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Acid Yellow 25 free acid
Also known as: 25739-67-7 · Acid Yellow 25 free acid · EINECS 247-224-7 · 0ZS29NN04G
- CAS No.
- 25739-67-7
- Formula
- C23H21N5O6S2
- Molar mass
- 527.6 g/mol
- PubChem CID
- 22839
Summary
Acid Yellow 25 free acid (C23H21N5O6S2), CAS 25739-67-7. 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
No GHS data listed for this product yet.
Hazard statements
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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Open comparator with Acid Yellow 25 free acidPractical safety notes
- Handle Acid Yellow 25 free acid in a ventilated area, wear safety glasses and nitrile gloves, and consult the manufacturer's SDS before first use.
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 Acid Yellow 25 free acid flammable?+
Acid Yellow 25 free acid (CAS 25739-67-7) 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 Acid Yellow 25 free acid?+
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 Acid Yellow 25 free acid be stored?+
Store Acid Yellow 25 free acid (CAS 25739-67-7) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials.
Is Acid Yellow 25 free acid dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Acid Yellow 25 free acid, 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 Acid Yellow 25 free acid?+
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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