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cyclo-

  1. A prefix used in names to designate a ring structure, usually italicized in inorganic, but not in organic nomenclature. Examples:
    C01495-1
    C01495-2
    Source:
    See also:
    Blue Book (Guide), p. 30
  2. The prefix for an elementary reaction or some part thereof indicating that the bonds undergoing primitive changes form part of a ring in the transition state of a pericyclic process.
    Source:
    PAC, 1989, 61, 23 (System for symbolic representation of reaction mechanisms (Recommendations 1988)) on page 34
InChI=1/C19H32/c1-18-11-5-7-16(18)15-9-8-14-6-3-4-12-19(14,2)17(15)10-13-18/h14-17H,3-13H2,1-2H3/t14-,15-,16-,17+,18-,19-/m1/s1
QZLYKIGBANMMBK-WVXCVLBUBE
InChI=1/C19H30/c1-17-9-4-6-15(17)16-8-7-14-5-2-3-10-18(14)13-19(16,18)12-11-17/h14-16H,2-13H2,1H3/t14-,15-,16-,17-,18+,19-/m1/s1
DRFWRYABLIIAMP-VEAXJEOVBR
InChI=1/C6H14/c1-3-5-6-4-2/h3-6H2,1-2H3
VLKZOEOYAKHREP-UHFFFAOYAD
InChI=1/C6H12/c1-2-4-6-5-3-1/h1-6H2
XDTMQSROBMDMFD-UHFFFAOYAZ
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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.C01495.
Original PDF version: http://www.iupac.org/goldbook/C01495.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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