Chemical groups on the SIN List
The SIN List contains about 1000 CAS numbers, quite an overwhelming figure. But many chemicals are similar in terms of chemical structure, toxicological properties and technical functions. more or less.
For many reasons it can be wise to tackle chemicals on a group level, rather than substance by substance.
The substances on the SIN List have been divided into 15 substance groups, some of which have been further divided into subgroups.
Alkylphenols
Contains phenols with lipophilic alkyl groups of at least four carbons attached to the aromatic ring with a carbon-carbon bond in the orto and para position. The aromatic ring can contain other functional groups as well. The phenol oxygen is unsubstituted or ethoxylated.
Aromatics
Polyaromatics
Contains compounds with two or more fused aromatic rings. The rings can be substituted with, halogen, nitro and amino groups.
Other aromatics
Contains simple aromatic compounds.
Bisphenols
Contains compounds in which two phenols are bridged with one carbon or heteroatom. The bridge-atom can be oxidized or substituted with hydrogen, alkyls, phenyl and esters. The phenol oxygens are unsubstituted.
Carbon Nanotubes
Carbon nanotubes (CNTs) are cylindrical tubes of hexagonal arrangement of carbon atoms linked by a double bond. CNTs have a very high aspect ratio and their diameter can be much lower than 100 nm whereas their lengths can reach several hundred micrometers. There are different types of CNTs depending on the number of side-walls and their atomic structure in the side-walls. The simplest CNTs are single-walled (SWCNT), double-walled (DWCNT) and multi-walled (MWCNT).
Fluorinated compounds
Defined as substances that contain at least one aliphatic carbon atom that is both, saturated and fully fluorinated, i.e. any chemical with at least one perfluorinated methyl group (-CF3) or at least one perfluorinated methylene group (-CF2-), including fluoropolymers (such as PTFE) and side chain polymers.
Glycol ethers
Contains ethers and esters of mono and poly 1,2-ethanediols and 2-hydroxyacetic acid. The carbon backbone can be further substituted with alkyl groups.
Halogenated compounds
Polyhalogenated alkanes
Contains brominated and/or chlorinated alkanes. The number of halogens is three or more, distributed over two or more carbons. At least two carbons are halogenated. There are at least one halogen/five carbons.
Polyhalogenated alkenes
Contains brominated and/or chlorinated alkenes. The double bond is substituted with two or more halogens.
Polyhalogenated aromatics
Contains brominated and/or chlorinated aromatic compounds with one benzene ring with at least three halogens or two or more benzene rings with at least two halogens on each ring.
Heavy metals
Antimony compounds
Contains salts and complexes of oxidized antimony.
Arsenic compounds
Contains salts and complexes of oxidized arsenic.
Beryllium compounds
Contains oxidized and metallic beryllium.
Boron compounds
Contains salts and complexes of oxidized boron.
Cadmium compounds
Contains salts and complexes of oxidized cadmium as well as metallic cadmium.
Chromium compounds
Contains salts and complexes of chromium(VI).
Cobalt compounds
Contains salts and complexes of oxidized cobalt.
Copper compounds
Contains salts and complexes of oxidized copper.
Lead compounds
Contains salts and complexes of oxidized lead, organolead compounds and metallic lead.
Mercury compounds
Contains metallic mercury.
Nickel compounds
Contains salts and complexes of oxidized nickel.
Organotin compounds
Contains organotin compunds.
Highly reactive compounds
Contains compounds with the following reactive electrophilic groups; anhydrides, carbamoyl chlorides, carbonyl chlorides, epoxides, aziridines, alkyl sulphates, sulphamoyl chlorides, primary alkylbromides, allylic and benzylic halogens, cationic triarylmethanes, α,β-Unsaturated carbonyl compounds, mustard-type compounds, dialkyl sulphates, sulphamoyl chlorides, sultones, diazo alkyls, chloromethyl ethers and 1,2-dihalo alkyls.
Mineral fibres
Contains naturally occurring fibrous zeolites, asbestos-type minerals and synthetic mineral wools.
Nitrogen compounds
Amines
Contains hazardous primary, secondary and tertiary amines.
Aminocarbonyl compounds
Contains amides, carbamates and similar aminocarbonyl compounds.
Aromatic amines
Contains compounds with benzene rings substituted with amino-, alkylamino-, amide-, phenylhydrazine- or phenylazo- groups.
Azo compounds
Contains both aromatic and non-aromatic azo compounds.
Hydrazines
Contains hydrazine and alkylated hydrazines.
Nitro compounds
Contains nitroaromatic and secondary nitroalkyl compounds.
Nitrosamines
Contains alkylated and acetylated nitrosamines.
Thioaminocarbonyl compounds
Contains thioamides, thiocarbamates, and similar thioaminocarbonyl compounds.
Triazines
Parabens
Contain esters of parahydroxybenzoic acid. The alcohol part of the ester consists of a carbon chain with at least two carbons.
Petroleum
Contains aliphatic hydrocarbons and aromatic compounds often in complex mixtures.
Phthalates
Contains esters of phthalic acid.
Other compounds
Heterocyclic compounds
Contains heterocyclic compounds.
Organophosphors
Contains organophosphorus compounds and their derivatives.
Organosilicones
Contains organosilicones.
Others
All other substances not fitting in any other group.