Gallic acid monohydrate
Gallic acid monohydrate (CAS: 5995-86-8) is a hydrated crystalline organic acid with the linear formula (HO)₃C₆H₂CO₂H · H₂O and a molecular weight of 188.13 g/mol. This compound, also known as 3,4,5-trihydroxybenzoic acid monohydrate, is widely recognised for its antioxidant and astringent properties. It finds extensive use as a chemical intermediate in the synthesis of pharmaceuticals, dyes, and inks, and as a laboratory reagent.
- IUPAC
- 3,4,5-Trihydroxybenzoic acid
- Synonyms
- 3,4,5-Trihydroxybenzoic acid monohydrate
Chemical Synthesis Intermediate
Gallic acid monohydrate serves as a crucial building block in organic synthesis. It is employed in the production of pharmaceuticals, particularly in the development of antioxidants and antiparasitic agents. Its structure also lends itself to the creation of specialised dyes and inks.
Laboratory Reagent
In analytical and research laboratories, gallic acid monohydrate is used as a reagent for various chemical analyses. Its known properties make it valuable in testing and experimental procedures within academic and industrial research settings.
Antioxidant Applications
Due to its phenolic structure, gallic acid monohydrate exhibits significant antioxidant activity. This property is leveraged in certain industrial applications where protection against oxidation is required, though specific grades for food or pharmaceutical use are not specified herein.
| Molecular weight | 188.13 |
|---|---|
| Linear formula | (HO)3C6H2CO2H · H2O |
| Assay | ≥98.0% (HPLC) |
| Grade | ACS reagent |
| Loss on drying | 9-10% loss on drying |
| Impurities tested | 7-12% water (Karl Fischer) |
| Melting point | 252 °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 |
|---|---|
| Flash point | 250 °C / 482 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
| Anion traces | chloride (Cl-): ≤200 mg/kgsulfate (SO42-): ≤100 mg/kg |
| Ignition residue | ≤0.05% |
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 Gallic acid monohydrate used for?
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Gallic acid monohydrate is primarily used as an intermediate in the synthesis of pharmaceuticals, dyes, and inks. It also functions as a laboratory reagent and exhibits antioxidant properties.
What is the CAS number and formula for Gallic acid monohydrate?
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The CAS number for Gallic acid monohydrate is 5995-86-8. Its linear formula is (HO)₃C₆H₂CO₂H · H₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Gallic acid monohydrate at ACS reagent grade, with an assay of ≥98.0% (HPLC). It contains 7-12% water (Karl Fischer) and exhibits 9-10% loss on drying.
How should Gallic acid monohydrate be handled?
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Gallic acid monohydrate is a warning substance that may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes.
Is Gallic acid monohydrate a controlled substance?
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The provided data does not indicate that Gallic acid monohydrate is a controlled substance.
How is Gallic acid monohydrate packed and shipped?
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Tech Serve Solutions packs and exports fine chemicals like Gallic acid monohydrate according to industry best practices to ensure product integrity and compliance with international shipping regulations.
How can I request a quote or sample for Gallic acid monohydrate?
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To request a quote or sample for Gallic acid monohydrate, please contact our sales team through the TSS website or via direct enquiry, providing your specific requirements.
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