Check the listing for details. Neutral Red, 59+% (Dye Content), Certified, 100g. Condition: New. Listed at 69.95 USD. Synonyms: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Basic Red 5, Toluylene redCAS: 553-24-2Molecular Formula: C15H16N4·HClMolecular Weight: 288.78 g/molTestSpecificationAppearance (Color)Dark green to blackAppearance (Form)PowderInfrared SpectrumConforms to structureAssay (Dye Content)59+%Assay (Elemental Analysis)[C] 43.44% [H] 4.18% [N] 12.98%Solubility (Color) 1mg/ml in waterRed to Dark Red or Dark PurpleUV-Visible Spectrum (0.00547g/l, 50% ethanol + 0.5ml acetic acid)E541=26,381, E275=28,577TLCConsistent with Past Lots This item will be shipped in accordance with FedEx/UPS carriers, per DOT 49CFR regulations, which will meet or exceed all of USPS regulations per 49CFR 172.101, published in Federal Register 10742. Note: eBay please do not delist.