phthiocol

noun

phthi·o·col ˈthī-ə-ˌkȯl

-ˌkōl

: a yellow crystalline quinone C₁₁H₈O₃ with vitamin K activity that is isolated from the human tubercle bacillus and also made synthetically

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“Phthiocol.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/phthiocol. Accessed 4 Nov. 2025.

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