2,9-dimethyl-1,10-phenanthroline, CAS No. 484-11-7

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484-11-7

Catalog No. EBD14384

CAS 484-11-7

Name 2,9-dimethyl-1,10-phenanthroline

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Basic Information

Synonyms: Neocuproine 2,9-Dimethyl-1,10-phenanthrolinehemihydrate Neocuproinehemihydrate neocuproinefreebase 2,9-dimethyl-1,10-phenanthroline TIMTEC-BBSBB008718 2,9-Dimethyl-o-phenanthroline dmphen neo-cuproin neocuproinegr 2,9-neocuproine neocuproinereag neocuproine,reagent

Molecular Formula: C14H12N2

Molecular Weight: 208.26

MDL Number: MFCD00004973

Categories: Synthetic Chemistry > Analytical Chemistry Reagents > Other Analytical Chemistry Reagents Synthetic Chemistry > Organic Building Blocks > Amines

Product Description:

Neocuproine, chemically known as 2,9-dimethyl-1,10-phenanthroline, is a heterocyclic organic compound belonging to the class of phenanthrolines. It is a bidentate chelating ligand, typically forming stable complexes with copper(I) ions. Its primary and most significant application is as a highly specific and sensitive spectrophotometric reagent for the determination of copper(I). The resulting orange-colored [Cu(neocuproine)₂]⁺ complex is extractable into organic solvents, enabling quantitative analysis of trace copper in various matrices, including water, biological samples, alloys, and food products. It is a cornerstone reagent in analytical chemistry for copper assays. Beyond its analytical use, neocuproine serves as a versatile ligand in coordination chemistry and catalysis research. Its steric hindrance from the methyl groups at the 2 and 9 positions influences the geometry and reactivity of its metal complexes, making it useful in studies of electron transfer processes and as a model system in bioinorganic chemistry.

Physical Properties

Color: white to beige

Melting Point: 159-164 °C

Boiling Point: 367.4 °C at 760 mmHg

Flash Point: 159.7 °C

Density: 1.178 g/cm3

Solubility: methanol: 0.1 g/mL, clear

Analytical Data

Appearance: off-white to very pale yellow crystalline powder