23548-90-5

Basic information

• Product Name: (S)-17-(Toluene-4-sulfonyloxy)-octadecanoic acid methyl ester
• Synonyms: (S)-17-(Toluene-4-sulfonyloxy)-octadecanoic acid methyl ester
• CAS NO: 23548-90-5
• Molecular Weight: 468.698
• Mol File: 23548-90-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (S)-17-(Toluene-4-sulfonyloxy)-octadecanoic acid methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (S)-17-(Toluene-4-sulfonyloxy)-octadecanoic acid methyl ester(23548-90-5)
• EPA Substance Registry System: (S)-17-(Toluene-4-sulfonyloxy)-octadecanoic acid methyl ester(23548-90-5)

Safety Data

• Hazardous Substances Data: 23548-90-5(Hazardous Substances Data)

Upstream product

• 593-45-3 octadecane 
• 19485-99-5 (+)-(S)-17-hydroxystearic acid methyl ester 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 23548-91-6 17-D-(p-Toluolsulfonyloxy)-stearinsaeuremethylester 
• 2380-32-7 methyl 17-oxooctadecanoate 

Relevant articles and documents

Properties of unusual phospholipids. III: Synthesis, monolayer investigations and DSC studies of hydroxy octadeca(e)noic acids and diacylglycerophosphocholines derived therefrom

Diacylglycerophosphocholines containing (R)-3-, (R)-12-, (R)-17-hydroxy octadeca(e)noic acids and the corresponding racemates were synthesized and purified to homogeneity. The influence of the position of the hydroxy group on the monolayer packing properties of these fatty acids and their phosphatidylcholines was studied by Langmuir techniques and 1,2-di-[(R)-12-hydroxy-octadec-cis-9-enyl]-sn-glycero-3-phosphocholine displayed the largest lift-off area (330 A2/molecule). This result was in line with the thermotropic phase behavior of these phospholipids, as measured by differential scanning calorimetry (DSC): the gel- to liquid-crystalline phase transition temperature (T(m))passed through a minimum of -15.1°C for 1,2-di-[(R)-12-hydroxy-octadec-cis-9-enyl]-sn-glycero-3-phosphocholine.