Quinaldine
Structural Formula Vector Image
Title: Quinaldine
CAS Registry Number: 91-63-4
CAS Name: 2-Methylquinoline
Molecular Formula: C10H9N
Molecular Weight: 143.19
Percent Composition: C 83.88%, H 6.34%, N 9.78%
Literature References: Occurs in coal tar; made from aniline, acetaldehyde and HCl. Lab procedure: A. I. Vogel, Practical Organic Chemistry (Longmans, London, 3rd ed., 1959) p 831; Gattermann-Wieland, Praxis des Organischen Chemikers (de Gruyter, Berlin, 40th ed., 1961) p 318. Pharmacology: Brown et al., Comp. Biochem. Physiol. 42A, 223 (1972). Toxicity data: Smyth et al., Arch. Ind. Hyg. Occup. Med. 4, 119 (1951); L. L. Marking, Invest. Fish Control 23, 3 (1969).
Properties: Colorless, oily liquid; quinoline odor; becomes reddish-brown on exposure to air. d ~1.06. bp 246-247°. Practically insol in water. Sol in chloroform, ether. Keep tightly closed and protected from light. LD50 orally in rats: 1.23 g/kg (Smyth).
Boiling point: bp 246-247°
Density: d ~1.06
Toxicity data: LD50 orally in rats: 1.23 g/kg (Smyth)
 
Derivative Type: Sulfate
CAS Registry Number: 655-76-5
Molecular Formula: C10H9N.H2SO4
Molecular Weight: 241.26
Percent Composition: C 49.78%, H 4.60%, N 5.81%, S 13.29%, O 26.53%
Literature References: Prepn: S. Hoogewerff, W. A. Van Dorp, Rec. Trav. Chim. 3, 345 (1884); J. L. Allen, J. B. Sills, Invest. Fish Control 47, 3 (1973). Efficacy as anesthetic in fish: P. A. Gilderhus et al., ibid. 49, 3 (1973); G. C. Blasiola Jr., J. Fish Biol. 10, 113 (1977). Toxicity: L. L. Marking, V. K. Dawson, Invest. Fish Control 48, 3 (1973).
Properties: Light yellow crystalline powder, mp 211-214°. uv max (0.1N H2SO4): 236, 317 nm. Soly (g/100 ml) in water 104.05, in methanol 7.44, in ethanol 2.27, in acetone 0.08. Practically insol in ether, benzene, hexane. LC50 (96 hour) in largemouth bass: 6.80 mg/l; in carp: 72.5 mg/l (Marking, Dawson).
Melting point: mp 211-214°
Absorption maximum: uv max (0.1N H2SO4): 236, 317 nm
Toxicity data: LC50 (96 hour) in largemouth bass: 6.80 mg/l; in carp: 72.5 mg/l (Marking, Dawson)
 
Use: As anesthetic in transport and handling of fish.

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