2,2 dimethylpropane (C₅H₁₂)

Colourless, odourless gas used as a standard in NMR spectroscopy.

Clothing (Western Europe, 13th century)

Clothing reflects the lifestyle and culture of the region's inhabitants.

Hydrogen bromide (HBr)

One of the hydrogen halides, it is used for the production of alkyl bromides.

Clothing (Western Europe, 14th century)

Clothing reflects the lifestyle and culture of the region's inhabitants.

Clothing (Western Europe, 15th century)

Clothing reflects the lifestyle and culture of the region's inhabitants.

Acetaldehyde (ethanal) (CH₃CHO)

An aldehyde which is an important raw material and intermediate product in industry.

Hydrogen-iodide (HI)

A colourless, heavier-than-air gas with a pungent odour.

Pyridine (C₅H₅N)

A basic heterocyclic organic compound; a colourless, pungent toxic liquid.

Hydrogen peroxide (H₂O₂)

The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.

Ethene (ethylene) (C₂H₄)

The first member in the homologous series of 1-alkenes.

Trimethylamine N(CH₃)₃

A tertiary amine with a characteristic unpleasant odour, occurring in spoiled food.

Butane (C₄H₁₀)

The fourth member in the homologous series of alkanes.

Formamide (methanamide) (HCONH₂)

A colourless, slightly viscous, hygroscopic liquid used in the production of formic acid, hydrogen cyanide and other organic compounds.

Dimethylamine (NH(CH₃)₂)

A colourless gas with a pungent odour. It is widely used in industry.

Aniline (C₆H₅NH₂)

The simplest aromatic amine. Its scientific name is phenylamine.

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