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CAS No 441-38-3 , alpha-Benzoin oxime

  • Name: alpha-Benzoin oxime
  • Synonyms: 2-Hydroxy-1,2-diphenylethanone oxime (alpha-form); a-Benzoin oxime, (Cupron); Cupron;alpha-Benzoin oxime;
  • CAS Registry Number:
  • Transport: 50kgs
  • Melting Point: 153-155 °C(lit.)
  • Flash Point: 270.4°C
  • Boiling Point: 417.8°C at 760 mmHg
  • Density: 1.13g/cm3
  • Refractive index: 1.58
  • Water Solubility: sparingly soluble AUTOIGNITION
  • Safety Statements: S24/25;
  • Hazard Symbols: 3 (Packing Group: III)
  • Flash Point: 270.4°C
  • EINECS: 207-127-2
  • Molecular Weight: 227.26
  • InChI: InChI=1/C14H13NO2/c16-14(12-9-5-2-6-10-12)13(15-17)11-7-3-1-4-8-11/h1-10,14,16-17H/b15-13+
  • Risk Statements: S24/25:Avoidcontactwithskinandeyes.;
  • Molecular Formula: C14H13NO2
  • Molecular Structure:CAS No:441-38-3 alpha-Benzoin oxime

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441-38-3 BENZOIN OXIME (CUPRON) FOR ANALYTICAL PURPOSE

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References of alpha-Benzoin oxime
Title: Benzoin Oxime
CAS Registry Number: 441-38-3
CAS Name: 2-Hydroxy-1,2-diphenylethanone oxime
Synonyms: 2-hydroxy-2-phenylacetophenone oxime
Molecular Formula: C14H13NO2
Molecular Weight: 227.26
Percent Composition: C 73.99%, H 5.77%, N 6.16%, O 14.08%
Literature References: Two isomers occur: a or anti and b or syn. Both have been prepd from benzoin and hydroxylamine hydrochloride. Prepn of a-form: Werner, Detscheff, Ber. 38, 69 (1905); F. J. Welcher, Organic Analytical Reagents vol. III (Van Nostrand, New York, 1947) pp 239-251. Prepn of b-form: Werner, Detscheff, loc. cit. Configuration of a- and b-forms: Meisenheimer, Meis, Ber. 57, 289 (1924).
 
Derivative Type: a-Form
Trademarks: Cupron (Ayerst)
Properties: Prisms from benzene, mp 151-152°. Darkens on exposure to light. Slightly sol in water; sol in alc, aq ammonium hydroxide soln. Protect from light.
Melting point: mp 151-152°
 
Derivative Type: b-Form
Properties: Prismatic crystals from ether. Ether of crystn is lost on standing in air. Ether-free compd, mp 99°.
Melting point: mp 99°
 
Use: The a-form is used in the detection and determination of Cu, Mo, and W: Welcher, loc. cit.