Suggestions for Chemarrow

The following packages have something in common with the package Chemarrow. The packages are ordered in decreasing similarity.

Package chemarr: Arrows for chemists
Package ghsystem: Globally harmonised system of chemical (etc) naming
Package achemso: Support for American Chemical Society journal submissions
Package chemsym: Macros for typing chemical symbols
Package xymtex: Typesetting chemical structures
Package carbohydrates: Carbohydrate molecules with chemfig
Package modiagram: Drawing molecular orbital diagrams
Package chemnum: A method for numbering chemical compounds
Package chemgreek: Upright Greek letters in chemistry
Package pb-diagram: A commutative diagram package using LAMS-TeX or Xy-pic fonts
Package chemformula: Command for typesetting chemical formulas and reactions
Package transition-metals: Hybridization diagrams for transition metal complexes
Package chemtex: Structural chemistry
Package chemfig: Draw molecules with easy syntax
Package atableau: A LaTeX package for symmetric group combinatorics
Package sankey: Draw Sankey diagrams with TikZ
Package upgreek: Upright Greek letters
Package syntax-mdw: Typeset syntax descriptions
Package tqft: Drawing TQFT diagrams with TikZ/PGF
Package chronosys: Drawing time-line diagrams
Package venndiagram: Creating Venn diagrams with TikZ
Package sfg: Draw signal flow graphs
Package babel-esperanto: Babel support for Esperanto
Package pgfgantt: Draw Gantt charts with TikZ
Package tikz-timing: Easy generation of timing diagrams as TikZ pictures
Package dynkin-diagrams: Draw Dynkin, Coxeter, and Satake diagrams using TikZ
Package lie-hasse: Draw Hasse diagrams
Package schemata: Print topical diagrams
Package bpchem: Typeset chemical names, formulae, etc.
Package chemscheme: Support for chemical schemes
Package chemschemex: Typeset and cross-reference chemical schemes based on TikZ code