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According and IUPAC
According to the definition by IUPAC, the former two are alkanes, whereas the third group is called cycloalkanes.
According to IUPAC, chemical elements are not proper nouns in English ; consequently, the full name of an element is not routinely capitalized in English, even if derived from a proper noun, as in californium and einsteinium.
According to the rules of IUPAC nomenclature, ketones are named by changing the suffix-ane of the parent alkane to-one.
According to the IUPAC definition, a metallocene contains a transition metal and two cyclopentadienyl ligands coordinated in a sandwich structure, i. e., the two cyclopentadienyl anions are co-planar with equal bond lengths and strengths.
According to an IUPAC definition, solubility is the analytical composition of a saturated solution expressed as a proportion of a designated solute in a designated solvent.
According to IUPAC recommendations, the discoverer ( s ) of a new element has the right to suggest a name.
According to current guidelines from IUPAC, the ultimate name for all new elements should end in "- ium ", which means the name for ununoctium may end in "- ium ", not "- on ", even if ununoctium turns out to be a noble gas, which traditionally have names ending in "- on " ( with the exception of helium, which was not known to be a noble gas when it was discovered ).
According to current guidelines from IUPAC, the ultimate name for all new elements should end in "- ium ", which means the name for ununseptium will end in "- ium ", not "- ine ", even if ununseptium turns out to be a halogen, which traditionally have names ending in "- ine ".
According to IUPAC recommendations, the discoverer ( s ) of a new element has the right to suggest a name.
According to the standard IUPAC definition, the term macromolecule as used in polymer science refers only to a single molecule.
According to the IUPAC definition, it is the partial molar Gibbs energy of the substance at the specified electric potential, where the substance is in a specified phase.
According to IUPAC recommendation: A thermosetting polymer is a prepolymer in a soft solid or viscous state that changes irreversibly into an infusible, insoluble polymer network by curing.
According to IUPAC rules all hydrogen atoms should preferably be drawn explicitly.
According to IUPAC recommendations, macromolecules refer to the individual molecular chains and are the domain of chemistry.
According to IUPAC nomenclature, " isobutyl ", " sec-butyl ", and " tert-butyl " are all retained names.
According to 1993 IUPAC guidelines:
According to the IUPAC definition, flocculation is " a process of contact and adhesion whereby the particles of a dispersion form larger-size clusters.
According to IUPAC notation, microporous materials have pore diameters of less than 2 nm and macroporous materials have pore diameters of greater than 50 nm ; the mesoporous category thus lies in the middle.
According to the IUPAC, a mesoporous material can be disordered or ordered in a mesostructure.
According to the IUPAC definition, mixed potential is the potential of an electrode ( against a suitable

According and nomenclature
According to current nomenclature,
According to standardized nomenclature of socialist historiography, the three tribes were in the patriarchal-slavery stage of the late slavery clan system.
According to the IUGS classification nomenclature ( International Union of Geological Sciences, Streckeisen, 1978 ), nepheline syenite has 10 %< F /( F + A + P )< 60 % and P /( A + P )< 10 % ( F-feldspathoids ; A-alkali feldspar ; P-plagioclase.
According to the Chapel Hill Consensus Conference ( CHCC ) on the nomenclature of systemic vasculitis ( 1992 ), establishing the diagnosis of Wegener's granulomatosis demands:
According to Saussure, language is not a nomenclature.
According to the rules of the International Code of Zoological Nomenclature, Cancer pagurus was first described by Carl Linnaeus in 1758, in the tenth edition of his Systema Naturae, which marks the starting point of zoological nomenclature.
According to the rules of zoological nomenclature a nomen nudum is unavailable ; the glossary of the International Code of Zoological Nomenclature gives this definition:
According to the rules of botanical nomenclature a nomen nudum is not validly published.

IUPAC and nomenclature
In the modern IUPAC nomenclature, the alkali metals comprise the group 1 elements, excluding hydrogen ( H ), which is nominally a group 1 element but not normally considered to be an alkali metal as it rarely exhibits behaviour comparable to that of the alkali metals.
The actinide or actinoid ( IUPAC nomenclature ) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
Alkynes are traditionally known as acetylenes, although the name acetylene also refers specifically to C < sub > 2 </ sub > H < sub > 2 </ sub >, known formally as ethyne using IUPAC nomenclature.
An example is methylacetylene ( propyne using IUPAC nomenclature ).
However, today the IUPAC system of chemical nomenclature allows chemists to specify by name specific compounds amongst the vast variety of possible chemicals.
The standard nomenclature of chemical substances is set by the International Union of Pure and Applied Chemistry ( IUPAC ).
In IUPAC nomenclature, organic compounds that have a – C ≡ N functional group are called nitriles.
The Cahn – Ingold – Prelog rules are distinctly different from those of other naming conventions, such as general IUPAC nomenclature, since they are designed for the specific task of naming stereoisomers rather than the general classification and description of compounds.
In the IUPAC nomenclature system, ethers are named using the general formula " alkoxyalkane ", for example CH < sub > 3 </ sub >- CH < sub > 2 </ sub >- O-CH < sub > 3 </ sub > is methoxyethane.
Esters derived from the simplest carboxylic acids are commonly named according to the more traditional, so-called " trivial names " e. g. as formate, acetate, propionate, and butyrate, as opposed to the IUPAC nomenclature methanoate, ethanoate, propanoate and butanoate.
The classifications for hydrocarbons defined by IUPAC nomenclature of organic chemistry are as follows:
The IUPAC recommends the Hantzsch-Widman nomenclature for naming heterocyclic compounds.
IUPAC's Inter-divisional Committee on Nomenclature and Symbols ( IUPAC nomenclature ) is the recognized world authority in developing standards for the naming of the chemical elements and compounds.
IUPAC is best known for its works standardizing nomenclature in chemistry and other fields of science, but IUPAC has publications in many fields including chemistry, biology and physics.
The ideas that were formulated in that conference evolved into the official IUPAC nomenclature of organic chemistry.
Since this time, IUPAC has been the official organization held with the responsibility of updating and maintaining official organic nomenclature.
Since World War II, IUPAC has been focused on standardizing nomenclature and methods in science without interruption.
Although used infrequently, " oxo " is the IUPAC nomenclature for a ketone functional group.
* IUPAC nomenclature of lipids
The lanthanide or lanthanoid ( IUPAC nomenclature ) series comprises the fifteen metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium.
Methyl is the IUPAC nomenclature of organic chemistry term for an alkane ( or alkyl ) molecule, using the prefix " meth -" to indicate the presence of a single carbon.
The IUPAC Blue Book on organic nomenclature specifically mentions urea and oxalic acid.
The IUPAC nomenclature of organic compounds slightly differs from the CAS nomenclature.

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