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  2. List of cheminformatics toolkits - Wikipedia

    en.wikipedia.org/wiki/List_of_Cheminformatics...

    Read and save structures in various chemistry file formats. Determine if one structure is a substructure of another (substructure matching). Determine if two structures are equal (exact matching). Identification of substructures common to structures in a set (maximal common substructure, MCS). Disassemble molecules, splitting into fragments.

  3. CPK coloring - Wikipedia

    en.wikipedia.org/wiki/CPK_coloring

    Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.

  4. List of computer-assisted organic synthesis software - Wikipedia

    en.wikipedia.org/wiki/List_of_computer-assisted...

    Computer-assisted organic synthesis software is a type of application software used in organic chemistry in tandem with computational chemistry to help facilitate the tasks of designing, predicting, and producing chemical reactions. CAOS aims to identify a series of chemical reactions which, from a starting compound, can produce a desired molecule.

  5. Molecular model - Wikipedia

    en.wikipedia.org/wiki/Molecular_model

    Beever's ball and stick model of ruby (Cr-doped corundum) made with acrylic balls and stainless steel rods. However, most molecules require holes at other angles and specialist companies manufacture kits and bespoke models. Besides tetrahedral, trigonal and octahedral holes, there were all-purpose balls with 24 holes. These models allowed ...

  6. Porter Chemical Company - Wikipedia

    en.wikipedia.org/wiki/Porter_Chemical_Company

    Porter Chemical Company was an American toy manufacturer that developed and produced chemistry sets aimed as educational toys for aspiring junior scientists. The company's Chemcraft kits were first sold at major retail by Woodward & Lothrop , and appeared soon after at other retailers in the country.

  7. National Standard Examination in Chemistry - Wikipedia

    en.wikipedia.org/wiki/National_Standard...

    The National Standard Examination in Chemistry or NSEC is an examination in chemistry for higher secondary school students in India, usually conducted in the end of November. [1] The examination is organized by the Indian Association of Chemistry Teachers. Over 30,000 students, mainly from Standard 12, sit for this examination.

  8. California Water Commision unveils 5-year plan to boost ... - AOL

    www.aol.com/california-water-commision-unveils-5...

    Seven of those members must have general expertise in the control, storage and best use of water. The other two are chosen for their knowledge of the environment. The Commission releases a ...

  9. List of reagents - Wikipedia

    en.wikipedia.org/wiki/List_of_reagents

    is an alkaline solution of potassium permanganate; used in organic chemistry as a qualitative test for the presence of unsaturation, such as double bonds; N-Bromosuccinimide: used in radical substitution and electrophilic addition reactions in organic chemistry. Also acts as a mild oxidizer to oxidize benzylic or allylic alcohols.

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