K19 Dye

CAS #:

Linear Formula:


MDL Number:


EC No.:



Cis-bis(thiocyanato)(2,2'-bipyridyl-4,4'-dicarboxylic acid) (4,4'-bis(phexyloxystyryl)-2,2'-bipyridine)ruthenium(II)
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K19 Dye Properties (Theoretical)

Compound Formula C52H52N6O6RuS2
Molecular Weight 1022.2
Appearance Dark brown to black powder
Melting Point >300 °C
Boiling Point N/A
Density N/A
Solubility in H2O N/A
Exact Mass 1022.243316 g/mol
Monoisotopic Mass 1022.243316 g/mol

K19 Dye Health & Safety Information

Signal Word Warning
Hazard Statements H315-H317-H319-H335
Hazard Codes Xi
Precautionary Statements P261-P280-P305+P351+P338
RTECS Number N/A
Transport Information NONH for all modes of transport
WGK Germany 3
GHS Pictograms

About K19 Dye

K19 Dye, or cis-bis(thiocyanato)(2,2'-bipyridyl-4,4'-dicarboxylic acid)(4,4'-bis(phexyloxystyryl)-2,2'-bipyridine)ruthenium(II), is a ruthenium-based organometallic complex used for high-efficiency dye-sensitized solar cells (DSSCs). Please request a quote above to receive pricing information based on your specifications.

K19 Dye Synonyms

K-19 sensitizer, Ru(4,4-dicarboxylic acid-2,2′-bipyridine)(4,4′-bis(p-hexyloxystyryl)-2,2-bipyridine)(NCS)2

Chemical Identifiers

Linear Formula C52H52N6O6RuS2
MDL Number N/A
EC No. 805-996-8
Pubchem CID 124202874
IUPAC Name 2-(4-carboxypyridin-2-yl)pyridine-4-carboxylic acid; 4-[(E)-2-(4-hexoxyphenyl)ethenyl]-2-[4-[(E)-2-(4-hexoxyphenyl)ethenyl]pyridin-2-yl]pyridine; ruthenium(2+); diisothiocyanate
SMILES CCCCCCOC1=CC=C(C=C1)C=CC2=CC(=NC=C2)C3=NC=CC(=C3)C=CC4=CC=C(C=C4)OCCCCCC.C1=CN=C(C=C1C(=O)O)C2=NC=CC(=C2)C(=O)O.C(=[N-])=S.C(=[N-])=S.[Ru+2]
InchI Identifier InChI=1S/C38H44N2O2.C12H8N2O4.2CNS.Ru/c1-3-5-7-9-27-41-35-19-15-31(16-20-35)11-13-33-23-25-39-37(29-33)38-30-34(24-26-40-38)14-12-32-17-21-36(22-18-32)42-28-10-8-6-4-2;15-11(16)7-1-3-13-9(5-7)10-6-8(12(17)18)2-4-14-10;2*2-1-3;/h11-26,29-30H,3-10,27-28H2,1

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


See more Nitrogen products. Nitrogen is a Block P, Group 15, Period 2 element. Its electron configuration is [He]2s22p3. Nitrogen is an odorless, tasteless, colorless and mostly inert gas. It is the seventh most abundant element in the universe and it constitutes 78.09% (by volume) of Earth's atmosphere. Nitrogen was discovered by Daniel Rutherford in 1772.


See more Ruthenium products. Ruthenium (atomic symbol: Ru, atomic number: 44) is a Block D, Group 8, Period 5 element with an atomic weight of 101.07. Ruthenium Bohr ModelThe number of electrons in each of ruthenium's shells is [2, 8, 18, 15, 1] and its electron configuration is [Kr] 4d7 5s1. The ruthenium atom has a radius of 134 pm and a Van der Waals radius of 207 pm. Ruthenium was discovered by Jędrzej Śniadecki in 1807. It was first recognized as a distinct element by Karl Ernst Claus in 1844. Elemental RutheniumIn its elemental form, ruthenium has a silvery white metallic appearance. Ruthenium is a rare transition metal belonging to the platinum group of metals. It is found in pentlandite, pyroxenite, and platinum group metal ores. The name Ruthenium originates from the Latin word "Ruthenia," meaning Russia.


See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.


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