2,6-bis(4-carboxypyridin-2-yl)pyridine-4-carboxylic Acid CAS 216018-58-5

Product Description:

Product Name: 2,6-bis(4-carboxypyridin-2-yl)pyridine-4-carboxylic acid CAS NO: 216018-58-5

Synonyms:

4,4',4"-tricarboxy-2,2':6',2"-terpyridine;

2,2':6',2''-pyridine-4,4',4''-tricarboxylic acid;

2,6-bis(4-carboxypyridin-2-yl)pyridine-4-carboxylic acid;

Chemical & Physical Properties:

Appearance: Yellow to green-black solid

Assay :≥99.0%

Density: 1.54g/cm3

Boiling Point: 890.254℃ at 760 mmHg

Melting point: >300℃

Flash Point: 492.208℃

Refractive Index: 1.688

Vapor Pressure: 0mmHg at 25℃

PKa: 1.88±0.10(Predicted)

Storage: Inert atmosphere,Room Temperature

Safety Information:

Signal Word: Warning

Hazard Statements: H315-H319-H335

Precautionary Statements: P261-P305+P351+P338

[2,2':6',2''-Terpyridine]-4,4',4''-tricarboxylic acid is main component of "black dye", which shows much wider frequency response, notably "triscarboxy-ruthenium terpyridine" [Ru(4,4',4"-(COOH)3-terpy)(NCS)3], which is efficient right into the low-frequency range of red and IR light. The wide spectral response results in the dye having a deep brown-black color, and is referred to simply as "black dye".The dyes have an excellent chance of converting a photon into an electron, originally around 80% but improving to almost perfect conversion in more recent dyes, the overall efficiency is about 90%, with the "lost" 10% being largely accounted for by the optical losses in top electrode.

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