4-METHYLUMBELLIFERYL STEARATE

Base Information

• Chemical Name: 4-METHYLUMBELLIFERYL STEARATE
• CAS No.: 79408-85-8
• Molecular Formula: C₂₈H₄₂O₄
• Molecular Weight: 442.639
• Mol file: 79408-85-8.mol

Synonyms:4-Methylumbelliferylstearate

Chemical Property of 4-METHYLUMBELLIFERYL STEARATE

Chemical Property:

• Vapor Pressure: 1.8E-12mmHg at 25°C
• Boiling Point: 557.7°C at 760 mmHg
• Flash Point: 272.1°C
• Density: 1.013g/cm³
• Storage Temp.: −20°C

Purity/Quality:

99.3% ^*data from raw suppliers

4-MethylumbelliferylStearate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Total 1 MSDS from other Authors

Useful:

• Uses: 4-Methylumbelliferyl stearate is a substrate for the measurement of lipase activity.

Technology Process of 4-METHYLUMBELLIFERYL STEARATE

There total 3 articles about 4-METHYLUMBELLIFERYL STEARATE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

7-hydroxy-4-methyl-chromen-2-one (90-33-5,79566-13-5) + Stearoyl chloride (112-76-5) → 7-(heptadecanylcarbonyl)oxy-4-methyl-2H-1-benzopyran-2-one (79408-85-8)

Guidance literature:

With sulfuric acid; for 7h; Reflux;

DOI:10.2174/1570180815666180327124634

Reference yield:

stearic acid (57-11-4) → 7-(heptadecanylcarbonyl)oxy-4-methyl-2H-1-benzopyran-2-one (79408-85-8)

Guidance literature:

Multi-step reaction with 2 steps

1: phosphorus pentachloride / benzene / 24 h / Inert atmosphere

2: sulfuric acid / 7 h / Reflux

With phosphorus pentachloride; sulfuric acid; In benzene;

DOI:10.2174/1570180815666180327124634

Reference yield:

recorcinol (108-46-3) → 7-(heptadecanylcarbonyl)oxy-4-methyl-2H-1-benzopyran-2-one (79408-85-8)

Guidance literature:

Multi-step reaction with 2 steps

1: sulfuric acid / 18 h / 20 °C

2: sulfuric acid / 7 h / Reflux

With sulfuric acid;

DOI:10.2174/1570180815666180327124634

upstream raw materials:

7-hydroxy-4-methyl-chromen-2-one

Stearoyl chloride

stearic acid

recorcinol

Refernces

• 1、 Babiak, Peter,Reymond, Jean-Louis. "A high-throughput, low-volume enzyme assay on solid support". . p. 373 - 377. Retrieved 2007/10/03.