Methylene Blue 1% solution 1.7 Fl Oz 50 ml Ultra High Purity USP Pharma Grade Ingredients Third Party Tested Glass Bottle Heiltropfen®

1% Methylene Blue trihydrate, demineralized water. Pharma grade ingredients: Demineralized water (EP, USP), Methylene blue (USP). Third-Party Tested. 1 vertical drop contains 0.5 mg of Methylene Blue. Directions: Mix 1 ml (20 drops) of the solution with 200 ml of water, or use according to your established research protocols. Amber glass bottle with glass dropper/pipette. Packed in strong & hard heavy-duty cardboard tube: ideal protection for traveling and journeys. Tested for Heavy Metal Contamination. Upon request, a heavy metal analysis will be provided. Our product meets and exceeds USP requirements. Third-Party (USP) United States Pharmacopeia verified methylene blue incl. certificate. Our production facility is certified for GMP, ISO 22000, and ISO 22716 standards, ensuring the highest quality and compliance. ⬇⬇⬇ Please scroll down to check our Third-Party Heavy Metal analysis and other quality certificates. ⬇⬇⬇ Formaldehyde free. Methylene blue does not contain formaldehyde. Formaldehyde is a different compound that is used in industry and in some biological applications, but it is not part of the chemical composition of methylene blue.