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1,4-Cyclohexadiene

Also known as: 1,4-CYCLOHEXADIENE · Cyclohexa-1,4-diene · 628-41-1 · 0F8Z5909QZ

CAS No.
628-41-1
Formula
C6H8
Molar mass
80.13 g/mol
PubChem CID
12343
GHS pictograms
GHS pictogram: FlammableFlammable
GHS pictogram: Health hazardHealth hazard
2D structure of 1,4-Cyclohexadiene
2D structure · PubChem CID 12343

Summary

1,4-Cyclohexadiene (C6H8), CAS 628-41-1. 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

GHS pictogram: Flammable
Flammable (GHS02)

Ignites easily when exposed to a flame or spark.

GHS pictogram: Health hazard
Health hazard (GHS08)

Serious long-term health effects (CMR, respiratory sensitizer).

Hazard statements

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

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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FDA recalls & enforcement

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Compatibilities

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Practical safety notes

  • Flammable. Keep away from open flames, hot surfaces and sparks. Ground containers when transferring.
  • Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.

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 1,4-Cyclohexadiene flammable?+

Yes. 1,4-Cyclohexadiene (CAS 628-41-1) carries the GHS02 flame pictogram. Keep it away from ignition sources, use non-sparking tools, and ground metal containers when transferring liquid.

What PPE should I wear when handling 1,4-Cyclohexadiene?+

Safety glasses with side shields and nitrile gloves are the baseline. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.

How should 1,4-Cyclohexadiene be stored?+

Store 1,4-Cyclohexadiene (CAS 628-41-1) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Use a flammable-liquid cabinet and keep away from oxidizers and heat.

Is 1,4-Cyclohexadiene dangerous for the environment?+

No specific environmental pictogram (GHS09) is listed in our records for 1,4-Cyclohexadiene, 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 1,4-Cyclohexadiene?+

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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