(5*5)+(4*1)+(3*3)+(2*6)+(1*6)=164
164 % 10 = 4
So 529513-66-4 is a valid CAS Registry Number.
InChI:InChI=1/C15H12Cl2O3/c1-19-15-7-10(8-18)5-6-14(15)20-9-11-12(16)3-2-4-13(11)17/h2-8H,9H2,1H3
529513-66-4Relevant articles and documents
Regioselective protection of the 4-hydroxyl of 3,4-dihydroxy-benzaldehyde
Plourde, Guy L.,Spaetzel, Randy R.
, p. 697 - 705 (2002)
The regioselective protection of the 4-hydroxyl group of 3,4-dihydroxy-benzaldehyde was accomplished with seven different protecting groups (benzyl, p-methoxybenzyl, o-nitrobenzyl, 2,6-dichlorobenzyl, 3,4-dichlorobenzyl, vinyl and propargyl) in yields ranging between 67-75percent.