76492

10,12-Pentacosadiynoic acid

≥97% (HPLC)

• Synonym(s): PCDA
• Empirical Formula (Hill Notation): C₂₅H₄₂O₂
• CAS Number: 66990-32-7
• Molecular Weight: 374.60
• Beilstein: 4189973
• MDL number: MFCD00041684
• UNSPSC Code: 12352100
• PubChem Substance ID: 57652644
• NACRES: NA.22

Properties

• Quality Level: 100
• Assay: ≥97% (HPLC)
• form: crystals
• functional group: carboxylic acid
• SMILES string: CCCCCCCCCCCCC#CC#CCCCCCCCCC(O)=O
• InChI: 1S/C25H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25(26)27/h2-12,17-24H2,1H3,(H,26,27)
• InChI key: ZPUDRBWHCWYMQS-UHFFFAOYSA-N

Description

Application

10,12-Pentacosadiynoic acid (PCDA) is an amphiphilic diacetylene that can be used:

• In combination with a semifluorinated tetracosane ((CF₃(CF₂)₇(CH₂)₁₅CH₃) to synthesize mixed monolayer by photopolymerization.
• For the conversion of hydrophobic upconverting nanoparticles (UCNPs) to hydrophilic.
• To synthesize a polymer by combining with pyridine-2-aldoxime for colorimetric detection of malathion.
• To synthesize a thermochromic sensor constituting polymer fibres with monomeric unit of two PCDA linked by a p-phenylene group (bis-PCDA-Ph).
• As an inert coating material upon self-assembly and photopolymerization to modify the surface of Fe₃O₄ nanoparticles.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves