94972-02-8 Usage
Uses
Used in Pharmaceutical Research:
1H-Pyrazole-3-carboxylic acid, 4-ethyl-, ethyl ester is used as a building block for the development of new drugs and pharmaceuticals due to its unique chemical properties and structural features.
Used in Organic Synthesis:
1H-Pyrazole-3-carboxylic acid, 4-ethyl-, ethyl ester is used as a building block in organic synthesis, allowing for the creation of various chemical compounds.
Used as a Reference Standard in Analytical Chemistry:
1H-Pyrazole-3-carboxylic acid, 4-ethyl-, ethyl ester is used as a reference standard in analytical chemistry, which is important for research and development in the fields of medicinal and organic chemistry.
Check Digit Verification of cas no
The CAS Registry Mumber 94972-02-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,9,7 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 94972-02:
(7*9)+(6*4)+(5*9)+(4*7)+(3*2)+(2*0)+(1*2)=168
168 % 10 = 8
So 94972-02-8 is a valid CAS Registry Number.
94972-02-8Relevant articles and documents
Preparations of 4-substituted 3-carboxypyrazoles
Janin, Yves L.
, p. 1410 - 1414 (2014/01/06)
The scopes of three synthetic methods reported for the preparation of an array of 3-pyrazolecarboxylates featuring substituents on position 4 were investigated. The first one is based on the potassium permanganate oxidation of methylpyrazoles. The second starts with the condensation between DMF dimethylacetal and ethyl pyruvate and is followed by the addition of hydrazine hydrochloride. The last one makes use of the cycloaddition of diazomethane on acrylate esters followed by a bromine-based oxidative rearrangement into 4-substituted 3-pyrazole esters.
