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  2. Wikipedia : WikiProject Chemicals/Chembox validation

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    For example, something simple like alanine will have one CAS# for the D form, another for L, another for "unspecified" and a fourth one for racemic. There would be another four CAS#s for the hydrochloride, four for the (1:1) sulfate, four for the (2:1)sulfate, etc. It is very important that we match the correct form CAS# to our Chemboxes!

  3. Chemical Abstracts Service - Wikipedia

    en.wikipedia.org/wiki/Chemical_Abstracts_Service

    According to CAS, his visionary view of CAS' potential "led to expansion, modernization, and the forging of international alliances with other information organizations." [15] CAS was an early leader in the use of computer technology to organize and disseminate information. [16] The CAS Chemical Registry System was introduced in 1965.

  4. Wikipedia talk : WikiProject Chemistry/CAS validation

    en.wikipedia.org/.../CAS_validation

    CAS, a division of the American Chemical Society, is pleased to announce that it will contribute to the Wikipedia project. CAS will work with Wikipedia to help provide accurate CAS Registry Numbers ® for current substances listed in Wikiprojects-Chemicals section of the Wikipedia Chemistry Portal that are of widespread general public interest.

  5. Wikipedia : WikiProject Molecular Biology/PyMol tutorial

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    The WikiProject: Molecular and Cellular Biology supports the use of PyMOL, an open-source molecular visualization program, for the creation of images of biomolecules such as proteins, DNA, and related complexes. This page provides introduces the software and demonstrates how to create high-quality images of proteins.

  6. 1,2,3,4-Butanetetracarboxylic acid - Wikipedia

    en.wikipedia.org/wiki/1,2,3,4-Butanetetra...

    1,2,3,4-Butanetetracarboxylic acid is an organic compound with the formula HO 2 CCH 2 CH(CO 2 H)CH(CO 2 H)CH 2 CO 2 H. It is one of the simplest stable tetracarboxylic acids. The compound exists as two diastereomers, meso and the (R,R)/(S,S) pair. All are white solids. The compound is produced by oxidation of tetrahydrophthalic anhydride. [1]

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    For every 3 non-theme words you find, you earn a hint. Hints show the letters of a theme word. If there is already an active hint on the board, a hint will show that word’s letter order.

  8. Molybdenum(II) acetate - Wikipedia

    en.wikipedia.org/wiki/Molybdenum(II)_acetate

    Molybdenum(II) acetate is a coordination compound with the formula Mo 2 (O 2 CCH 3) 4. It is a yellow, diamagnetic , air-stable solid that is slightly soluble in organic solvents. Molybdenum(II) acetate is an iconic example of a compound with a metal-metal quadruple bond .

  9. 4-Phenyl-1,2,4-triazole-3,5-dione - Wikipedia

    en.wikipedia.org/wiki/4-Phenyl-1,2,4-triazole-3...

    4-Phenyl-1,2,4-triazoline-3,5-dione (PTAD) is an azodicarbonyl compound. PTAD is one of the strongest dienophiles and reacts rapidly with dienes in Diels-Alder reactions . [ 1 ] The most prominent use of PTAD was the first synthesis of prismane in 1973.