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Gallic Acid is an aromatic organic compound classified as a trihydroxybenzoic acid, with the molecular formula C7H6O5 and a molecular weight of approximately 170.12 g/mol. Also known as 3,4,5-trihydroxybenzoic acid, it contains three phenolic hydroxyl groups and one carboxylic acid group attached to a benzene ring. These functional groups influence its chemical reactivity and make it relevant to organic chemistry, analytical testing, and research involving phenolic compounds. Gallic Acid is used in laboratory investigations involving colour-forming reactions, complex formation, spectroscopy, and antioxidant-related chemical studies. It is also useful in developing and evaluating analytical methods for phenolic substances. Lab Wale offers Gallic Acid in a 500 g pack for laboratory applications, subject to the stated product specifications. Select the appropriate reagent for the intended procedure and follow established laboratory safety practices.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | White to off-white crystalline powder |
| Assay | 99% |
| Chemical Name | Gallic Acid |
| Alternate Names | 3,4,5-Trihydroxybenzoic Acid, 3,4,5-Trihydroxybenzoic Acid |
| Molecular Formula | C7H6O5 |
| Empirical Formula | C7H6O5 |
| CAS Number | 149-91-7 |
| Molecular Weight | 170.12 g/mol |
| Grade | LR Laboratory Reagent |
Key Features of Gallic Acid
- Aromatic organic acid containing three phenolic hydroxyl groups and one carboxylic acid group.
- Has the molecular formula C7H6O5 and a molecular weight of approximately 170.12 g/mol.
- Contains multiple functional groups that influence hydrogen bonding, solubility, and chemical reactivity.
- Participates in selected colour-forming reactions and complexation procedures used in analytical chemistry.
- Relevant to laboratory research involving phenolic compounds, spectroscopy, and antioxidant-related chemical behaviour.
Laboratory Applications of Gallic Acid
- Organic chemistry practicals exploring aromatic compounds, phenolic hydroxyl groups, and carboxylic acid functionality.
- Analytical chemistry experiments involving phenolic compound detection and suitable colour-forming reactions.
- Preparation of reference solutions for developing or evaluating analytical methods for gallic acid and related phenolic compounds, where the stated specifications are appropriate.
- University and research-centre investigations involving spectroscopy, chemical reactivity, and the characterisation of phenolic substances.
- Research procedures evaluating antioxidant-related chemical behaviour and total phenolic content using validated analytical methods.
Why Choose Lab Wale to Buy Gallic Acid
Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by schools, colleges, universities, research centres, and laboratory professionals. When purchasing Gallic Acid, review the chemical identity, stated assay, LR Laboratory Reagent grade, and 500 g pack size to determine whether the product meets your requirements. Clear product specifications help support purchasing decisions and experiment planning. Consult relevant technical and safety documentation before use, particularly for quantitative analysis and specialised research applications.
Frequently Asked Questions About Gallic Acid
What is Gallic Acid used for in laboratories?
Gallic Acid is used in organic chemistry experiments, phenolic compound analysis, selected colour-forming reactions, and complexation studies. It is also relevant to spectroscopy, analytical method development, and investigations of antioxidant-related chemical behaviour. The required grade and procedure depend on the intended analytical purpose.
What are the molecular formula and molecular weight of Gallic Acid?
Gallic Acid has the molecular formula C7H6O5 and a molecular weight of approximately 170.12 g/mol. Its empirical formula is also C7H6O5 because the subscripts cannot be reduced to a smaller whole-number ratio.
What is the CAS number of Gallic Acid?
The CAS Registry Number for Gallic Acid is 149-91-7. This identifier distinguishes the acid from related substances, including gallate salts and gallic acid derivatives. Confirm the chemical identity when selecting a reagent for laboratory experiments, inventory management, or analytical research.
Can Gallic Acid be used in analytical chemistry research?
Yes, Gallic Acid is relevant to phenolic compound analysis, spectroscopy, colourimetric procedures, and selected research applications. For quantitative work, suitability depends on the analytical method, validation requirements, and reagent specifications. LR Laboratory Reagent grade should not automatically be assumed suitable for every specialised analytical procedure.
How should Gallic Acid be stored and handled?
Store Gallic Acid in a tightly closed container in a cool, dry location, protected from moisture and direct light. Avoid inhaling dust and prevent eye and skin contact. Use appropriate protective equipment and ventilation, and follow the current Safety Data Sheet for chemical-specific precautions and disposal guidance.
Storage Conditions for Gallic Acid
Store Gallic Acid in a tightly closed, compatible container in a cool, dry location protected from direct light and moisture. Keep it away from incompatible substances, including strong oxidizing agents. Minimise unnecessary exposure to air during handling and follow the supplier’s storage recommendations and institutional chemical storage procedures.
Precautions for Handling Gallic Acid
Review the current Safety Data Sheet before handling Gallic Acid. Wear suitable laboratory gloves, safety glasses, and protective clothing, and avoid generating or inhaling dust. Prevent unnecessary contact with the skin and eyes, and use appropriate ventilation during weighing and transfer. Follow established spill response, hygiene, and chemical waste disposal procedures in accordance with institutional requirements.


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