19532-38-8 Usage
General Description
Ethyl 1-(4-nitrophenyl)-1H-pyrazole-3-carboxylate is a chemical compound with the molecular formula C12H10N4O4. It is used in organic synthesis and pharmaceutical research. Ethyl 1-(4-nitrophenyl)-1H-pyrazole-3-carboxylate is a pyrazole derivative, which is a class of molecules that have various biological activities. Its structure contains a nitrophenyl group, which can make it useful in the development of potential drugs or pesticides. It is important to handle this compound with caution, as it may have hazardous properties and should be used in a controlled laboratory setting.
Check Digit Verification of cas no
The CAS Registry Mumber 19532-38-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,5,3 and 2 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 19532-38:
(7*1)+(6*9)+(5*5)+(4*3)+(3*2)+(2*3)+(1*8)=118
118 % 10 = 8
So 19532-38-8 is a valid CAS Registry Number.
19532-38-8Relevant articles and documents
Regioselective Synthesis, NMR, and Crystallographic Analysis of N1-Substituted Pyrazoles
Huang, Adrian,Wo, Kellie,Lee, So Yeun Christine,Kneitschel, Nika,Chang, Jennifer,Zhu, Kathleen,Mello, Tatsiana,Bancroft, Laura,Norman, Natalie J.,Zheng, Shao-Liang
, p. 8864 - 8872 (2017/09/11)
A systematic study of the N-substitution reactions of 3-substituted pyrazoles under basic conditions has been undertaken. Regioselective N1-alkylation, -arylation, and -heteroarylation of 3-substituted pyrazoles have been achieved using K2CO3-DMSO. The regioselectivity is justified by the DFT calculations at the B3LYP/6-31G??(d) level. A consistent steric effect on chemical shift has been observed for N-alkyl pyrazole analogues. Twenty-five X-ray crystallographic structures have been obtained to confirm the regiochemistry of the major products.
