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Phylloquinone

Phylloquinone

IUPAC name	2-methyl-3- (3,7,11,15-tetramethylhexadec-2-enyl) naphthalene-1,4-dione
Identifiers
CAS number
PubChem	4812
SMILES	CC1=C(C(=O)C2=CC=CC=C2C1=O) CC=C(C)CCCC(C)CCCC(C)CCCC(C)C
Properties
Molecular formula	C₃₁H₄₆O₂
Molar mass	450.69574
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Phylloquinone is a polycyclic aromatic ketone, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituents. It is often called vitamin K₁.

It is a fat-soluble vitamin that is stable to air and moisture but decomposes in sunlight. It is found naturally in a wide variety of green plants.

Phylloquinone is also an antidote for coumatetralyl.

A stereoisomer of phylloquinone is called vitamin k₁ (note the difference in capitalization).

v • d • e Vitamins (A11)
fat soluble	A (Retinol, Beta-carotene, Tretinoin, Alpha-carotene) - D (Ergocalciferol, Cholecalciferol, Dihydrotachysterol, Calcitriol, Calcidiol) - E (Tocopherol, Tocotrienol) - K (Naphthoquinone, Phylloquinone/K1, Menatetrenone/K2)
water soluble: B vitamins	B₁ (Thiamine, Sulbutiamine, Benfotiamine) - B₂ (Riboflavin) - B₃ (Niacin, Nicotinamide) - B₅ (Pantothenic acid, Dexpanthenol, Pantethine) - B₆ (Pyridoxine, Pyridoxal phosphate) - B₇ (Biotin) - B₉ (Folic acid) - B₁₂ (Cyanocobalamin, Hydroxocobalamin, Methylcobalamin, Cobamamide)
water soluble: other	C (Ascorbic acid) - Choline