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  2. Bial's test - Wikipedia

    en.wikipedia.org/wiki/Bial's_test

    Bial's reagent consists of 0.4 g orcinol, 200 ml of concentrated hydrochloric acid and 0.5 ml of a 10% solution of ferric chloride. [2] Bial's test is used to distinguish pentoses from hexoses; this distinction is based on the color that develops in the presence of orcinol and iron (III) chloride. Furfural from pentoses gives a blue or green color.

  3. Orcinol - Wikipedia

    en.wikipedia.org/wiki/Orcinol

    It is used in the production of the dye orcein and as a reagent in some chemical tests for pentoses, such as Bial's Test. It may be synthesized from toluene; more interesting is its production when acetone dicarboxylic ester is condensed with the aid of sodium. It crystallizes in colorless prisms with one molecule of water, which redden on ...

  4. Pyridinium p-toluenesulfonate - Wikipedia

    en.wikipedia.org/wiki/Pyridinium_p-toluenesulfonate

    In organic synthesis, PPTS is used as a weakly acidic catalyst, providing an organic soluble source of pyridinium (C 5 H 5 NH +) ions.For example, PPTS is used to deprotect silyl ethers or tetrahydropyranyl ethers when a substrate is unstable to stronger acid catalysts.

  5. Pivaloyl chloride - Wikipedia

    en.wikipedia.org/wiki/Pivaloyl_chloride

    Pivaloyl chloride is a chemical compound used in organic synthesis, particularly for introducing the pivaloyl group into molecules.

  6. tert-Butyldimethylsilyl chloride - Wikipedia

    en.wikipedia.org/wiki/Tert-Butyldimethylsilyl...

    tert-Butyldimethylsilyl chloride is an organosilicon compound with the formula (Me 3 C)Me 2 SiCl (Me = CH 3).It is commonly abbreviated as TBSCl or TBDMSCl. It is a chlorosilane containing two methyl groups and a tert-butyl group.

  7. Bromotrifluoromethane - Wikipedia

    en.wikipedia.org/wiki/Bromotrifluoromethane

    MSDS sheet at airliquide.com [permanent dead link ‍] FAA paper on testing cylinders used to store Halon 1301 without breaking their seals ; MSDS for bromotrifluoromethane ; Basic Facts about Halon Archived 2012-01-04 at the Wayback Machine

  8. Walking This Much Could Add 11 Years To Your Life - AOL

    www.aol.com/lifestyle/walking-much-could-add-11...

    A recent study found that adding 111 minutes of daily walking could help you live 11 years longer. Here's experts want you to know about walking's benefits.

  9. Diisopropyl azodicarboxylate - Wikipedia

    en.wikipedia.org/wiki/Diisopropyl_azodicarboxylate

    Diisopropyl azodicarboxylate (DIAD) is the diisopropyl ester of azodicarboxylic acid. It is used as a reagent in the production of many organic compounds.It is often used with triphenylphosphine in the Mitsunobu reaction, [2] wherein it serves as a hydride acceptor.