Datatypes

Molecular Formula

ID molformula

Molecular formulae indicate the simple numbers of each type of atom in a molecule of a molecular substance.

Categories

Chemistry

Countries

Global (not tied to a country)

Languages

Common to most languages

AutoType benchmark

chemical

Schema.org

molecularFormula

Wikidata

P274

Quality

73/100 · missing: anchored regexp, second example, negative example, translation

Metacrafter rules

1 rule (1 by field name, 0 by value)

• molformulabyfieldname field, common/chemistry.yaml

Supported by tools

Auto-Type, metacrafter

Regular expression

([αβγδφωλμπ]-)?([([]*[A-Z☐][ub]?[a-z]?[₁₂₃₄₅₆₇₈₉₀.]*(\)?[¹²³⁴⁵⁶⁷⁸⁹⁰]*[⁺⁻]?)?[\])|,₁₂₃₄₅₆₇₈₉₀]*(·\(?[-0-9.]*n?\)?)?)+

Python re syntax. Not anchored: it can match inside longer text.

Examples

Sources

• wikipedia: https://en.wikipedia.org/wiki/Chemical_formula
• bioschemas: https://bioschemas.org/types/MolecularEntity/0.3-RELEASE-2019_09_02#molecularFormula
• schema.org: https://schema.org/molecularFormula
• wikidata: https://www.wikidata.org/wiki/Property:P274

Use this record

• Page URL: http://registry.apicrafter.io/datatype/molformula
• JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
• Improve it: edit data/datatypes/any/chemistry/molformula.yaml on GitHub