Nonoxynol
Nonoxynol-9 is the most commonly encountered spermatocide in the United States. As with other spermatocides, it destroys spermatozoa; it kills sperm. The nonoxynols, technically speaking, are nonionic surfactant [surface active] mixtures that vary in the number of repeating ethoxy groups. They are much used as detergents, emulsifiers, wetting and defoaming agents, etc. Nonoxynol-9 has 9 repeating ethoxy groups. It is the active component of most vaginal foams and creams.

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non·ox·y·nol (non-okґsĭ-nol) nonylphenoxypolyethoxyethanol. Any of a group of compounds of the general composition C15H24O(C2H4 O)n, which are assigned numbers according to the approximate value of n: nonoxynol 4 is C15H24O(C2H4O)4, or C23H40O5; nonoxynol 9 is C33H60O10; nonoxynol 15 is C45H84O16; nonoxynol 30 is C75H144O31. Nonoxynol 4, 15, and 30 are nonionic surfactants, and nonoxynol 9 is used as a spermicide. Nonoxynol 10, in which n varies from 6 to 16, is used as a pharmaceutical surfactant.

Medical dictionary. 2011.

Look at other dictionaries:

  • Nonoxynol-9 — IUPAC name 2 [2 [2 [2 [2 [2 [2 [2 [2 (4 Nonylphenoxy)ethoxy]ethoxy]ethoxy]ethoxy] ethoxy]ethoxy]ethoxy]ethoxy]ethanol …   Wikipedia

  • nonoxynol-9 — [nän΄äk′sə nôl nīn′] n. a chemical substance used as the spermicide in certain contraceptive preparations: also written nonoxynol 9 …   English World dictionary

  • Nonoxynol-40 — Strukturformel Allgemeines Name Nonoxynol 40 Andere Namen Polyethylenglycol(40) nonylphenolether PE …   Deutsch Wikipedia

  • Nonoxynol-9 — Strukturformel Allgemeines Freiname Nonoxinol 9 Andere Namen …   Deutsch Wikipedia

  • Nonoxynol 9 — Strukturformel Allgemeines Freiname Nonoxinol 9 Andere Namen …   Deutsch Wikipedia

  • nonoxynol-9 — noun Etymology: nonyl (the radical C9H19) + oxy + phenol + 9 (from the fact that the compounds it contains have an average of nine ethylene oxide groups per molecule) Date: 1980 a spermicide used in contraceptive products …   New Collegiate Dictionary

  • nonoxynol-9 — /no nok seuh nawl nuyn , nol /, n. Pharm. the active ingredient of spermicides. [by rearrangement of parts of its chemical name] * * * …   Universalium

  • nonoxynol 9 — A group of compounds that are surface acting agents, used in spermicidal preparations such as contraceptive foam and diaphragm jelly …   Medical dictionary

  • nonoxynol-9 — no·nox·y·nol 9 nä näk sə .nōl nīn, .nȯl n a spermicide used in contraceptive products that consists of a mixture of compounds having the general formula C15H23(OCH2CH2)nOH with an average of nine ethylene oxide groups per molecule …   Medical dictionary

  • nonoxynol-9 — no·nox·y·nol 9 …   English syllables

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