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Methyl Green
Also known as: Double green · Light green · C.I. BASIC BLUE 20 · Methyl green chloride
- CAS No.
- 54327-10-5
- Formula
- C26H33Cl2N3
- Molar mass
- 458.5 g/mol
- PubChem CID
- 6727
Harmful / Irritant
Summary
Methyl Green (C26H33Cl2N3), CAS 54327-10-5. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Physical properties
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Hazards
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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Compatibilities
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Open comparator with Methyl GreenPractical safety notes
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is Methyl Green flammable?+
Methyl Green (CAS 54327-10-5) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling Methyl Green?+
Safety glasses with side shields and nitrile gloves are the baseline. Ventilation should be sufficient to keep vapours below the occupational exposure limit. Check SDS section 8 for material-specific breakthrough times.
How should Methyl Green be stored?+
Store Methyl Green (CAS 54327-10-5) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials.
Is Methyl Green dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Methyl Green, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for Methyl Green?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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