## Pages

### Chemistry

A chemfig package is based on tikz package. It is used to draw chemical structure diagrams. The manual of this package can be found in your $\TeX$ system. You may want to try the following examples:

1. Triphenylmethane

2. Caffeine

3. Chemical Reaction

You may also have a look at other packages used for drawing molecules like ochem, streetex and xymtex.

The mhchem package provides commands for typesetting chemical molecular formulas and equations. To use this package, we can find its manual in our installed $\TeX$ distribution. See the following samples:

Other packages provide commands and macros for typesetting chemical formulas are chemformula and chemmacros.

$\TeX$ or $\LaTeX$ commands are supported. For example, a command $\$ \TeX $\$ produces $\TeX$.