| HAH | Halogenated aromatic hydrocarbons |
|---|---|
| nitro-PAHs | Nitro-polycyclic aromatic hydrocarbons |
| hydrocarbons, acyclic | Organic compounds composed exclusively of carbon and hydrogen where no carbon atoms join to form a ring structure. (12 Dec 1998) |
|---|
| acyclic | Not cyclic; denoting especially an acyclic compound. (05 Mar 2000) |
|---|---|
| acyclic acid | <chemistry> Carboxylic acids that have open-chain molecular structures as opposed to ring-shaped structures. (25 Jun 1999) |
| acyclic compound | An organic compound in which the chain does not form a ring. Synonym: aliphatic compound, open chain compound. (05 Mar 2000) |
| acyclic monoterpene primary alcohol - NADP oxidoreductase | <enzyme> From catmint nepeta racemosa; involved in the biosynthesis of iridoid monoterpenes; oxidises geraniol, nerol, and their 10-hydroxy derivatives in the presence of nadp(+). Registry number: EC 1.1.1.- Synonym: monoterpene primary alcohol - nadp oxidoreductase, ampano (26 Jun 1999) |
| polycyclic hydrocarbons | Hydrocarbons consisting of two or more fused ring structures. (12 Dec 1998) |
| polycyclic hydrocarbons, aromatic | <chemical> A major group of unsaturated cyclic hydrocarbons containing two or more rings. The vast number of compounds of this important group, derived chiefly from petroleum and coal tar, are rather highly reactive and chemically versatile. The name is due to the strong and not unpleasant odour characteristic of most substances of this nature. Pharmacological action: carcinogens. (12 Dec 1998) |
| hydrocarbons, alicyclic | Organic compounds composed exclusively of carbon and hydrogen. Three or more carbon atoms are arranged in a cyclic structure and they possess aliphatic properties. (12 Dec 1998) |
| hydrocarbons, aromatic | Organic compounds composed exclusively of carbon and hydrogen. They are unsaturated hexagonal ring structures with a closed conjugated system of double bonds that gives them the characteristic chemical properties of the parent aromatic hydrocarbon, benzene. (12 Dec 1998) |
| hydrocarbons, cyclic | Organic compounds composed exclusively of carbon and hydrogen forming a closed ring that may be either alicyclic or aromatic. (12 Dec 1998) |
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