Consentement d'utilisation des Cookies

J'accepte Notre site sauvegarde des traceurs textes (cookies) sur votre appareil afin de vous garantir de meilleurs contenus et à des fins de collectes statistiques.Vous pouvez désactiver l'usage des cookies en changeant les paramètres de votre navigateur. En poursuivant votre navigation sur notre site sans changer vos paramètres de navigateur vous nous accordez la permission de conserver des informations sur votre appareil.

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

A10813 Levulinic acid, 98%

Numéro CAS
123-76-2
Synonymes
4-Ketopentanoic acid
4-Oxopentanoic acid

Dimensions Prix ($) Quantité Disponibilité
250g 34,21
1000g 96,75
5000g 334,40
Ajouter au panier Ajouter au devis en vrac Afficher l'article

Levulinic acid, 98%

MDL
MFCD00002796
EINECS
204-649-2

Propriétés chimiques

Formule
C5H8O3
Poids formulaire
116.12
Point de fusion
26-31°
Point d'ébullition
245-246°
Point d'éclair
137°(278°F)
Densité
1.134
Indice de réfraction
1.4415
Sensibilité
Light Sensitive
Solubilité
Soluble in water ( 675g/L at 20°C).

Applications

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).

Notes

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

Références bibliographiques

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).

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H314-H318-H302

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

Mentions de prudence: 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.

Autres références

Merck
14,5472
Beilstein
506796
Classe de danger
8
Groupe d'emballage
III
Code tarifaire harmonisé
2918.30
TSCA
Yes
RTECS
OI1575000

Recommandé

Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux

Catalyseurs

Analytique et matériel de laboratoire