21563-29-1 Usage
General Description
4-Bromo-1,8-naphthalic anhydride is a chemical compound with the molecular formula C12H5BrO3. It is a derivative of naphthalic anhydride and contains a bromine atom attached to the naphthalic ring. 4-Bromo-1,8-naphthalic anhydride is commonly used as a reagent in organic synthesis and as a precursor for the preparation of various chemicals and materials. It has been studied for its potential use in the development of new pharmaceuticals and functional materials due to its unique chemical properties. 4-Bromo-1,8-naphthalic anhydride has also been used as a fluorescent labeling reagent for proteins and other biomolecules in biological research.
Check Digit Verification of cas no
The CAS Registry Mumber 21563-29-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,6 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21563-29:
(7*2)+(6*1)+(5*5)+(4*6)+(3*3)+(2*2)+(1*9)=91
91 % 10 = 1
So 21563-29-1 is a valid CAS Registry Number.
InChI:InChI=1/C12H5BrO3/c13-9-5-4-8-10-6(9)2-1-3-7(10)11(14)16-12(8)15/h1-5H
21563-29-1Relevant articles and documents
Transformations of polycyclic ketones. XV. Ammonolysis of 4-hydroxyphenalenone
Solodar', S. L.,Vinogradov, L. M.
, p. 1102 - 1104 (2007/10/02)
The ammonolysis of 4-hydroxyphenalenone leads to the formation of a mixture of isomeric 4- and 7-aminophenalenones, from which the corresponding bromophenalenones were synthesized.The structure of the obtained compounds was determined by oxidation to the known 2- and 4-bromonaphthalic anhydrides.
