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76492

Sigma-Aldrich

10,12-Pentacosadiynoic acid

≥97% (HPLC)

Synonym(s):

PCDA

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About This Item

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

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

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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.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

76492-25G:
76492-BULK:
76492-5G:
76492-VAR:

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG4262
BCCC2242
BCBZ8181
BCBW6780
BCBV8950

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Ting Wang et al.
Nanoscale, 9(2), 869-874 (2016-12-21)
A flexible, transparent, and portable wrist strap sensor device has been well developed from a hierarchical polydiacetylene/MoS
Wenjie Dong et al.
International journal of nanomedicine, 8, 221-232 (2013-02-14)
In this study, we immobilized polydiacetylene vesicles (PDAVs) onto the surface of polystyrene (PS) microspheres (1 μm in diameter) by using both electrical charge and conjugated forces to form a reinforced composite structure. These reinforced complexes could be easily washed
One and a half layers? Mixed Langmuir monolayer of 10, 12-pentacosadiynoic acid and a semifluorinated tetracosane.
Wang S, et al.
Langmuir, 16(6), 2882-2886 (2000)
Guang Yang et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(33), 8032-8038 (2017-04-13)
Circularly polarized light (CPL) is considered to be a true chiral entity and has been suggested as an explanation for the introduction of initial chiral biases into key biomolecular building blocks. CPL used recently asymmetric photochemical reactions is of wavelengths
Jung Lee et al.
Nature communications, 4, 2461-2461 (2013-09-13)
As they have been designed to undergo colorimetric changes that are dependent on the polarity of solvents, the majority of conventional solvatochromic molecule based sensor systems inevitably display broad overlaps in their absorption and emission bands. As a result, colorimetric
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