57403-19-7

Basic information

• Product Name: (3beta)-urs-12-en-3-yl tetradecanoate
• Synonyms: (3β)-urs-12-en-3-yl tetradecanoate; tetradecanoic acid, (3β)-urs-12-en-3-yl ester; α-Amyrin myristate
• CAS NO: 57403-19-7
• Molecular Formula: C₄₄H₇₆O₂
• Molecular Weight: 637.073
• Mol File: 57403-19-7.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 643.3°C at 760 mmHg
• Flash Point: 342.7°C
• Density: 0.97g/cm³
• Vapor Pressure: 1.93E-16mmHg at 25°C
• Refractive Index: 1.516
• CAS DataBase Reference: (3beta)-urs-12-en-3-yl tetradecanoate(CAS DataBase Reference)
• NIST Chemistry Reference: (3beta)-urs-12-en-3-yl tetradecanoate(57403-19-7)
• EPA Substance Registry System: (3beta)-urs-12-en-3-yl tetradecanoate(57403-19-7)

Safety Data

• Hazardous Substances Data: 57403-19-7(Hazardous Substances Data)

Upstream product

• 638-95-9 α-amyrin 
• 544-63-8 n-tetradecanoic acid 

Relevant articles and documents

Identification and quantification of important steryl esters in aspen wood

Steryl esters make up a major portion of the total lipids in aspen wood, and contribute significantly to pitch deposit problems during pulping. Fungal treatment of aspen is an attractive method for removing these compounds because it is inexpensive and environmentally acceptable; however, the mechanism of steryl ester removal remains unclear. Identification of the steryl esters will lead to a better understanding of how they are removed by fungi. The steryl ester fraction from aspen wood was obtained by acetone extraction then further purified by silica gel column chromatography and argentation-silica gel column chromatography. This led to the isolation of three major fractions: fraction I, fraction II, and fraction III. The major steryl esters of fractions I and II were identified by gas chromatography, gas chromatography-mass spectroscopy, and proton nuclear magnetic resonance analysis of the intact fraction as well as sterol and fatty acid moieties obtained after base hydrolysis. Identification of the steryl esters was carried out by mass spectra comparisons with steryl ester standards synthesized in the laboratory and comparison with mass spectra libraries (Wiley and NIST) by mass fragmentography. Fraction I contained primarily the palmitate, stearate, and eicosanoate esters of α- and β-amyrin. Fraction II consisted mainly of the palmitate, stearate, and eicosanoate esters of tirucalla-7,24-dien-3β-ol and lupeol.