2,5-Dimethoxyphenethyl isocyanate
2,5-Dimethoxyphenethyl isocyanate (CAS: 480439-35-8) is a valuable organic building block with the molecular formula (CH3O)2C6H3CH2CH2NCO and a molecular weight of 207.23 g/mol. This compound features a reactive isocyanate group, making it suitable for various chemical synthesis applications, particularly in the development of novel organic molecules and research chemicals.
- Synonyms
- (CH3O)2C6H3CH2CH2NCO

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its isocyanate functionality allows for reactions with nucleophiles to form amides, ureas, and other derivatives.
Research and Development
Employed in academic and industrial research laboratories for exploring new chemical pathways and developing novel compounds. It serves as a versatile reagent for constructing diverse molecular architectures.
Building Block for Specialty Chemicals
Functions as a foundational building block for creating specialty chemicals and fine chemical intermediates. The dimethoxy phenethyl moiety offers a specific structural element for targeted synthesis.
| Molecular weight | 207.23 |
|---|---|
| Linear formula | (CH3O)2C6H3CH2CH2NCO |
| Assay | 97% |
| Boiling point | 301-302 °C(lit.) |
| Density | 1.153 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.5300(lit.) |


Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- 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 | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 2206 6.1/PG 3 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42 |
| Safety statements (S) | 23-26-36 |
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 2,5-Dimethoxyphenethyl isocyanate used for?
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2,5-Dimethoxyphenethyl isocyanate is primarily used as a building block and intermediate in organic synthesis and chemical research and development.
What is the CAS number and formula for 2,5-Dimethoxyphenethyl isocyanate?
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The CAS number is 480439-35-8, and the linear formula is (CH3O)2C6H3CH2CH2NCO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,5-Dimethoxyphenethyl isocyanate with an assay of 97%. This is a technical or research grade product, and TSS does not represent it as USP, BP, or EP grade.
What are the main hazards associated with 2,5-Dimethoxyphenethyl isocyanate?
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This compound is classified with Danger. Hazards include being harmful if swallowed, in contact with skin, or if inhaled (H302, H312, H332). It also causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335) and allergy or asthma symptoms or breathing difficulties if inhaled (H334).
How is 2,5-Dimethoxyphenethyl isocyanate packed, shipped, and exported?
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As a global supplier and exporter of fine chemicals, TSS ensures appropriate packaging for UN 2206, Class 6.1, Packing Group III shipments, adhering to all relevant shipping and export regulations.
How can I request a sample or a quote for 2,5-Dimethoxyphenethyl isocyanate?
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Please contact our sales team directly through the website or by phone to request a sample or a quotation for 2,5-Dimethoxyphenethyl isocyanate.
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