1678-52-0

Basic information

• Product Name: DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97
• Synonyms: DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97;DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97%;Diethyl pyridine-3,4-dicarboxylate, 97%;3,4-Pyridinedicarboxylic acid diethyl ester;Pyridine-3,4-dicarboxylic acid diethyl ester;Diethyl 3,4-pyridinedicarboxylate;Diethyle3, 4-pyridinedicarboxylate
• CAS NO: 1678-52-0
• Molecular Formula: C₁₁H₁₃NO₄
• Molecular Weight: 223.22522
• Mol File: 1678-52-0.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 172°C/21mm
• Flash Point: 172°C/21mm
• Appearance: Clear colorless to yellow/Liquid
• Density: 1.145
• Vapor Pressure: 0.00166mmHg at 25°C
• Refractive Index: 1.496
• Storage Temp.: Inert atmosphere,Room Temperature
• PKA: 1.26±0.18(Predicted)
• CAS DataBase Reference: DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97(CAS DataBase Reference)
• NIST Chemistry Reference: DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97(1678-52-0)
• EPA Substance Registry System: DIETHYL 3 4-PYRIDINEDICARBOXYLATE 97(1678-52-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• Hazardous Substances Data: 1678-52-0(Hazardous Substances Data)

Usage

Uses

Diethyl 3,4-pyridinedicarboxylate is a disperse dye. Dyes and metabolites.

InChI:InChI=1/C11H13NO4/c1-3-15-10(13)8-5-6-12-7-9(8)11(14)16-4-2/h5-7H,3-4H2,1-2H3

Upstream product

• 490-11-9 3,4-pyridinecarboxylic acid 
• 64-17-5 ethanol 

Downstream Products

• 1393686-93-5 2-(4-nitrophenyl)sulfonyl-1,3-dihydropyrrolo[3,4-c]pyridine 
• 38070-81-4 3,4-bis(chloromethyl)pyridine 
• 1003933-98-9 ethyl 8-(benzyloxy)-5-(4'-{[(tert-butoxycarbonyl)amino]methyl}biphenyl-4-yl)-7-oxo-7,8-dihydro-1,8-naphthyridine-4-carboxylate 
• 65252-12-2 O-ethyl-N,N'-diphenyl-isourea 
• 76240-10-3 ethyl 3(4)-<(NN'-diphenylamidino)carbamoyl>pyridine-4(3)-carboxylate 
• 76240-09-0 ethyl-4(3)-<(NN'-diphenylamidino)carbamoyl>pyridine-3(4)-carboxylate 
• 102-07-8 bis(diphenyl)urea 
• 38070-80-3 [3-(hydroxymethyl)-4-pyridyl]methanol 

Relevant articles and documents

4,4',5,5'-tetracarboxy-2,2'-bipyridine Ru(II) sensitizers for dye-sensitized solar cells

Two Ru(II) sensitizers TCR-1 and TCR-2 bearing four carboxy anchoring groups were prepared using 4,4',5,5'-tetraethoxycarbonyl-2,2'-bipyridine chelate and 4-(5-hexylthien-2-yl)-2-(3-trifluoromethyl-1H-pyrazol-5-yl)pyridine and 6-t-butyl-1-(3-trifluoromethyl-1H-pyrazol-5-yl)isoquinoline, respectively. Dissolution of these sensitizers in DMF solution afforded a light green solution up to 10-5 M, for which their color gradually turned red upon further dilution and deposition on the surface of a TiO2 photoanode due to the spontaneous deprotonation of carboxylic acid groups. These sensitizers were characterized using electrochemical means and structural analysis time-dependent density functional theory (TDDFT) simulation and were also subjected to actual device fabrication. The as-fabricated DSC devices showed overall efficiencies η = 6.16% and 6.23% versus their 4,4'-dicarboxy counterparts TFRS-2 and TFRS-52 with higher efficiencies of 7.57% and 8.09%, using electrolyte with 0.2 M LiI additive. Their inferior efficiencies are possibly caused by the combination of blue-shifted absorption on TiO 2, inadequate dye loading, and the perpendicularly oriented central carboxy groups.