120650-77-3

Basic information

• Product Name: METHYL 10,12-PENTACOSADIYNOATE
• Synonyms: METHYL 10,12-PENTACOSADIYNOATE;TIMTEC-BB SBB009077;10,12-Pentacosadiynoic acid methyl ester
• CAS NO: 120650-77-3
• Molecular Formula: C26H44O2
• Molecular Weight: 388.63
• Mol File: 120650-77-3.mol
• Article Data: 3

Chemical Properties

• Melting Point: 27-28°C
• Boiling Point: 491.4°C at 760 mmHg
• Flash Point: 208°C
• Appearance: /
• Density: 0.908g/cm³
• Vapor Pressure: 8.39E-10mmHg at 25°C
• Refractive Index: 1.474
• Sensitive: Light Sensitive
• BRN: 4750221
• CAS DataBase Reference: METHYL 10,12-PENTACOSADIYNOATE(CAS DataBase Reference)
• NIST Chemistry Reference: METHYL 10,12-PENTACOSADIYNOATE(120650-77-3)
• EPA Substance Registry System: METHYL 10,12-PENTACOSADIYNOATE(120650-77-3)

Safety Data

• Safety Statements: 24/25
• Hazardous Substances Data: 120650-77-3(Hazardous Substances Data)

Usage

Uses

10,12-Pentacosadiynoic Acid Methyl Ester is a reactant in the preparation of Diacetylenic hydroxamic acids.

InChI:InChI=1/C26H44O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26(27)28-2/h3-13,18-25H2,1-2H3

Upstream product

• 67-56-1 methanol 
• 66990-32-7 10,12-pentacosanodiynoic acid 
• 128937-83-7 pentacosa-10,12-diynoyl chloride 

Relevant articles and documents

Low Temperature Thermochromic Polydiacetylenes: Design, Colorimetric Properties, and Nanofiber Formation

Owing to their stimulus responsive color changing properties, polydiacetylenes (PDAs) have been extensively investigated as colorimetric sensors. Thermochromic properties of PDAs have been the central focus of a number of investigations that were aimed not only at gaining a fundamental understanding of the physical basis of the color change but also at developing practical applications as temperature sensors. The thermochromic transition temperature of a PDA polymer is closely related to the melting point of the corresponding diacetylene (DA) monomer. In addition, the majority of PDAs described to date undergo a blue-to-red color change above room temperature because PDAs are generally derived from DA monomers that have melting points above room temperature. In the current study, we developed a series of low temperature colorimetric PDAs that were designed based on the reasoning that removal of the sources for strong headgroup interactions would lower the melting points of the corresponding DA monomers. This strategy was used to design and fabrication of PDA sensors that display color transitions in the range of 5-30°C. Moreover, the thermochromic transition temperatures of the PDAs were found to decrease by ca. 10°C when the alkyl chain length in the DA monomer is truncated by two methylene units. The results of FTIR and Raman spectroscopic analyses suggest that the PDA alkyl chain adopts an all-trans conformation in the blue-phase and some gauche forms exist in the alkyl chain in the red-phase PDA. Finally, the new PDAs are stable up to 300°C, and their processable nature enables them to be fabricated in nanofiber forms by employing an anodized aluminum oxide (AAO) membrane as a template.

ANTIINFLAMMATORY AND ANALGESIC ACTIVITY OF MONO- AND DIACETYLENIC HYDROXAMIC ACIDS

-