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CAS No 288-32-4 , 1H-imidazole

  • Name: 1H-imidazole
  • Synonyms: Imutex; Miazole;1H-Imidazole; Glyoxalin; Glyoxaline; Iminazole; Imidazol;1H-imidazole; 288-32-4; 1,3-Diazole;
  • CAS Registry Number:
  • Transport: UN 1759
  • Melting Point: 86-90 ºC
  • Flash Point: 145 ºC
  • Boiling Point: 255-256 ºC
  • Density: 1.116 g/cm3
  • Refractive index: 1.4801
  • Water Solubility: 633 G/L (20 ºC)
  • Safety Statements: R22;R34;R63
  • Hazard Symbols: C: Corrosive;
  • HS Code: 29332990
  • Flash Point: 145 ºC
  • EINECS: 206-019-2
  • Molecular Weight: 68.07726
  • InchiKey: RAXXELZNTBOGNW-UHFFFAOYSA-N
  • InChI: InChI=1S/C3H4N2/c1-2-5-3-4-1/h1-3H,(H,4,5)
  • Risk Statements: S22;S26;S36/37/39;S45
  • Molecular Formula: C3H4N2
  • Molecular Structure:CAS No:288-32-4 1H-imidazole

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288-32-4 Imidazole

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References of 1H-imidazole
Title: Imidazole
CAS Registry Number: 288-32-4
Synonyms: Glyoxaline; 1,3-diazole; iminazole; miazole; pyrro[b]monazole; 1,3-diaza-2,4-cyclopentadiene
Molecular Formula: C3H4N2
Molecular Weight: 68.08
Percent Composition: C 52.93%, H 5.92%, N 41.15%
Literature References: Prepd by the action of ammonia on glyoxal: Debus, Ann. 107, 204 (1858); from glyoxal, ammonia, and formaldehyde: Radziszewski, Ber. 15, 1493 (1882); Behrend, Schmitz, Ann. 277, 338 (1893); vapor phase synthesis from formamide and ethylenediamine in presence of a dehydrogenation catalyst: Green, US 3255200 (1966 to Air Products and Chemicals). Crystal structure: B. M. Craven et al., Acta Crystallogr. 33B, 2585 (1977). Acute toxicity: Nishie et al., Toxicol. Appl. Pharmacol. 14, 301 (1969). Review: Pyman, J. Soc. Dyers Colour. 36, 107 (1920). Monograph: K. Hofmann, Imidazole and Its Derivatives (Interscience, New York, 1953). Review of imidazole chemistry: Grimmett, Adv. Heterocycl. Chem. 12, 103-183 (1970).
Properties: Stout prisms from benzene. mp 90-91°. bp760 257°; bp20 165-168°; bp12 138.2°. Weak base. pK (25°): 6.92. Absorption spectrum: Rosanov, J. Russ. Phys. Chem. Soc. 48, 1241 (1916); Chem. Zentralbl. 1923, III, 1080. Freely sol in water, alcohol, ether, chloroform, pyridine; slightly sol in benzene; very sparingly sol in petr ether. LD50 in mice (mg/kg): 610 i.p.; 1880 orally (Nishie).
Melting point: mp 90-91°
Boiling point: bp760 257°; bp20 165-168°; bp12 138.2°
pKa: pK (25°): 6.92
Toxicity data: LD50 in mice (mg/kg): 610 i.p.; 1880 orally (Nishie)