Chemical Abstracts Service stereochemistry

The Morgan algorithm 5> is a device used by the Chemical Abstracts Service for assigning indices to the nodes of constitutional formulas whose H-atoms have been omitted, i. e. their reduced graphs. If the indices of all atoms are needed, e.g. for the representation of stereochemistry, an additional procedure is needed for establishing those for the H-atoms. Constitutional symmetry is not indicated directly by Morgan indices. [Pg.10]

Carbohydrate nomenclature impacts on stereochemistry, and on the nomenclature of compounds other than mainstream carbohydrates (e.g., hydroxylactones), often named as modihed carbohydrates in Chemical Abstracts Service (CAS) and elsewhere. For further stereochemical information on carbohydrates, see Chapter 7. [Pg.81]

Chemical Abstracts Service (2002) Chemical abstracts 2002 index guide, appendix IV, naming and indexing of chemical substances for chemical abstracts, E. Stereochemistry and stereoparents (paragraphs 202-212). Chemical Abstracts Service, Columbus, Ohio. [Pg.100]

The chapters on stereochemistry are ones by Nancy Porter, concerning a chiral structure database for saccharides (the subject of her research before she joined Maxwell Online) and two by various authors from Chemical Abstracts Service, representing presentations at Noordwijkerhout by Paul Blower, about the addition... [Pg.503]

Artificial Intelligence in Chemistry Chemical Abstracts Service Information System Graph Theory in Chemistry Nomenclature Automatic Generation and Conversion Quantitative Structure-Activity Relationships in Drug Design Reaction Databases Ring Perception Stereochemistry ... [Pg.182]

Chemical Abstracts Service Information System Combinatorial Chemistry Computer Graphics and Molecular Modeling Factual Information Databases Online Databases in Chemistry Reaction Classification Stereochemistry Representation and Manipulation Structural Similarity Measures for Database Searching Structure and Substructure Searching Structure Representation Synthesis Design. [Pg.2419]

A Chemical Abstracts Service registry ntrmber accompanies most of the polymers rramed in the table. Although some polymers have more than one registry number owing to particular stereochemistries, different terminal groups, etc., otrly the most common number appears in the table for each polymer. [Pg.2126]