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

A10813 Levulinic acid, 98%

CAS 번호
123-76-2
동의어
4-Ketopentanoic acid
4-Oxopentanoic acid

사이즈 가격 ($) 수량 재고 여부
250g 34.80
1000g 95.10
장바구니에 추가 대량 견적에 추가 항목 보기

Levulinic acid, 98%

MDL
MFCD00002796
EINECS
204-649-2

화학적 특성

화학식
C5H8O3
화학 식량
116.12
융점
26-31°
비등점
245-246°
인화점
137°(278°F)
밀도
1.134
굴절률
1.4415
감도
Light Sensitive
용해도
Soluble in water ( 675g/L at 20°C).

용도

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).

참고

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

참조 문헌

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).

GHS 해저드 및 주의 설명서

해저드 설명서 (EU): H302-H314-H318

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

주의 설명서: P280-P305+P351+P338-P309-P310a

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/doctor

기타 참조

Merck
14,5472
바일슈타인
506796
위험 등급
8
포장 그룹
III
통합 관세 코드
2918.30
TSCA(독성물질규제법)"
Yes
RTECS(화학물질 독성 등록)
OI1575000

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