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  2. IUPAC numerical multiplier - Wikipedia

    en.wikipedia.org/wiki/IUPAC_numerical_multiplier

    4 tetra- 33 tritriaconta- 5 penta- 34 tetratriaconta- 6 hexa- 40 ... There are two more types of numerical prefixes in IUPAC organic chemistry nomenclature. [1]

  3. IUPAC nomenclature of organic chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    The rest are named with a Greek numeric prefix, with the exceptions of nonane which has a Latin prefix, and undecane which has mixed-language prefixes. Cyclic alkanes are simply prefixed with "cyclo-": for example, C 4 H 8 is cyclobutane (not to be confused with butene) and C 6 H 12 is cyclohexane (not to be confused with hexene).

  4. Chemical nomenclature - Wikipedia

    en.wikipedia.org/wiki/Chemical_nomenclature

    Thus, NCl 3 is termed nitrogen trichloride, BF 3 is termed boron trifluoride, and P 2 O 5 is termed diphosphorus pentoxide (although the a of the prefix penta-should actually not be omitted before a vowel: the IUPAC Red Book 2005 page 69 states, "The final vowels of multiplicative prefixes should not be elided (although "monoxide", rather than ...

  5. Numeral prefix - Wikipedia

    en.wikipedia.org/wiki/Numeral_prefix

    In certain classes of systematic names, there are a few other exceptions to the rule of using Greek-derived numerical prefixes. The IUPAC nomenclature of organic chemistry, for example, uses the numerical prefixes derived from Greek, except for the prefix for 9 (as mentioned) and the prefixes from 1 to 4 (meth-, eth-, prop-, and but-), which ...

  6. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    The prefixes for naming carbon chains containing one to four carbons. For chains containing five or more carbons, the inorganic prefixes (e.g. pent = 5, hept = 7) are ...

  7. IUPAC nomenclature of inorganic chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    They are named as the ionic compound followed by a numerical prefix and -hydrate. The numerical prefixes used are listed below (see IUPAC numerical multiplier): mono-di-tri-tetra-penta-hexa-hepta-octa-nona-deca-For example, CuSO 4 ·5H 2 O is "copper(II) sulfate pentahydrate".

  8. Locant - Wikipedia

    en.wikipedia.org/wiki/Locant

    The locant is the number of the carbon atom to which the oxygen atom is bonded. If the oxygen is bonded to the middle carbon, the locant is 3. If the oxygen is bonded to an atom on either side (adjacent to an end carbon), the locant is 2 or 4; given the choice here, where the carbons are exactly equivalent, the lower number is always chosen. So ...

  9. IUPAC nomenclature of chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    IUPAC nomenclature is used for the naming of chemical compounds, based on their chemical composition and their structure. [1] For example, one can deduce that 1-chloropropane has a Chlorine atom on the first carbon in the 3-carbon propane chain.