Phenoxyacetic anhydride
Phenoxyacetic anhydride (CAS: 14316-61-1) is a reactive organic compound with the linear formula (C<sub>6</sub>H<sub>5</sub>OCH<sub>2</sub>CO)<sub>2</sub>O and a molecular weight of 286.28 g/mol. It functions as a key building block and carbonyl compound in organic synthesis. Its anhydride structure makes it useful for introducing the phenoxyacetyl group in various chemical reactions. Phenoxyacetic anhydride is supplied by TSS for research and development purposes.

Organic Synthesis Reagent
As a carboxylic acid anhydride, phenoxyacetic anhydride serves as an effective acylating agent in organic synthesis. It is used to introduce the phenoxyacetyl moiety into molecules, facilitating the creation of more complex structures.
Intermediate for Fine Chemicals
This compound is valuable as an intermediate in the synthesis of fine chemicals and potentially pharmaceutical precursors. Its reactivity allows for controlled derivatization in multi-step synthetic pathways.
Building Block in Chemical Research
Phenoxyacetic anhydride is utilised as a versatile building block in academic and industrial research laboratories. It enables chemists to explore novel chemical transformations and develop new compounds.
| Molecular weight | 286.28 |
|---|---|
| Linear formula | (C6H5OCH2CO)2O |
| Assay | ≥97.0% (T) |
| Melting point | 70-74 °C |

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 Phenoxyacetic anhydride used for?
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Phenoxyacetic anhydride is used as a reagent in organic synthesis, primarily as a building block for introducing the phenoxyacetyl group into various molecules and as an intermediate in the synthesis of fine chemicals.
What is the CAS number and formula for Phenoxyacetic anhydride?
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The CAS number for Phenoxyacetic anhydride is 14316-61-1, and its linear formula is (C<sub>6</sub>H<sub>5</sub>OCH<sub>2</sub>CO)<sub>2</sub>O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenoxyacetic anhydride with an assay of ≥97.0% (T). TSS does not represent this product as USP, BP, or EP grade.
How should Phenoxyacetic anhydride be handled safely?
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Phenoxyacetic anhydride is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with a dust mask type N95, eyeshields, and gloves in a well-ventilated area. Avoid breathing dust.
Is Phenoxyacetic anhydride exported by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Phenoxyacetic anhydride.
How can I request a sample or quote for Phenoxyacetic anhydride?
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To request a sample or quote for Phenoxyacetic anhydride, please contact the TSS sales team through our website or by phone.
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