ChemicalFormulaQ
ChemicalFormulaQ[formula]
returns True if formula is a valid ChemicalFormula object and False otherwise.
Examples
open all close allBasic Examples (2)
Scope (1)
When given invalid input, ChemicalFormula will return unevaluated:
This will still match a simple pattern:
Use a PatternTest to make a more robust pattern:
Text
Wolfram Research (2025), ChemicalFormulaQ, Wolfram Language function, https://reference.wolfram.com/language/ref/ChemicalFormulaQ.html.
CMS
Wolfram Language. 2025. "ChemicalFormulaQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/ChemicalFormulaQ.html.
APA
Wolfram Language. (2025). ChemicalFormulaQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/ChemicalFormulaQ.html