5-(Octadecyloxy)isophthalic acid
5-(Octadecyloxy)isophthalic acid (CAS: 143294-86-4) is an organic compound with the linear formula CH3(CH2)17OC6H3-1,3-(CO2H)2 and a molecular weight of 434.61 g/mol. This molecule features a long alkyl chain attached to an isophthalic acid core. It functions primarily as a monomer in polymer science and materials science, enabling the synthesis of specialized polymers with unique properties derived from its structure.
- Synonyms
- 3,5-Bis(octadecyloxy)benzoic acid

Monomer for Polymer Synthesis
Utilised as a building block in the development of novel polymers. The long octadecyloxy chain can impart specific solubility, thermal, or mechanical properties to the resulting polymeric materials.
Materials Science Research
Investigated for its potential in creating advanced materials. Its structure suggests applications in areas requiring amphiphilic characteristics or specific surface interactions.
Organic Synthesis Intermediate
Serves as a precursor or intermediate in complex organic synthesis pathways, particularly where a functionalized aromatic ring with a long lipophilic tail is required.
| Molecular weight | 434.61 |
|---|---|
| Linear formula | CH3(CH2)17OC6H3-1,3-(CO2H)2 |
| Assay | 98% |
| Melting point | 157-161 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 5-(Octadecyloxy)isophthalic acid used for?
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5-(Octadecyloxy)isophthalic acid is primarily used as a monomer in polymer science and materials science for the synthesis of specialized polymers. It can also serve as an intermediate in organic synthesis.
What are the CAS number and chemical formula for 5-(Octadecyloxy)isophthalic acid?
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The CAS number is 143294-86-4, and the linear chemical formula is CH3(CH2)17OC6H3-1,3-(CO2H)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-(Octadecyloxy)isophthalic acid with an assay of 98%. We do not represent this product as USP, BP, or EP grade, and it is intended for research and laboratory use.
How should 5-(Octadecyloxy)isophthalic acid be handled safely?
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When handling 5-(Octadecyloxy)isophthalic acid, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. Refer to the Safety Data Sheet for comprehensive handling information and hazard details, noting its WGK Germany classification of 3.
Is 5-(Octadecyloxy)isophthalic acid a controlled substance?
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Based on the provided data, there is no indication that 5-(Octadecyloxy)isophthalic acid is a controlled substance.
How is 5-(Octadecyloxy)isophthalic acid packed and shipped?
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Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging for safe transport. Please contact us for specific details regarding packaging options and international shipping.
How can I request a quote or sample for 5-(Octadecyloxy)isophthalic acid?
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To request a quote or a sample of 5-(Octadecyloxy)isophthalic acid, please use the contact form on our website or reach out to our sales department directly.
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