12-Mercaptododecylphosphonic acid
12-Mercaptododecylphosphonic acid (CAS 159239-33-5, C12H27O3PS) is an organophosphonic acid essential for advanced materials science. With a molecular weight of 282.38 g/mol, it functions by forming self-assembled monolayers (SAMs). Its unique structure, featuring both a mercapto group and a phosphonic acid head, enables it to bind effectively to gold surfaces, making it valuable in nanoelectronics, solid-state lighting, and energy generation applications.
- IUPAC
- P-(12-Mercaptododecyl)phosphonic acid

Nanoelectronics
Utilised for creating self-assembled monolayers (SAMs) on surfaces, crucial for developing advanced nanoelectronic devices and components.
Surface Modification
Forms robust SAMs on gold surfaces, enabling precise control over surface properties for various technological applications.
Nanocomposites
Serves as a building block in the creation of nanocomposite materials, enhancing their performance and functionality.
Energy Generation
Applied in the field of energy generation, potentially contributing to more efficient and novel energy conversion systems.
Solid-State Lighting
Finds application in solid-state lighting technologies, contributing to the development of advanced illumination solutions.
| Molecular weight | 282.38 |
|---|---|
| Empirical formula | C12H27O3PS |
| Assay | 95% |
| Storage temperature | 2-8°C |
| Application | Organophosphonic acid self-assembled monolayers (SAMs) for nanoelectronics; solid-state lighting; energy generation and nanocomposites. A mercaptoalkylphosphonate monolayer used to bind gold nanoparticles. |
| Melting point | 92-96 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 12-Mercaptododecylphosphonic acid used for?
+
12-Mercaptododecylphosphonic acid is primarily used for creating self-assembled monolayers (SAMs) in nanoelectronics, solid-state lighting, energy generation, and nanocomposites. It also serves to bind gold nanoparticles.
What is the CAS number and molecular formula for 12-Mercaptododecylphosphonic acid?
+
The CAS number for 12-Mercaptododecylphosphonic acid is 159239-33-5, and its molecular formula is C12H27O3PS.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 12-Mercaptododecylphosphonic acid with an assay of 95%. This product is intended for research and development purposes and is not represented as USP, BP, EP, or any other pharmacopoeial grade.
How should 12-Mercaptododecylphosphonic acid be handled?
+
This compound is a Warning substance causing skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment, ensure good ventilation, and follow proper laboratory safety procedures when handling.
How is 12-Mercaptododecylphosphonic acid stored and shipped?
+
12-Mercaptododecylphosphonic acid should be stored at 2-8°C. Tech Serve Solutions exports fine chemicals globally, ensuring compliance with all relevant shipping regulations.
How can I request a quote or sample?
+
To request a quote or sample of 12-Mercaptododecylphosphonic acid, please contact our sales team through the website or by phone.
▶ Related products

(11-Mercaptoundecyl)-N,N,N-trimethylammonium bromide
Micro / NanoElectronics

(11-Mercaptoundecyl)hexa(ethylene glycol)
C23H48O7S
Micro / NanoElectronics
(12-Phosphonododecyl)phosphonic acid
C12H28O6P2
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,7-Tridecafluoroheptyl)oxirane
C9H5F13O
Micro / NanoElectronics
(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Heptadecafluorononyl)oxirane
C11H5F17O
Micro / NanoElectronics
(3-Chloropropyl)dimethoxymethylsilane
Cl(CH2)3Si(OCH3)2CH3
Micro / NanoElectronics
(3-Chloropropyl)trimethoxysilane
Cl(CH2)3Si(OCH3)3
Micro / NanoElectronics
(4-Bromophenyl)diphenylsulfonium triflate
C19H14BrF3O3S2
Micro / NanoElectronics▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis