Thursday, 17 November 2011

Understand a fluorene derivative – 2,7–dibromo–9,9'–spirofluorene


The molecular formula chemical compound 2,7–dibromo–9,9'–spirofluorene‏ is C25H14Br2. It comes under the category of fluorene derivatives or fluorene series. It is also known as 2,7–Dibromo–9,9–Spirobifluorene. Its other synonyms are 2,7–Dibromo–9,9'–sp, 2,7–Dibromo–9,9–spriobifluorene, 2,7–Dibromo–9,9'–Spirobifluorene, 2,7–Dibromo–9,9''–Spiro–bifluoroene, 2,7–DibroMo–9,9'–spirobi(9H–fluorene), 9,9′–Spirobi(9H–fluorene) and 2,7–dibromo just to name a few. The molecular weight of 2,7–dibromo–9,9'–spirofluorene is 474.1867 g/mol and density is 1.74 g/cm3. It looks off–white in colour and appears in power state. Manufactured at the house of Ruiyuan Group Limited, 2,7–dibromo–9,9'–spirofluorene is exported worldwide and has earned quite popularity in its home nation China and other parts of the globe.

Manufactured by the same China–based company Ruiyuan Group Limited, 9H–Fluorene–9–methanol is another compound under fluorene derivatives or fluorene series that is exported internationally. This compound is also known by other names (i.e., synonyms – 9–Fluorenemethanol, 9–Fluorenylmethanol, Fmoc–OH, 9H–fluoren–9–ylmethanol, Fm–OH, (Fluoren–9–yl)methanol, 9–(Hydroxymethyl) fluorine, 9–Fluorenylmethyl alcohol and 9H–Fluorene–9–methanol). The molecular formula of 9H–Fluorene–9–methanol is C14H12O and molecular weight is 196.2445 g/mol. Its density is 1.175 g/cm3 According to the scientists and researches, the physical and chemical properties of 9H–Fluorene–9–methanol state that its surface appearance is white to pale yellow solid and it is insoluble in water. The melting point of this compound varies between 104–107 degree Celsius. It boils at 364 degree Celsius at 760 mmHg, its refractive index (RI) is declared 1.638 and its partition coefficient is 2.97. It is suggested 9H–Fluorene–9–methanol to be stored at a temperature of 0–5 degree Celsius or in a cool, dry, well–ventilated area away from incompatible substances. One is ought to keep container of this chemical compound closed when not in use. It is stable under normal temperatures and pressures. However, it is a very hazardous product. One using it should wear appropriate protective gloves, protective eyeglasses or chemical safety goggles in order to avoid contact with skin and eyes.

Other than 2,7–dibromo–9,9'–spirofluorene and 9H–Fluorene–9–methanol, Ruiyuan Group Limited also manufactures numerous products and has earned huge acclamation from its clients from various countries. The Group, on the other hand, also concentrates on the concept of understanding its customers’ requirements from time to time, and accordingly caters to its target audience always their demands on the priority list. That’s the specialty and USP of Ruiyuan Group Limited as compared to its competitors.

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