1,2,3-Benzenetricarboxylic acid hydrate
1,2,3-Benzenetricarboxylic acid hydrate (CAS: 732304-21-1) is a versatile organic compound with the empirical formula C9H6O6 · xH2O. It features a benzene ring substituted with three carboxylic acid groups. This compound serves as a valuable building block in organic synthesis, finding application in the preparation of various chemical intermediates and materials. Its trifunctional nature allows for diverse chemical transformations, making it a useful reagent in research and development.
- IUPAC
- Hemimellitic acid
- Synonyms
- 732304-21-1C9H6O6 · xH2OHemimellitic acid

Organic Synthesis Intermediate
1,2,3-Benzenetricarboxylic acid hydrate acts as a key intermediate in the synthesis of more complex organic molecules. Its three carboxylic acid functionalities enable a range of reactions for building complex structures.
Material Science Precursor
This compound can be utilised as a precursor in the development of novel materials. Its structure lends itself to polymerisation or incorporation into advanced material frameworks.
Research and Development
As a readily available organic building block, it is frequently employed in academic and industrial research laboratories for exploring new synthetic pathways and chemical entities.
| Molecular weight | 210.14 (anhydrous basis) |
|---|---|
| Empirical formula | C9H6O6 · xH2O |
| Assay | 98% |
| Melting point | 190-192 °C (dec.)(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 |
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 1,2,3-Benzenetricarboxylic acid hydrate used for?
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1,2,3-Benzenetricarboxylic acid hydrate is primarily used as a building block in organic synthesis and as a precursor in material science research and development.
What is the CAS number and formula for 1,2,3-Benzenetricarboxylic acid hydrate?
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The CAS number is 732304-21-1 and the empirical formula is C9H6O6 · xH2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2,3-Benzenetricarboxylic acid hydrate with an assay of 98%. We do not represent this product as USP, BP, EP, or pharmaceutical grade.
How should 1,2,3-Benzenetricarboxylic acid hydrate be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. In case of eye contact, rinse cautiously with water for several minutes.
Is 1,2,3-Benzenetricarboxylic acid hydrate packed and shipped internationally?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, and we can arrange for the packing and shipment of 1,2,3-Benzenetricarboxylic acid hydrate worldwide.
How can I request a quote or sample for 1,2,3-Benzenetricarboxylic acid hydrate?
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Please contact our sales department via the website or by phone to request a quote or arrange for a sample of 1,2,3-Benzenetricarboxylic acid hydrate.
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