145439-15-2 Usage
General Description
1-(4-Chloro-1H-indazol-1-yl)ethanone is a chemical compound with the molecular formula C9H7ClN2O. It is a yellow solid with a molecular weight of 198.62 g/mol. 1-(4-Chloro-1H-indazol-1-yl)ethanone is commonly used in the field of pharmaceutical research and development, particularly in the synthesis of potential drug molecules. It contains a chloro-substituted indazole ring, which contributes to its unique chemical properties and potential pharmacological activities. The presence of the ketone functional group in this compound also makes it a valuable intermediate for the synthesis of various organic compounds. Due to its structural features and potential biological activities, 1-(4-Chloro-1H-indazol-1-yl)ethanone is of interest to researchers in the pharmaceutical and chemical industries.
Check Digit Verification of cas no
The CAS Registry Mumber 145439-15-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,4,3 and 9 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 145439-15:
(8*1)+(7*4)+(6*5)+(5*4)+(4*3)+(3*9)+(2*1)+(1*5)=132
132 % 10 = 2
So 145439-15-2 is a valid CAS Registry Number.
InChI:InChI=1/C9H7ClN2O/c1-6(13)12-9-4-2-3-8(10)7(9)5-11-12/h2-5H,1H3
145439-15-2Relevant articles and documents
An improved preparation of 4-chloro-1H-indazole
Meng, Ge,Yang, Tao,Liu, Yang
experimental part, p. 354 - 359 (2011/10/01)
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Aromatic Diazonium Salts, X. - A One-Pot Procedure for the Jacobson Synthesis of Indazole
Ruechardt, Christoph,Hassmann, Volker
, p. 908 - 927 (2007/10/02)
Procedures are described for a one-pot synthesis of 1H-indazole and substituted indazoles 3 in good yield (Table 1) from o-toluidines 2, alkyl nitrite or nitrous oxides, potassium acetate, and acetic anhydride in benzene.The spectroscopic properties of substituted indazoles (Tables 2-4) are discussed. - 4-Phenylcinnoline (18) is prepared by the same procedure from o-(α-methylenebenzyl)aniline.