xanthene

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Related to Xanthenes: Xanthines

xan·thene

(zan'thēn),
1. The basic structure of many natural products, drugs, dyes (for example, fluorescein, pyronin, eosins), indicators, pesticides, antibiotics, etc.
2. A class of molecules based upon xanthene (1).

xanthene

[zan′thēn]
Etymology: Gk, xanthos, yellow
a crystalline organic compound in which two benzene rings are fused to a central pyran ring. The pyran oxygen bridges the two benzene rings. It is a parent chemical structure of many medicinal elements.

xan·thene

(zan'thēn)
The basic structure of many natural products, drugs, dyes (e.g., fluorescein, pyronin, eosins), indicators, pesticides, and antibiotics.

xan·thene

(zan'thēn)
Basic structure of many natural products, drugs, dyes (e.g., fluorescein, pyronin, eosins), indicators, pesticides, and antibiotics.
References in periodicals archive ?
Biopharmaceutical company Provectus Biopharmaceuticals (NYSE MKT:PVCT) reported on Monday the receipt of a Notice of Allowance from the US Patent and Trademark Office covering additional aspects of its process for synthesizing halogenated xanthenes, the family of compound to which rose bengal belongs.
It is due to diverse secondary metabolites like polyphenols terpenoids flavonoids quinonoids and xanthenes that have been reported previously to neutralize snake poison (Asad et al.
Xanthenes dyes are widely used, mainly for optical sensing of [O.
According to the company, the patent details a new process for the manufacture of Rose Bengal and related iodinated xanthenes in high purity and was allowed in June 2013.
In addition, the company said the patent covers the process under which pharmaceutical grade Rose Bengal and related xanthenes are produced, reducing the formation of certain unknown transhalogenated impurities that currently exist in commercial grade Rose Bengal in uncontrolled amounts.
Xanthenes have been isolated from the root (Galeffi et al.
The company's patent application entitled, 'Process for the Synthesis of 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (Rose Bengal) and Related Xanthenes' details a new process for the manufacture of Rose Bengal and related iodinated xanthenes in high purity.
M2 PHARMA-June 5, 2013-Provectus Pharmaceuticals Inc awarded patent allowance to manufacture Rose Bengal and related xanthenes in the US(C)2013 M2 COMMUNICATIONS
M2 EQUITYBITES-June 5, 2013-Provectus Pharmaceuticals Inc awarded patent allowance to manufacture Rose Bengal and related xanthenes in the US(C)2013 M2 COMMUNICATIONS http://www.