N719
Synonym(s):N-719 dye
- CAS NO.：207347-46-4
- Empirical Formula: 2C16H36N.2C12H7N2O4.C2N2RuS2
- Molecular Weight: 1188.57
- MDL number: MFCD11042475
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:22
What is N719?
Description
Di-tetrabutylammonium cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II), N719 dye, is the ammonium salt of N3 dye.?With changes to increase cell voltage and solubility in polar solvents comparing with N3 dye, N719 dye is also one of the most common high performance dyes that are developed for DSSC solar cells.
The Uses of N719
N-719 dye is widely used as a sensitizer that can be coated on indium tin oxide (ITO) substrates by doctor blade technique, with different photoanode materials like titanium oxide (TiO2), zinc oxide (ZnO), and gold nanourchin for dye sensitized solar cell (DSSC) applications.
General Description
Di-tetrabutylammonium?cis-bis(isothiocyanato)bis(2,2′-bipyridyl-4,4′-dicarboxylato)ruthenium(II) (N-719 dye) is a ruthenium based polypyridyl mixture used as a photosensitizer. It acts as a medium for effective absorption of photons and transfer of electrons within the electrolytic solar cells.
Properties of N719
| Melting point: | 250-260°C |
| storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
| form | Solid |
| color | Black |
| Stability: | Light Sensitive |
| CAS DataBase Reference | 207347-46-4 |
| solubility | Ethanol or acetonitrile/tert-butanol (1:1, v:v) |
Safety information for N719
| Signal word | Danger |
| Pictogram(s) |
 Health Hazard GHS08 |
| GHS Hazard Statements |
H334:Sensitisation, respiratory |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P342+P311:IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
Computed Descriptors for N719
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