1,4-Diisocyanatobutane
1,4-Diisocyanatobutane (CAS: 4538-37-8), with the linear formula OCN(CH2)4NCO, is an organic compound featuring two isocyanate functional groups. This diisocyanate serves as a versatile building block in chemical synthesis, particularly for the production of polymers and other complex organic molecules. Its reactivity stems from the electrophilic nature of the isocyanate groups, enabling reactions with nucleophiles such as alcohols and amines.
- IUPAC
- Tetramethylene diisocyanate
- Synonyms
- OCN(CH2)4NCOTetramethylene diisocyanate
Polymer Synthesis
1,4-Diisocyanatobutane is a key monomer in the synthesis of polyurethanes and polyureas. Its difunctional nature allows for chain extension and cross-linking, leading to polymers with diverse material properties.
Organic Synthesis Intermediate
The compound acts as a valuable intermediate in the preparation of various organic molecules. It can be reacted with diamines to form polyamides or with diols to form polyesters, expanding its synthetic utility.
Cross-linking Agent
Its diisocyanate structure makes it suitable as a cross-linking agent for resins and coatings, enhancing mechanical strength, durability, and chemical resistance of the final product.
| Molecular weight | 140.14 |
|---|---|
| Linear formula | OCN(CH2)4NCO |
| Assay | ≥95% (GC) |
| Boiling point | 102-104 °C/14 mmHg(lit.) |
| Density | 1.105 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.453 |
| Storage temperature | 2-8°C |
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
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 1,4-Diisocyanatobutane used for?
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1,4-Diisocyanatobutane is primarily used as a building block in organic synthesis and for the production of polymers, such as polyurethanes and polyureas, as well as a cross-linking agent.
What are the CAS number and formula for 1,4-Diisocyanatobutane?
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The CAS number for 1,4-Diisocyanatobutane is 4538-37-8, and its linear formula is OCN(CH2)4NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,4-Diisocyanatobutane with an assay of ≥95% (GC). We do not represent this product as USP, BP, or EP grade.
How should 1,4-Diisocyanatobutane be handled safely?
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1,4-Diisocyanatobutane is an irritant. Handle with adequate ventilation, wear appropriate personal protective equipment (gloves, eye protection), and avoid breathing vapours. Refer to the Safety Data Sheet for detailed handling instructions.
How is 1,4-Diisocyanatobutane packed and shipped?
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1,4-Diisocyanatobutane is packed and shipped according to relevant regulations for chemical substances. Storage is recommended at 2-8°C.
How can I request a quote or sample for 1,4-Diisocyanatobutane?
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To request a quote or sample of 1,4-Diisocyanatobutane, please contact our sales team through the website or by phone.
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