Tetraethylammonium (meta)periodate
Tetraethylammonium (meta)periodate (CAS: 5492-69-3) is a chemical compound with the molecular formula (C2H5)4N(IO4) and a molar mass of 321.15 g/mol. This hypervalent iodine compound serves as a versatile oxidizing agent and reactant in various synthetic organic chemistry applications, notably in intramolecular cycloaddition reactions. It is typically supplied as a moistened technical grade material, containing approximately 10% water for stability.
- IUPAC
- N,N,N-Triethylethanaminium salt with periodic acid

Reactant in Organic Synthesis
Tetraethylammonium (meta)periodate is employed as a reactant in specific organic transformations, particularly for intramolecular cycloaddition reactions. Its role as a hypervalent iodine reagent facilitates these synthetic pathways.
Oxidizing Agent
As a member of the hypervalent iodine family, this compound functions as an effective oxidizing agent. It is utilised in various chemical synthesis processes requiring controlled oxidation.
Chemical Reagent
This compound is catalogued as a synthetic reagent, supporting the development and execution of complex chemical syntheses in research and industrial laboratories.
| Molecular weight | 321.15 |
|---|---|
| Linear formula | (C2H5)4N(IO4) |
| Assay | ≥90% (calc. based on dry substance, RT) |
| Grade | technical |
| Contains / stabiliser | ~10% water as stabilizer |
| Application | Reactant for intramolecular cycloaddition reactions1 |
| Melting point | ~170 °C (dec.) |

Hazard statements
- H228Flammable solid
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality | moistened with water |
|---|
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 Tetraethylammonium (meta)periodate used for?
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Tetraethylammonium (meta)periodate is used as a reactant in intramolecular cycloaddition reactions and as a general oxidizing agent in chemical synthesis.
What are the CAS number and formula for Tetraethylammonium (meta)periodate?
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The CAS number is 5492-69-3, and the linear formula is (C2H5)4N(IO4).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetraethylammonium (meta)periodate in technical grade, assaying at a minimum of 90% calculated based on the dry substance. It is supplied moistened with approximately 10% water as a stabilizer. TSS does not represent this product as USP, BP, or EP grade.
How should Tetraethylammonium (meta)periodate be handled?
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Tetraethylammonium (meta)periodate is a flammable solid (H228). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a P1 or N95 respirator filter. Keep away from heat, sparks, and open flames. Store in a well-ventilated area.
How is Tetraethylammonium (meta)periodate packed and exported?
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This product is packed and exported according to relevant transport regulations for hazardous materials, identified as UN 1325, Hazard Class 4.1, Packing Group II. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for Tetraethylammonium (meta)periodate?
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Please contact the TSS sales team via our website or by phone to request a sample or a quotation for Tetraethylammonium (meta)periodate.
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