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1-(3-chlorophenyl)-3,5-dimethyl-1H-pyrazolo[4,3-c]quinolin-4(5H)-one is a complex organic compound with a molecular formula of C18H14ClN3O. It is a derivative of pyrazoloquinoline, which is a heterocyclic compound with a pyrazole and a quinoline fused together. The structure features a 3-chlorophenyl group attached to the pyrazoloquinoline core, along with two methyl groups at positions 3 and 5. 1-(3-chlorophenyl)-3,5-dimethyl-1H-pyrazolo[4,3-c]quinolin-4(5H)-one is known for its potential applications in medicinal chemistry, particularly as a precursor in the synthesis of various biologically active molecules. Its chemical properties and reactivity are influenced by the presence of the chlorine atom, which can participate in substitution reactions, and the electron-donating methyl groups, which can affect the compound's stability and interaction with other molecules.

98990-73-9

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98990-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98990-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,9 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98990-73:
(7*9)+(6*8)+(5*9)+(4*9)+(3*0)+(2*7)+(1*3)=209
209 % 10 = 9
So 98990-73-9 is a valid CAS Registry Number.

98990-73-9Downstream Products

98990-73-9Relevant academic research and scientific papers

Ring closure reactions of 3-arylhydrazonoalkyl-quinolin-2-ones to 1-aryl-pyrazolo[4,3-c]quinolin-2-ones

Stadlbauer, Wolfgang,Hojas, Gerhard

, p. 681 - 690 (2007/10/03)

4-Hydroxy-3-arylhydrazonoalkyl-2-quinolones 6 or reactive derivatives such as 3-arylhydrazonoalkyl-4-tosyloxy-2-quinolones 7 or 4-chloro-3- arylhydrazonoalkyl-2-quinolones 14, which are obtained via 3-acyl-4- hydroxyquinolones 4, 10 or 3-phenylaminomethylene-quinoline-2,4-diones 12, cyclize in excellent yields to 1-aryl-pyrazolo[4,3-c]quinolin-4-ones (11). The cyclization conditions were investigated by differential scanning calorimetry (DSC).

Pyrazoloquinolines. 2. Synthesis and Specific Inhibition of Benzodiazepine Receptor Binding

Melani, Fabrizio,Cecchi, Lucia,Palazzino, Giovanna,Filacchioni, Guido,Martini, Claudia,et al..

, p. 291 - 295 (2007/10/02)

A series of 1-aryl-3,5-dimethyl-4,5-dihydro-1H-pyrazoloquinolin-4-ones (2a-e) and 1-aryl-3-methyl-1H-pyrazoloquinolines (3-7a-e) bearing different substituents at position 4 were prepared and tested for their ability to displace specific 3H

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