203792-49-8 Usage
General Description
1H-Pyrazole-3-carboxylic acid, 5-(chlorocarbonyl)-1-methyl-, methyl ester (9CI) is a chemical compound with the molecular formula C8H9ClN2O2. It is a methyl ester derivative of pyrazole-3-carboxylic acid that contains a chlorocarbonyl group at the 5th position and a methyl group at the 1st position of the pyrazole ring. 1H-Pyrazole-3-carboxylic acid, 5-(chlorocarbonyl)-1-methyl-, methyl ester (9CI) is commonly used as a building block or intermediate in the synthesis of various pharmaceuticals and agrochemicals. It also has potential applications in medicinal chemistry and drug discovery research. As a chlorocarbonyl derivative, it may exhibit reactivity towards nucleophiles, making it useful in organic synthesis for the formation of new carbon-carbon or carbon-heteroatom bonds.
Check Digit Verification of cas no
The CAS Registry Mumber 203792-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,7,9 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203792-49:
(8*2)+(7*0)+(6*3)+(5*7)+(4*9)+(3*2)+(2*4)+(1*9)=128
128 % 10 = 8
So 203792-49-8 is a valid CAS Registry Number.
InChI:InChI=1/C7H7ClN2O3/c1-10-5(6(8)11)3-4(9-10)7(12)13-2/h3H,1-2H3
203792-49-8Relevant articles and documents
Contrast agents for myocardial perfusion imaging
-
Page/Page column 46, (2010/02/13)
The present disclosure is directed, in part, to compounds and methods for imaging myocardial perfusion, comprising administering to a patient a contrast agent which comprises a compound that binds MC-1, and an imaging moiety, and scanning the patient using diagnostic imaging.
Synthesis and Characterization of Masked Aminopyrazolecarboxylic Acid Synthons
Lee, Ho H.,Cain, Bruce F.,Denny, William A.,Buckleton, John S.,Clark, George R.
, p. 428 - 431 (2007/10/02)
The synthesis of the masked aminopyrazolecarboxylic acid synthons (11a,b and 12a,b) from pyrazole-3,5-dicarboxylic acid (6) and the determination of their structures by X-ray crystallography are detailed.The compounds are useful for the synthesis of polypyrazolecarboxamides analogous to the DNA minor groove binding antibiotics distamycin A and netropsin.
