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123-76-2 - Levulinic acid, 98% - 4-Ketopentanoic acid - 4-Oxopentanoic acid - A10813 - Alfa Aesar

A10813 Levulinic acid, 98%

Número CAS
123-76-2
Nombre Alternativo
4-Ketopentanoic acid
4-Oxopentanoic acid

Tamaño Precio ($) Cantidad Disponibilidad
250g 34,21
1000g 96,75
5000g 334,40
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Levulinic acid, 98%

MDL
MFCD00002796
EINECS
204-649-2

Propiedades químicas

Fórmula
C5H8O3
Peso molecular
116.12
Punto de fusión
26-31°
Punto de ebullición
245-246°
Punto de inflamabilidad
137°(278°F)
Densidad
1.134
Índice de refracción
1.4415
Sensibilidad
Light Sensitive
Solubilidad
Soluble in water ( 675g/L at 20°C).

Aplicaciones

Mainly used as an intermediate for medicines, agricultural chemical and organic synthesis. Used as raw material of perfume, modifier and solvent of plastics. It is also employed as an additive of polymer, paints and lubricating oil. Also used as a surfactant and auxiliary for making printing ink, rubber flux and cosmetics(including shampoo).

Notas

Light Sensitive. Store in dark. Store away from oxidizing agents and bases.

Referencias documentales

Joseph J Bozell.; L Moens.; D.C Elliott.; Y Wang.; G.G Neuenscwander.; S.W Fitzpatrick.; R.J Bilski.; J.L Jarnefeld. Production of levulinic acid and use as a platform chemical for derived products. Resources, Conservation and Recycling. 2000, 28 (3-4), 227-239.

Jaroslav Horvat.; Branimir Klai?.; Biserka Metelko.; Vitomir Šunji?. Mechanism of levulinic acid formation. Tetrahedron Letters. 1985, 26 (17), 2111-2114.

Alcohols and phenols can be protected as levulinate (Lev) esters. Ester formation has been brought about, e.g. by reaction with an alcohol in the presence of DCC and DMAP: Tetrahedron Lett., 4875 (1976); 23, 2615 (1982). The same references describe facile, selective cleavage by the use of hydrazine hydrate in pyridine/acetic acid. For use of 2-Chloro-1-methyl­pyridinium iodide, A12820, in the formation of Lev esters, see: Tetrahedron Lett., 21, 381 (1980). Alternative cleavage methods include: borohydride in water: J. Am. Chem. Soc., 97, 1614 (1975); MeMgI: benzoate esters unaffected: J. Chem. Soc., Chem. Commun., 681 (1992); sodium sulfite/ bisulfite under neutral conditions, effective for Lev esters of nucleosides, carbohydrates and steroids: Chem. Lett., 585 (1988). Lev esters have also been prepared using 2-Ethoxy-1-ethoxycarbonyl-1,2-dihydroquinoline, A13724: Tetrahedon Lett., 23, 2615 (1982).

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H314-H318-H302

Causes severe skin burns and eye damage. Causes serious eye damage. Harmful if swallowed.

Indicaciones de precaución: P280-P305+P351+P338-P309-P310

Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or if you feel unwell: Immediately call a POISON CENTER or doctor/physician.

Otras referencias

Merck
14,5472
Beilstein
506796
Clase de peligro
8
Grupo de embalaje
III
Código de tarifa arancelaria unificado
2918.30
TSCA
Yes
RTECS
OI1575000

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