Heptadecafluorononanoic acid
Heptadecafluorononanoic acid (CAS 375-95-1) is a highly fluorinated carboxylic acid with the chemical formula CF3(CF2)7COOH and a molecular weight of 464.08 g/mol. It is a key intermediate in fluorous synthesis and is utilised in chemical synthesis for creating specialised fluorinated compounds. Its unique properties make it valuable in applications requiring extreme chemical inertness and specific surface characteristics.
- IUPAC
- Perfluorononanoic acid

Fluorous Synthesis
This compound serves as a crucial building block in fluorous synthesis, enabling the incorporation of fluorinated segments into complex molecules. Its high fluorine content facilitates separation and purification using fluorous solid-phase extraction techniques.
Specialty Chemical Intermediate
Heptadecafluorononanoic acid acts as an intermediate in the synthesis of various specialty chemicals. It is employed in the development of materials with unique thermal and chemical resistance properties.
Rf-Tagged Building Blocks
It is used in the preparation of Rf-tagged (fluorous-tagged) building blocks, which are essential reagents in modern organic synthesis for streamlining reaction workups and purification.
| Molecular weight | 464.08 |
|---|---|
| Linear formula | CF3(CF2)7COOH |
| Assay | ≥95.0% (GC) |
| Grade | purum |
| Melting point | 59-62 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 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 Heptadecafluorononanoic acid used for?
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Heptadecafluorononanoic acid is primarily used in fluorous synthesis and as a specialty chemical intermediate for creating fluorinated compounds and Rf-tagged building blocks.
What is the CAS number and formula for Heptadecafluorononanoic acid?
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The CAS number is 375-95-1 and the linear formula is CF3(CF2)7COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Heptadecafluorononanoic acid with a purity of ≥95.0% (GC), designated as purum grade. We do not represent this product as USP, BP, or EP grade.
How should Heptadecafluorononanoic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It is classified as a Warning with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation).
Is Heptadecafluorononanoic acid a controlled substance?
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The provided data does not indicate that Heptadecafluorononanoic acid is a controlled substance.
How is Heptadecafluorononanoic acid packed and exported?
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As a specialist global supplier, Tech Serve Solutions ensures appropriate packaging and export procedures for Heptadecafluorononanoic acid, adhering to all relevant regulations.
How can I request a sample or quote for Heptadecafluorononanoic acid?
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Please contact our sales team through the website or by phone to request a sample or a quotation for Heptadecafluorononanoic acid.
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