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CAS No 4940-11-8 , 2-ethyl-3-hydroxypyran-4-one

  • Name: 2-ethyl-3-hydroxypyran-4-one
  • Synonyms: Veltol plus; 2-Ethyl pyromeconic acid; 4940-11-8; 2-Ethyl-3-hydroxy-4-pyrone;2-Ethyl-3-hydroxy-4H-pyran-4-one; 3-Hydroxy-2-ethyl-4-pyrone;2-ethyl-3-hydroxypyran-4-one;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 85-95 ºC
  • Flash Point: 124.8 ºC
  • Boiling Point: 290.3 ºCat 760 mmHg
  • Density: 1.261 g/cm3
  • Water Solubility: 1 - 2 (g/100g)
  • Safety Statements: R22
  • Hazard Symbols: Xn: Harmful;
  • Flash Point: 124.8 ºC
  • EINECS: 225-582-5
  • Molecular Weight: 140.13662
  • InchiKey: YIKYNHJUKRTCJL-UHFFFAOYSA-N
  • InChI: InChI=1S/C7H8O3/c1-2-6-7(9)5(8)3-4-10-6/h3-4,9H,2H2,1H3
  • Risk Statements: S36
  • Molecular Formula: C7H8O3
  • Molecular Structure:CAS No:4940-11-8 2-ethyl-3-hydroxypyran-4-one

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References of 2-ethyl-3-hydroxypyran-4-one
Title: Ethyl Maltol
CAS Registry Number: 4940-11-8
CAS Name: 2-Ethyl-3-hydroxy-4H-pyran-4-one
Synonyms: 2-ethylpyromeconic acid; Veltol-Plus
Molecular Formula: C7H8O3
Molecular Weight: 140.14
Percent Composition: C 59.99%, H 5.75%, O 34.25%
Literature References: Synthetic analog of maltol, q.v. Prepn: C. R. Stephens, Jr. et al., BE 651427; C. R. Stephens, Jr., R. P. Allingham, US 3376317 (1965, 1968 both to Pfizer). Synthesis: I. Ichimoto, C. Tatsumi, Agric. Biol. Chem. 34, 961 (1970). Toxicity studies: E. J. Gralla et al., Toxicol. Appl. Pharmacol. 15, 604 (1969). GC determn in apple juice: S. W. Gunner et al., J. AOAC Int. 51, 959 (1968). Solid phase microextraction and microwave assisted extraction fom food products: Y. Wang et al., J. High Resolut. Chromatogr. 20, 213 (1997). Metabolism in dogs: H. H. Rennhard, J. Agric. Food Chem. 19, 152 (1971). Crystal structures of polymorphs: S. D. Brown et al., Acta Crystallogr. C51, 1335 (1995). Review of use as a food additive: D. T. LeBlanc, H. A. Akers, Food Technol. 43, 78-84 (1989).
Properties: Crystals from chloroform, mp 89-90° (Ichimoto). Also reported as crystals from water, mp 89-92° (Gunner). Cotton candy, caramel-like odor. uv max (methanol): 278 nm (e 8200). LD50 orally in male mice, male rats, female rats, chicks (mg/kg): 780, 1150, 1200, 1270 (Gralla).
Melting point: mp 89-90° (Ichimoto); mp 89-92° (Gunner)
Absorption maximum: uv max (methanol): 278 nm (e 8200)
Toxicity data: LD50 orally in male mice, male rats, female rats, chicks (mg/kg): 780, 1150, 1200, 1270 (Gralla)
Use: Flavor and fragrance enhancer in foods, esp baked goods, beverages, and synthetic berry and citrus flavorings; minimizes undesirable flavors in tobacco products, cough syrup, vitamins, cosmetics, and saccharin-containing products.