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123-76-2

Basic Information
CAS No.: 123-76-2
Name: Levulinic acid
Molecular Structure:
Molecular Structure of 123-76-2 (Levulinic acid)
Formula: C5H8O3
Molecular Weight: 116.12
Synonyms: Propionic acid, 3-acetyl-;4-Ketovaleric acid;Valeric acid, 4-oxo-;Pentanoic acid, 4-oxo-;Pentanoic acid,4-oxo-;4-Oxopentanoic acid;LEVA;Levulinicacid;Usaf cz-1;Acetopropionic acid;4-Oxovaleric acid;.gamma.-Ketovaleric acid;3-Acetylpropionic acid;4-oxopentanoate;
EINECS: 204-649-2
Density: 1.129 g/cm3
Melting Point: 30-33 °C(lit.)
Boiling Point: 242.9 °C at 760 mmHg
Flash Point: 115 °C
Solubility: Soluble in water ( 675g/L at 20°C).
Appearance: clear yellowish liquid after melting
Hazard Symbols: HarmfulXn,CorrosiveC
Risk Codes: 22-36/37/38-34
Safety: 26-45-36/37/39
Transport Information: 3261
PSA: 54.37000
LogP: 0.44020
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    Product Name: Levulinic acid CAS: 123-76-2 MF: C5H8O3 MW: 116.12 EINECS: 204-649-2 Mol File: 123-76-2.mol Levulinic acid Structure Levulinic acid Chemical Properties Melting point 30-33 °C (lit.) Boiling point 245-246

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Specification

Levulinic acid, or 4-oxopentanoic acid, is an organic compound with the formula CH3C(O)CH2CH2CO2H. It is also named as β-Acetylpropionic acid; γ-Ketovaleric acid; Laevulinic acid; Levulic acid; 3-Acetylpropionic acid; 4-Ketovaleric acid; 4-Oxopentanoic acid; 4-Oxovaleric acid; Acetopropionic acid; LEVA. It is classified as a keto acid. This white crystalline is soluble in water and polar organic solvents. It is derived from degradation of cellulose and is a potential precursor to biofuels. Levulinic acid is a precursor to nylon-like polymers, synthetic rubbers, and plastics. And it is a versatile synthetic intermediate in the synthesis of pharmaceuticals. Besides, it is a precursor in the industrial production of other chemical commodities such as methyltetrahydrofuran, valerolactone, and ethyl levulinate.

Physical properties about Levulinic acid are: (1)ACD/LogP: -0.49; (2)ACD/LogD (pH 5.5): -1.29; (3)ACD/LogD (pH 7.4): -3.08; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 2.06; (7)ACD/KOC (pH 7.4): 1.00; (8)#H bond acceptors: 3; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 3; (11)Index of Refraction: 1.435; (12)Molar Refractivity: 26.807 cm3; (13)Molar Volume: 102.815 cm3; (14)Polarizability: 10.627 10-24cm3; (15)Surface Tension: 39.6129989624023 dyne/cm; (16)Density: 1.129 g/cm3; (17)Flash Point: 114.964 °C; (18)Enthalpy of Vaporization: 52.85 kJ/mol; (19)Boiling Point: 242.892 °C at 760 mmHg; (20)Vapour Pressure: 0.0109999999403954 mmHg at 25°C

Preparation of Levulinic acid: Levulinic acid is prepared in the laboratory by heating sucrose with concentrated hydrochloric acid. The process proceeds via the intermediacy of glucose, which is isomerized to fructose and then hydroxymethylfurfural. Other sugar-derivatives, such as levulose, inulin, starch, and other acids, e.g. sulfuric acids can also be used.

When you are using this chemical, please be cautious about it as the following:
1. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
2. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible);
3. Wear suitable protective clothing and gloves;

You can still convert the following datas into molecular structure:
(1)InChI=1S/C5H8O3/c1-4(6)2-3-5(7)8/h2-3H2,1H3,(H,7,8);
(2)InChIKey=JOOXCMJARBKPKM-UHFFFAOYSA-N;
(3)SmilesC(CCC(O)=O)(C)=O;

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 450mg/kg (450mg/kg)   National Technical Information Service. Vol. AD607-952,
rabbit LD50 skin > 5gm/kg (5000mg/kg)   Food and Cosmetics Toxicology. Vol. 17, Pg. 847, 1979.
rat LD50 oral 1850mg/kg (1850mg/kg)   Food and Cosmetics Toxicology. Vol. 17, Pg. 847, 1979.

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