Methylene Blue Powder – USP/Pharma Grade, Third Party Tested – 1 Gram

Technical Specifications

Supplied as a finely ground blue powder, this methylene blue has a purity of ≥99% (USP grade). Its molecular formula is C16H18ClN3S, with a molecular weight of 319.85 g/mol. The powder is soluble in both water and ethanol, giving a characteristic deep blue colour. Each 1-gram bottle is packaged in a high-density polyethylene container with a child-resistant cap for safe storage.

What Is Methylene Blue Powder?

This is a high-purity laboratory reagent, manufactured to USP/Pharma grade specifications. Methylene blue is a heterocyclic aromatic compound known for its distinctive blue colour. It is primarily used in analytical chemistry as a redox indicator, for staining in microscopy, and in educational demonstrations. Every batch undergoes independent third-party testing to guarantee purity and consistency.

Quality and Purity Standards

Our methylene blue powder conforms to the strict specifications of the United States Pharmacopoeia (USP) for purity, identity, and potency. Independent third-party testing verifies that each batch is free from contaminants and consistent in composition. This commitment to quality ensures suitability for sensitive applications where high purity is essential.

Key Features of Methylene Blue Powder

This product offers exceptional purity and ease of uses. The USP/Pharma grade classification ensures it meets rigorous standards. The powder form allows you to prepare solutions of any desired concentration simply by adding water. A single 1-gram bottle provides enough material for multiple experiments or demonstrations. Whether you are a researcher, teacher, or hobbyist, this powder delivers reliable performance.

Safety and Handling

When handling methylene blue powder, always wear appropriate personal protective equipment, including gloves and safety goggles. Avoid inhaling dust and prevent contact with skin and eyes. Work in a well-ventilated area or uses a fume cupboard. In the event of a spill, sweep up and dispose of according to local regulations. Store the powder in a cool, dry place away from direct sunlight and moisture, and keep the container tightly sealed when not in uses.

How to Prepare a Methylene Blue Solution

Preparing a solution from this powder is straightforward. For a 1% solution, add 1 gram of methylene blue powder to 100 mL of distilled or deionised water. Shake vigorously until fully dissolved. The solution is ready for immediate uses in staining or titration. For different concentrations, adjust the ratio of powder to water accordingly. Store prepared solutions in a tightly sealed container away from light to maintain stability.

Applications in Research and Education

Methylene blue is widely used in many scientific fields. In analytical chemistry, it serves as a redox indicator and is used for determining certain analytes. In biology and medicine, it stains nucleic acids and tissues, aiding microscopy and histology. Schools and universities uses it in classroom experiments to illustrate oxidation-reduction reactions and cellular staining. Its vivid colour makes it ideal for visible spectroscopy. The reagent is also employed in environmental testing and quality control laboratories.

FAQs About Methylene Blue

How should I store methylene blue powder? Store in a cool, dry place, away from direct sunlight and moisture. Keep the container tightly sealed.

Is this methylene blue suitable for human consumption? No, this product is a laboratory reagent and is not intended for human consumption. For research and educational uses only.

What is the shelf life of the powder? When stored properly, the powder has a long shelf life. See the label for the expiration date.

Can I uses tap water to make solutions? For best results, uses distilled or deionised water to avoid impurities.

This product is for laboratory and research uses only. Not for human consumption. Uses with appropriate safety precautions.