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| Description 1,4-Naphthoquinone or para-naphthoquinone is an organic compound derived from naphthalene. Several isomeric naphthoquinones are known, notably 1,2-naphthoquinone. 1,4-Naphthoquinone forms volatile yellow triclinic crystals and has a sharp odor similar to benzoquinone. It is almost insoluble in cold water, slightly soluble in petroleum ether, and more soluble in polar organic solvents. In alkaline solutions it produces a reddish-brown color. Vitamin K is a derivative of 1,4-naphthoquinone. It is a planar molecule with one aromatic ring fused to a quinone subunit. Basic Info Chemical Name 1,4-naphthoquinone Synonyms 1,4-Naphthalenedione; 1,4-Naphthoquinone; naphthalene-1,4-dione; α-Naphthoquinone; CAS No. 130-15-4 Molecular Formula C10H6O2 Molecular Weight 158.15300 PSA 34.14000 LogP 1.62180 Properties Appearance & Physical State Yellow needles or brownish green powder with an odor of benzoquinone. Density 1.42 Boiling Point 297.9ºC at 760 mmHg Melting Point 119-122ºC Flash Point 141ºC Refractive Index 1.617 Water Solubility insoluble Stability Stable. Incompatible with strong reducing agents, strong oxidizing agents. Storage Condition Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Vapor Pressure 0.00131mmHg at 25°C |
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