Diheptyl phthalate
Diheptyl phthalate (CAS: 3648-21-3), with the molecular formula C22H34O4 and a molecular weight of 362.50 g/mol, is a chemical compound utilised in various scientific and industrial applications. It is recognised for its properties as a plasticizer and polymer additive. Tech Serve Solutions supplies this chemical for research and development purposes, adhering to strict quality standards.
- Synonyms
- 2-[CO2(CH2)6CH3]2Phthalic acid, diheptyl ester

Plasticizer
Diheptyl phthalate serves as a plasticizer, enhancing the flexibility and workability of polymers. Its application in materials science contributes to the development of flexible plastics and coatings.
Polymer Additive
As a polymer additive, this phthalate ester can modify the physical properties of polymeric materials. It is relevant in polymer science for research into material enhancement and formulation.
Research and Development
This compound is valuable in cell biology and nutrition research, particularly for studies involving phytochemicals and cellular processes. It supports scientific investigation in various laboratory settings.
| Molecular weight | 362.50 |
|---|---|
| Linear formula | C6H4-1,2-[CO2(CH2)6CH3]2 |
| Assay | 97% |
| Boiling point | 195 °C/0.04 mmHg(lit.) |
| Density | 0.988 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.485(lit.) |


Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H361Suspected of damaging fertility or the unborn child
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P281Use personal protective equipment as required
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 63-36/37/38 |
| Safety statements (S) | 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 Diheptyl phthalate used for?
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Diheptyl phthalate is primarily used as a plasticizer and polymer additive in materials science and polymer research. It also finds application in cell biology and nutrition research.
What are the CAS number and molecular formula for Diheptyl phthalate?
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The CAS number for Diheptyl phthalate is 3648-21-3, and its molecular formula is C22H34O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diheptyl phthalate with an assay of 97%. This product is intended for technical and research purposes and is not represented as USP, BP, or EP grade.
How should Diheptyl phthalate be handled safely?
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Diheptyl phthalate is classified with a GHS07 and GHS08 symbol, indicating potential hazards including skin irritation (H315), eye irritation (H319), respiratory irritation (H335), and suspected reproductive toxicity (H361). Appropriate personal protective equipment, such as eyeshields, gloves, and suitable respiratory protection, should be used. Handle in a well-ventilated area and follow recommended precautionary statements (P261, P281, P305 + P351 + P338).
How is Diheptyl phthalate shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Diheptyl phthalate can be shipped and exported internationally according to regulatory requirements.
How can I request a sample or quote for Diheptyl phthalate?
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To request a sample or obtain a quote for Diheptyl phthalate, please contact our sales team through the official Tech Serve Solutions channels.
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