Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

715166

Sigma-Aldrich

Octadecylphosphonic acid

97%

Synonym(s):

n-Octadecylphosphonic acid, ODPA

Sign Into View Organizational & Contract Pricing

Select a Size

1 G
$189.05

$189.05

List Price$199.00
Web-Only Promotion

Available to ship onApril 22, 2025Details

Request a Bulk Order
All Photos(1)

Select a Size

Change View
1 G
$189.05

About This Item

Empirical Formula (Hill Notation):
C18H39O3P
CAS Number:
4724-47-4
Molecular Weight:
334.47
MDL number:
MFCD00015838
UNSPSC Code:
12352300
PubChem Substance ID:
329762947
NACRES:
NA.23

$189.05

List Price$199.00
Web-Only Promotion

Available to ship onApril 22, 2025Details

Request a Bulk Order

assay

97%

form

crystals

mp

95-100 °C

SMILES string

CCCCCCCCCCCCCCCCCCP(O)(O)=O

InChI

1S/C18H39O3P/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-22(19,20)21/h2-18H2,1H3,(H2,19,20,21)

InChI key

FTMKAMVLFVRZQX-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Octadecylphosphonic acid (OPA) is used as a self-assembled monolayer that forms a surfactant which strongly bonds with the surface atoms of different metal oxides. It provides hydrophobic properties and covers a higher surface area than the predominantly used silanes. [1][2]

Application

Anti-corrosive coatings on cupronickel (CuNi) can be formed by fabricating a protective film of OPA by dip coating method.[3] OPA may be used in the preparation of indium oxide(In2O3) nanowire transistor than can find potential application in the growth of fast switching and low noise nano-electronic devices.[4] It may be used for self-cleaning and oil/water separation based applications as it forms a superhydrophobic layer on the copper mesh.[5]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000300104
0000285542
0000274811
0000173839
0000207297

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Resistance of Superhydrophobic Surface-Functionalized TiO2 Nanotubes to Corrosion and Intense Cavitation.
Hua W.
Nanomaterials, 8(10), 783-783 (2018)
n-Octadecylphosphonic acid grafted mesoporous magnetic nanoparticle: Preparation, characterization, and application in magnetic solid-phase extraction.
Ding J, et al.
Journal of Chromatography A, 1217(47), 7351-7358 (2010)
Fast formation of superhydrophobic octadecylphosphonic acid (ODPA) coating for self-cleaning and oil/water separation.
Dai C, et al.
Soft Matter, 10(40), 8116-8121 (2014)
Getachew Tizazu et al.
Langmuir : the ACS journal of surfaces and colloids, 25(18), 10746-10753 (2009-07-18)
Electron-hole pair formation at titania surfaces leads to the formation of reactive species that degrade organic materials. Here, we describe the degradation of self-assembled monolayers of alkylphosphonic acids on the native oxide of titanium following exposure to UV light. The
Fabrication of controllable and stable In2O3 nanowire transistors using an octadecylphosphonic acid self-assembled monolayer.
Lim T, et al.
Nanotechnology, 26(14), 145203-145203 (2015)
View All Related Papers

Articles

Organic Transistors for Biomedical Applications

Thin, lightweight, and flexible electronic devices meet widespread demand for scalable, portable, and robust technology.

Photopatterning Self-Assembled Monolayers

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service