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The systematic IUPAC name is not always the preferred IUPAC name, for example, lactic acid is a common, and also the preferred, name for what systematic rules call 2-hydroxypropanoic acid. This list is ordered by the number of carbon atoms in a carboxylic acid.
Number of C atoms Number of isomers [3] [4] Number of isomers including stereoisomers [3] [5] Molecular Formula Name of straight chain Synonyms 1 1 1 CH 4: methane: methyl hydride; natural gas 2 1 1 C 2 H 6: ethane: dimethyl; ethyl hydride; methyl methane 3 1 1 C 3 H 8: propane: dimethyl methane; propyl hydride 4 2 2 C 4 H 10: n-butane: butyl ...
Common Name Systematic Name Structural Formula Lipid Numbers Propionic acid: Propanoic acid CH 3 CH 2 COOH C3:0 Butyric acid: Butanoic acid CH 3 (CH 2) 2 COOH C4:0 Valeric acid: Pentanoic acid CH 3 (CH 2) 3 COOH C5:0 Caproic acid: Hexanoic acid CH 3 (CH 2) 4 COOH C6:0 Enanthic acid: Heptanoic acid CH 3 (CH 2) 5 COOH C7:0 Caprylic acid: Octanoic ...
In organic chemistry, a dicarboxylic acid is an organic compound containing two carboxyl groups (−COOH). The general molecular formula for dicarboxylic acids can be written as HO 2 C−R−CO 2 H, where R can be aliphatic or aromatic. In general, dicarboxylic acids show similar chemical behavior and reactivity to monocarboxylic acids.
Crotonic acid has 4 carbons, is included in croton oil, and is a trans-2-mono-unsaturated fatty acid. C 3 H 5 CO 2 H, IUPAC organization name (E)-but-2-enoic acid, trans-but-2-enoic acid, numerical representation 4:1, n-1, molecular weight 86.09, melting point 72–74 °C, boiling point 180–181 °C, specific gravity 1.027. CAS registry number ...
Squaric acid, also called quadratic acid because its four carbon atoms approximately form a square, is a diprotic organic acid with the chemical formula C 4 O 2 (OH) 2. [4]The conjugate base of squaric acid is the hydrogensquarate anion HC 4 O − 4; and the conjugate base of the hydrogensquarate anion is the divalent squarate anion C 4 O 2− 4.
For chemical elements without isolated molecules, such as carbon and metals, the molar mass is computed dividing by the number of moles of atoms instead. Thus, for example, the molar mass of iron is about 55.845 g/mol. Since 1971, SI defined the "amount of substance" as a separate dimension of measurement.
The fluorinated version of malonic acid is difluoromalonic acid. Chemical structure of the malonate dianion. Malonic acid is diprotic; that is, it can donate two protons per molecule. Its first is 2.8 and the second is 5.7. [2] Thus the malonate ion can be H OOCCH 2 COO − or C H 2 (COO) 2− 2.