Indium(III) phosphide
Indium(III) phosphide (InP), CAS 22398-80-7, with a molecular weight of 145.79 g/mol, is a compound utilised in advanced material science and chemical synthesis. It is known for its applications in semiconductor technology and as a precursor in the development of phosphide-based materials. Supplied by TSS, this high-purity compound is crucial for research and industrial processes requiring precise material properties.

Semiconductor Material
Indium phosphide is a critical semiconductor material used in high-speed electronic devices and optoelectronic applications, such as lasers and photodetectors.
Catalysis
In its various forms, indium phosphide can serve as a component in catalytic systems, particularly in chemical synthesis and industrial processes requiring specific catalytic activity.
Ceramics and Advanced Materials
It is employed in the development of specialised ceramics and advanced materials due to its unique electronic and structural properties, contributing to innovations in materials science.
Chemical Synthesis Precursor
As a source of indium and phosphorus, InP is used as a precursor in the synthesis of other indium-containing compounds and phosphide-based materials for research and development.
| Molecular weight | 145.79 |
|---|---|
| Linear formula | InP |
| Assay | 99.998% trace metals basis |
| Form | pieces |
| Particle size | 3-20 mesh |

Hazard statements
- H350May cause cancer
- H361F
- H372Causes damage to organs through prolonged exposure
Precautionary statements
- P201Obtain special instructions before use
- P281Use personal protective equipment as required
- P308IF exposed or concerned
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | T |
| Safety statements (S) | 53-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Target Organs | Lungs |
|---|
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 Indium(III) phosphide used for?
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Indium(III) phosphide (InP) is primarily used in semiconductor applications, optoelectronics, catalysis, and as a precursor in chemical synthesis for advanced materials.
What is the CAS number and formula for Indium(III) phosphide?
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The CAS number for Indium(III) phosphide is 22398-80-7, and its chemical formula is InP.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Indium(III) phosphide with an assay of 99.998% on a trace metals basis. We do not represent this product as USP, BP, or EP grade.
What are the main hazards associated with Indium(III) phosphide?
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Indium(III) phosphide is a Danger hazard. It may cause cancer (H350) and is suspected of damaging fertility or the unborn child (H361f). It also causes damage to organs (lungs) through prolonged or repeated exposure (H372).
How is Indium(III) phosphide shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Indium(III) phosphide. Specific shipping and export details can be provided upon request, adhering to all relevant regulations.
How can I request a quote or sample?
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To request a quote or a sample of Indium(III) phosphide, please contact our sales team through the website or by phone. We will be pleased to assist you with your specific requirements.
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