1-Piperidino-1-Cyclohexene (PCH)

Corrosive liquid used as a laboratory chemical/reagent. Causes severe skin burns and serious eye damage. Ingestion can lead to perforation of digestive tract tissue; inhalation and dermal exposures are serious.

CAS No: 2981-10-4

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Formula

C₁₁H₁₉N

Main Uses

Laboratory reagent

Appearance

Light yellow liquid

Handling

Handle only in closed systems

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Safety Highlights

Classified under OSHA/GHS as causing severe skin corrosion/irritation (Category 1B) and serious eye damage (Category 1). No official acute toxicity data provided, but ingestion, inhalation, or skin contact can result in severe injury; ingestion carries risk of gastrointestinal perforation.

Flammable Liquid

Not classified as flammable; however, vapors may still ignite if exposed to strong ignition sources in the presence of oxidizers.

Toxic on Contact

Corrosive by all routes of exposure—causes severe skin burns, serious eye damage, and can cause gastrointestinal perforation if ingested.

Corrosive Agent

Classified under OSHA/GHS as Skin Corrosion Category 1B and Eye Damage Category 1.

Emergency Measures

Rinse immediately with plenty of water for at least 15 minutes; seek immediate medical attention.

Proper Storage

Store refrigerated, tightly sealed under inert gas (e.g., argon) in a designated corrosives area. Keep away from strong oxidizers, moisture, and heat sources.

Regulatory ID

CAS No: 2981-10-4 | Formula: C₁₁H₁₉N | UN3267 — Corrosive liquid, basic, organic, n.o.s.; Class 8; Packing Group III.

Environmental Care

Do not allow release into drains or waterways. Contain and absorb spills with inert material; dispose of in accordance with hazardous waste regulations.

PPE Required

Chemical-resistant gloves, safety goggles or face shield, protective clothing, and respiratory protection if airborne exposure is possible.

Frequently Asked Questions

Summarizes PCH’s corrosive hazards, safe storage requirements, necessary PPE, emergency exposure responses, spill management, and environmental precautions in a quick-access format.

Is 1-Piperidino-1-Cyclohexene hazardous?

Yes. It is corrosive, causing severe skin burns and serious eye damage. Ingestion can cause gastrointestinal perforation; all exposure routes require immediate attention and decontamination.

How should it be stored?

Store refrigerated, in a tightly closed container under inert gas (e.g., argon), in a cool, dry, well-ventilated area designated for corrosives. Keep away from strong oxidizing agents.

What PPE is required during handling?

Use chemical-resistant gloves, eye protection (goggles or face shield), protective clothing, and, if ventilation is inadequate or exposure is possible, appropriate respiratory protection. Emergency eyewash and shower should be accessible.

What should I do in case of accidental exposure?

For skin or eye contact: rinse immediately with plenty of water (minimum 15 minutes) and seek immediate medical attention. If inhaled: move to fresh air and get medical help. If ingested: do not induce vomiting; seek immediate medical evaluation.

How is a spill handled and is it environmentally hazardous?

Avoid dispersal of the material; absorb with inert material and collect into closed containers for disposal. Do not allow it to enter drains or waterways; manage waste according to local/regional hazardous waste regulations.

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