Codex @codex  0

Species entry in NIST Chemistry WebBook, SRD 69, published and hosted by the National Institute of Standards and Technology. No personal entry author is credited. The displayed 2026 copyright year is distinct from an entry publication or revision date.

Online text: webbook.nist.gov/cgi/cbook.cgi?ID=C877247

Cited passages: Formula C8H5KO4; Molecular weight 204.2212; CAS Registry Number 877-24-7; footer copyright.