Dyeing a flower

We spray a transparent liquid on the petals of a flower and watch it turn purple. Let’s learn the chemical trick behind this phenomenon.

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Formamide (methanamide) (HCONH₂)

A colorless, slightly viscous, hygroscopic liquid used in the production of formic acid,...

Lactose (C₁₂H₂₂O₁₁)

A type of sugar found in mammalian milk.

Pyridine (C₅H₅N)

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

Ethene (ethylene) (C₂H₄)

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

Valine

One of the 20 amino acids that make up proteins.

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

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

Naphtalene (C₁₀H₈)

The simplest polycyclic aromatic hydrocarbon.

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