This is serious lab-grade methylene blue powder - USP grade with 99.7%+ purity! You get 6 grams of dark greenish crystalline powder that you'll need to dilute before using. To make a 1% solution, just mix 1 gram of powder with 100ml of water. This stuff is ultra pure - third-party tested with no formaldehyde or heavy metals, so you know it's quality. The CAS numbers are 122965-43-9 and 7220-79-3 if you need that info. SUPER IMPORTANT - wear gloves when handling this because it stains like crazy! Seriously, it'll dye your skin blue and that takes forever to fade. Store it at room temperature and definitely keep it away from children and pets. This isn't for casual use - it's proper lab-grade material for educational, research, or specific technical applications. The dark green bronze color is exactly what you'd expect from high purity methylene blue trihydrate. If you need an MSDS report, it's available upon request. This isn't something you just experiment with - make sure you know what you're doing and have the proper safety equipment. But if you need quality methylene blue for legitimate purposes, this is the real deal. The 6 grams gives you enough to work with for multiple projects or solutions. Just remember - safety first with this stuff!
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