XANTHENE

PRODUCT IDENTIFICATION
CAS NO. 92-83-1

XANTHENE
EINECS NO. 202-194-4
FORMULA CH2(C6H4)2O
MOL WT. 182.22
H.S. CODE  
TOXICITY  
SYNONYMS 9H-Xanthene; Dibenzopyran; Tricyclic Dibenzopyran;
SMILES

 

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE off-white crystals
MELTING POINT 101 - 102 C
BOILING POINT 310 - 312 C
SPECIFIC GRAVITY

 
SOLUBILITY IN WATER Soluble (Soluble in alcohol)
pH  
VAPOR DENSITY  

AUTOIGNITION

 

NFPA RATINGS

 Health: 2; Flammability: 0; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

 
STABILITY Stable under ordinary conditions ( light sensitive)

GENERAL DESCRIPTION & APPLICATIONS
Xanthene is a polyaromatic cyclic ether compound which have one oxygen in the ring system.  Two benzene rings are fused to tetrahydropyran which is a six membered cyclic ether with  five carbons and one oxygen. It is soluble alcohol and ether. Pyran ring structure is the basis of the pyranoses. Xanthene is used as a fungicide itself. But the main function is as the fundamental structure of chromophore particularly luminescent dyes.  Xanthene class dyes include fluorenes, pyronins, succineins, sacchareins, rosamines, rhodamines, rhodols and fluorones.  Xanthone is the xanthene ketone. It is used as an ovicide and as a larvicide. Thioxanthone is the sulfur analogue of xanthone. An sulfur atom exists on the ring system instead of an oxygen atom. Xanthene structure provides characteristic property of spectroscopic photodynamic activity. Its derivatives are widely used in biological stains, light and temperature sensitizers, photoinitiator of polymerization process, histotechnologies, photochromic and thermochromic agents and laser dyes as well as in molecular chemistry and organometallic-complexes.
SALES SPECIFICATION

APPEARANCE

 off-white crystals
CONTENT

98.0% min
TRANSPORTATION
PACKING 25kgs in fiber drum
HAZARD CLASS  
UN NO. 3335
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 42/43, Safety Phrases: 22-36/37-45