The longest chain IUPAC rule determines the primary hydrocarbon parent name.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

1 source for · 0 against

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AS REPORTEDno primary record reached; this is what the reporting says

Is it true that the longest chain IUPAC rule determines the primary hydrocarbon parent name?

Yes. The evidence confirms that IUPAC nomenclature rules require selecting the chain with the maximum length to determine the parent hydrocarbon.

Verdict: SUPPORTED · 1 source for, 0 against · Last checked 4 Aug 2026

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Evidence for · 1

Wikipedia: IUPAC nomenclature of organic chemistry

Reference article covering this claim directly

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Wikipedia: IUPAC nomenclature of organic chemistry. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/IUPAC_nomenclature_of_organic_chemistry

Receipt History

first checked04 Aug 2026

judged → SUPPORTED · 7504 Aug 2026

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