Title: 1,2-Naphthoquinone
CAS Registry Number: 524-42-5
CAS Name: 1,2-Naphthalenedione
Additional Names: b-naphthoquinone
Molecular Formula: C10H6O2
Molecular Weight: 158.15
Percent Composition: C 75.94%, H 3.82%, O 20.23%
Literature References: Prepd by oxidation of 1-amino-2-naphthol with ferric chloride: Fieser, Org. Synth. 17, 68 (1937); by oxidation of naphthalene: Milas, US 2395638 (1946 to Research Corp.); by bacterial dissimilation of naphthalene: Murphy, Stone, Can. J. Microbiol. 1, 579 (1955); from tetrachloro-o-benzoquinone: Horner, Dürckheimer, Z. Naturforsch. 14b, 741 (1959). Structure: Hodgson, Hathaway, Trans. Faraday Soc. 41, 115 (1945). Spectroscopic properties: Oliver et al., Tetrahedron 24, 4067 (1968).
Properties: Golden yellow needles, dec 145-147°. uv max (abs alc): 250, 340, 405 nm (log e 4.35, 3.40, 3.40). Sol in alc, benzene, ether, 5% NaOH, 5% NaHCO3, concd H2SO4 with green color. Practically insol in water.
Absorption maximum: uv max (abs alc): 250, 340, 405 nm (log e 4.35, 3.40, 3.40)
Derivative Type: 2-Semicarbazone
CAS Registry Number: 31853-38-0
Additional Names: Naftazone
Trademarks: Haemostop Injection; Mediaven (Syntex); Karbinon (Badrial)
Molecular Formula: C11H9N3O2
Molecular Weight: 215.21
Percent Composition: C 61.39%, H 4.22%, N 19.53%, O 14.87%
Use: As reagent for resorcinol and thalline.
Therap-Cat: 2-Semicarbazone as hemostatic.
Keywords: Hemostatic. |