1,3-Phenylene diisocyanate
1,3-Phenylene diisocyanate (CAS: 123-61-5), with the molecular formula C6H4(NCO)2 and a molecular weight of 160.13 g/mol, is a key difunctional isocyanate monomer. It serves as a crucial building block in polymer science and materials science for the synthesis of polyurethanes and other polymers. Its reactive isocyanate groups readily undergo addition reactions, enabling crosslinking and the formation of complex polymeric structures.
- Synonyms
- meta-Phenylene diisocyanatem-Phenylene diisocyanate
Polymer Synthesis
1,3-Phenylene diisocyanate is used as a monomer in the production of polyurethanes and polyureas. Its difunctional nature allows for the formation of linear or cross-linked polymer chains through reactions with diols, polyols, or diamines.
Materials Science
This compound is employed in materials science for developing advanced polymers with specific thermal and mechanical properties. It can be incorporated into resins, coatings, and adhesives to enhance their performance characteristics.
Crosslinking Agent
As a diisocyanate, it functions as an effective crosslinking agent in various polymer systems. This crosslinking improves the rigidity, strength, and chemical resistance of the final polymer material.
| Molecular weight | 160.13 |
|---|---|
| Linear formula | C6H4(NCO)2 |
| Assay | 95% |
| Boiling point | 121 °C/25 mmHg(lit.) |
| Storage temperature | 2-8°C |
| Melting point | 49-51 °C(lit.) |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42 |
| Safety statements (S) | 22-26-36/37 |
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 1,3-Phenylene diisocyanate used for?
+
1,3-Phenylene diisocyanate is primarily used as a monomer in polymer synthesis, particularly for polyurethanes and polyureas, and in materials science for creating polymers with specific properties. It also acts as a crosslinking agent.
What is the CAS number and formula for 1,3-Phenylene diisocyanate?
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The CAS number is 123-61-5 and the linear formula is C6H4(NCO)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Phenylene diisocyanate with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with 1,3-Phenylene diisocyanate?
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1,3-Phenylene diisocyanate is classified as dangerous. It is harmful if swallowed, in contact with skin, or if inhaled (H302 + H312 + H332). It causes skin irritation (H315), serious eye irritation (H319), and may cause allergy or asthma symptoms or breathing difficulties if inhaled (H334, H335). Appropriate personal protective equipment, including eye shields, gloves, and respiratory protection, is essential.
How is 1,3-Phenylene diisocyanate packed and shipped?
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1,3-Phenylene diisocyanate is packed and shipped in compliance with relevant regulations for hazardous materials. Specific details regarding export packaging can be provided upon request.
How can I request a sample or quote for 1,3-Phenylene diisocyanate?
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To request a sample or quote for 1,3-Phenylene diisocyanate, please contact our sales department through the website or via the provided contact details.
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