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3,6-Pyridazinedicarboxylic acid, 1,4-dihydro-4-phenyl-, dimethyl ester is a complex organic compound with the chemical formula C13H13N2O4. It is a derivative of pyridazine, a heterocyclic compound consisting of a six-membered aromatic ring containing two nitrogen atoms. The 1,4-dihydro-4-phenyl substitution indicates that the compound has a phenyl group attached to the fourth position of the pyridazine ring, and the molecule is partially saturated at the first and fourth positions. The dimethyl ester functional group is present, meaning that two methyl groups are attached to the carboxylic acid groups at the 3 and 6 positions of the pyridazine ring, forming esters. 3,6-Pyridazinedicarboxylic acid, 1,4-dihydro-4-phenyl-, dimethyl ester is known for its potential applications in pharmaceuticals and chemical research, particularly in the synthesis of various biologically active molecules.

2166-18-9

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2166-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2166-18-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,6 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2166-18:
(6*2)+(5*1)+(4*6)+(3*6)+(2*1)+(1*8)=69
69 % 10 = 9
So 2166-18-9 is a valid CAS Registry Number.

2166-18-9Downstream Products

2166-18-9Relevant academic research and scientific papers

Activated pyrroles from pyridazines: Nitrogen extrusion by electroreduction

Manh,Hazard,Pradère,Tallec,Raoult,Dubreuil

, p. 647 - 650 (2000)

The bielectronic electrochemical reduction of pyridazines, substituted by electron-withdrawing groups, leads to their corresponding 1,2-dihydro derivatives. Depending on the nature of the ring substitution, these intermediates can either rearrange into 1,

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