Pyrogallol Reagent Powder for Bulk Supply

Pyrogallic Acid (Pyrogallol) for Industrial and Laboratory Applications

Pyrogallic acid, commonly known as pyrogallol, is an aromatic trihydroxyphenol supplied as a crystalline chemical reagent for laboratory analysis, chemical synthesis, and selected industrial applications. With CAS No. 87-66-1, it is valued for its reducing properties and chemical reactivity, making purity, handling controls, and application-specific specifications important factors in B2B sourcing.

Product Overview

Pyrogallol is the common name for benzene-1,2,3-triol, a phenolic compound containing three hydroxyl groups attached to a benzene ring. It is used as a chemical reagent and intermediate in selected analytical and synthesis processes. Its reducing behavior and sensitivity to oxidation make it useful in specific technical applications, but also require careful storage and handling.

This product is intended for laboratory, research, chemical processing, and other suitable technical uses. Buyers should select the grade according to the target application, required impurity profile, analytical method, and local regulatory requirements. Pyrogallol should not be treated as interchangeable with gallic acid or propyl gallate, which are chemically distinct substances.

Specifications

Key Product Characteristics

• Defined chemical identity: Pyrogallol has an established CAS number, molecular formula, and molecular weight for specification-based purchasing.
• Reducing properties: Its phenolic structure supports use in selected analytical and chemical processes that require reducing activity.
• Technical versatility: It can serve as a reagent or intermediate in suitable laboratory and chemical synthesis workflows.
• Grade-specific quality assessment: Assay, impurity profile, appearance, and packaging integrity should be reviewed against the intended application.

Applications

Laboratory and Analytical Chemistry

Pyrogallol is used as a reagent in selected laboratory procedures and analytical chemistry workflows. Suitability depends on the method, grade, purity requirements, and controls needed to protect the accuracy and reproducibility of the analysis.

Chemical Synthesis

Pyrogallol can serve as a starting material or intermediate in selected chemical synthesis processes. Buyers should confirm impurity limits, reaction compatibility, and batch consistency where the material will be used in a defined production route.

Specialty Technical Applications

Its reducing behavior has supported use in certain technical applications, including selected oxygen-related analytical procedures. The exact grade and handling protocol should be chosen according to the method and applicable safety requirements rather than assuming that one specification fits every use.

Buyer-Decision Guide: Oxidation Sensitivity and Analytical Grade Selection

For pyrogallol, the key sourcing consideration is not assay alone: the compound can oxidize when exposed to air, light, moisture, or unsuitable storage conditions. Changes in color may indicate deterioration, although appearance by itself cannot establish assay or purity. Buyers should therefore evaluate both the analytical specification and the storage and packaging controls used throughout supply.

For routine analytical work, a documented reagent grade with a clear assay method and batch COA is often a practical starting point. For synthesis or process use, the buyer should also identify which impurities could affect reaction performance or downstream quality. If the process is sensitive to oxidation, define acceptable appearance and storage conditions in the purchasing specification and inspect the material before use.

Why Choose This Product

• Specification-led sourcing: Grade selection can be aligned with analytical, research, or chemical processing requirements.
• Batch documentation: COA and product specification documents support incoming inspection and supplier qualification.
• Packaging options: Bulk packaging can be selected to suit order size, storage arrangements, and handling procedures.
• Technical review: Buyers can evaluate assay, impurity limits, and storage instructions before approving material for use.

Quality Control

Quality control should follow the agreed product specification and intended application. Typical checks include identity, assay, relevant impurities, and moisture where specified. HPLC may be used for assay or impurity analysis when an appropriate validated method is available. Buyers should review the COA, analytical method, acceptance criteria, packaging condition, and storage guidance. Additional tests should be defined according to the application rather than assumed to be included in every grade.

Packaging and Storage

Common bulk packaging formats include sealed 1 kg or 5 kg inner bags and 25 kg outer drums, subject to the packaging configuration and chemical-handling requirements. Keep containers tightly closed and minimize exposure to air, light, and moisture. Store in a cool, dry, well-ventilated area, following the product specification and applicable safety documentation. Use suitable protective measures during handling and avoid contact with incompatible materials.

OEM and Private Label

For distributors and industrial buyers, packaging format, labeling, order quantities, and batch documentation can be arranged according to the supply program. Any customized assay, impurity limits, or packaging requirements should be agreed in writing before purchase and assessed for compatibility with the intended application and relevant regulations.

Safety and Handling Considerations

Pyrogallol is a chemical reagent that requires appropriate occupational and laboratory controls. Avoid inhalation of dust and contact with skin or eyes. Use suitable personal protective equipment, local ventilation, and handling procedures based on the current safety data sheet (SDS). Review applicable hazard classifications, spill response, waste disposal, and transport requirements before use. Do not infer safety from the material's use as a laboratory reagent.

Frequently Asked Questions

Are pyrogallic acid and pyrogallol the same substance?

Yes. Pyrogallic acid is a common name for pyrogallol, chemically identified as benzene-1,2,3-triol. It should not be confused with gallic acid or propyl gallate, which have different chemical structures and CAS numbers. Purchase orders and technical documents should use the exact product name and CAS No. 87-66-1.

Why can pyrogallol change color during storage?

Pyrogallol is susceptible to oxidation, and exposure to air, light, moisture, or unsuitable storage conditions can contribute to discoloration. A color change should trigger a review of the material's storage history and specification. Appearance alone cannot determine purity, so assay or other suitable analytical testing may be needed before use.

Which assay should buyers specify?

The required assay should match the intended application and the relevant analytical standard. Buyers should specify the minimum assay, test method, impurity limits, and required batch documentation rather than relying on a percentage alone. Where results from different suppliers are compared, ensure that the methods and calculation bases are comparable.

Conclusion

Pyrogallic acid, or pyrogallol, is a defined phenolic reagent used in analytical chemistry, chemical synthesis, and selected technical applications. Because it is susceptible to oxidation, procurement should consider assay and impurity data alongside packaging integrity, storage controls, and batch documentation. Contact us today to request samples, a COA, technical documents, and a wholesale quotation for pyrogallol.