Phosphate ion (PO₄³⁻)

A compound ion formed when a phosphoric acid molecule releases a proton.

Glycylglycine (C₄H₈N₂O₃)

The simplest peptide, formed from two glycine molecules by a peptide bond.

Glycerol (propane-1,2,3-triol) (C₃H₈O₃)

A triol that is often used as an ingredient of creams and ointments.

Ethanol (ethyl alcohol) (C₂H₅OH)

The best known alcohol, important in the food industry.

Boron trifluoride (BF₃)

Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.

Oleic acid (cis-octadec-9-enoic acid) (C₁₇H₃₃COOH)

An unsaturated monocarboxylic acid. The molecule contains double bond in cis orientation.

Phenol (C₆H₅OH)

The simplest of the aromatic hydroxy compounds.

Maltose (malt sugar) (C₁₂H₂₂O₁₁)

A disaccharide formed by the joining of two alpha-D-glucose molecules.

Naphtalene (C₁₀H₈)

The simplest polycyclic aromatic hydrocarbon.

Beryllium dichloride (BeCl₂)

Used in the production of beryllium and as a catalyst.

Isoprene (2-methyl-1,3-butadiene) (C₅H₈)

Synthetic rubber is produced by the polymerisation of isoprene.

Nitrogen monoxide (Nitric oxide) (NO)

A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.

Methanol (methyl alcohol) (CH₃OH)

The simplest saturated alcohol. A highly toxic compound, easily confusable with ethanol.

Methane (CH₄)

The first member in the homologous series of alkanes.

Hydrogen-fluoride (HF)

One of the hydrogen halides, a highly aggressive substance - it even attacks glass.

Iodine (I₂)

A solid, grey substance which sublimates when heated. Its solution in alcohol is called tincture of iodine, it is a disinfectant.

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