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Piperidine

Hexahydropyridine · Azinane · CAS 110-89-4

A saturated heterocyclic amine: piperidine's six-membered ring carries its nitrogen internally, giving it the secondary-amine basicity and reactivity that make it a workhorse reagent across rubber, synthesis and pharmaceutical chemistry.

Chelora Chemicals supplies piperidine to rubber, fine-chemical and pharmaceutical-intermediate manufacturers worldwide, with full GHS documentation on every consignment. Regulatory status varies by jurisdiction — please confirm your own compliance obligations before ordering.

  • Rubber-accelerator precursor
  • Synthesis solvent & base
  • Peptide-synthesis reagent
  • Pharmaceutical building block
  • Flammable & toxic — handle accordingly
  • Regulated — confirm compliance

Product identity

CAS Number
110-89-4
IUPAC name
Piperidine
Molecular formula
C₅H₁₁N
Molecular weight
85.150 g/mol
Boiling point
106 °C
Melting point
-7 °C
UN Number
UN 2401
HS Code
2933 32*

* Piperidine is subject to regulatory controls in a number of jurisdictions. Confirm current import/export compliance requirements for your destination with your own regulatory affairs team before ordering.

85.15g/mol molecular weight
106 °CBoiling point
-7 °CMelting point
0.862g/mL density
Product overview

What Piperidine is used for

Piperidine is a colourless liquid with a strong, pungent amine-like odour, built on a saturated six-membered ring containing one nitrogen atom. As a secondary cyclic amine it is a strong, non-nucleophilically hindered base widely used across organic synthesis.

Piperidine serves as the precursor to rubber-vulcanization accelerators, as a solvent and base in reactions such as the Stork enamine alkylation (converting ketones to reactive enamines), as the standard reagent for Fmoc deprotection in peptide synthesis, in DNA sequencing chemistry, and as a building block in pharmaceutical synthesis, including the insect repellent icaridin.

A note on regulatory status

Because of its history as a chemical of concern in certain regulatory frameworks, piperidine is subject to controlled-substance precursor regulations in a number of jurisdictions. We supply it only for legitimate industrial and research use and expect buyers to confirm and meet their own compliance obligations; our documentation desk can support the paperwork this requires.

Where it sits among amine ring structures

  • Cyclohexylamine amine attached to a carbocyclic ring. See that page.
  • Piperidine (this product) nitrogen inside a saturated six-membered ring — secondary amine.
  • Piperazine two nitrogens inside the ring — a related heterocyclic diamine. See that page.
Typical commercial specification
ParameterTypical value
AppearanceColourless liquid
Assay99.0% min
Water content0.3% max
Colour (Hazen)10 max

Important: the figures above are indicative of commercial material and are offered for planning only. The batch certificate of analysis is the governing document.

Physical & chemical properties
PropertyValue
Physical stateColourless liquid; pungent amine odour
Boiling point106 °C
Melting point-7 °C
Density0.862 g/mL
Water solubilityMiscible
Amine classSaturated heterocyclic secondary amine

Physical constants compiled from public reference data for CAS 110-89-4 and rounded for readability. Treat them as orientation, not as a specification.

Applications

Where our customers put this amine to work

A heterocyclic base valued across synthesis, rubber and pharmaceutical chemistry.

Rubber-accelerator precursor

A precursor in the manufacture of dithiuram-type rubber-vulcanization accelerators.

  • Technical grade specification
  • Bulk & drum supply
  • Technical desk review on request

Synthesis solvent & base

Used as a reaction solvent and strong secondary-amine base, including in enamine-forming reactions.

  • Technical-grade specification
  • Documented batch traceability
  • Contract & spot supply

Peptide-synthesis reagent

The standard reagent for Fmoc deprotection steps in solid-phase peptide synthesis.

  • Research and process-scale quantities
  • Full analytical documentation available
  • Retained sample held against the lot

DNA sequencing chemistry

Used in laboratory reagent formulations supporting DNA sequencing protocols.

  • Technical grade specification
  • Documented batch traceability
  • Technical desk review on request

Pharmaceutical building block

A starting material in pharmaceutical synthesis, including the insect repellent icaridin.

  • Bulk tank or drum supply
  • Full documentation supplied
  • Technical desk review on request

Contract & scheduled supply

Fine-chemical and pharmaceutical-intermediate plants running continuous consumption are supported with scheduled bulk delivery.

  • Annual contracts with scheduled call-off
  • Price held across the contract period
  • Second source held in reserve
Buying from Chelora

How we supply Piperidine

Chelora Chemicals is a supplier and sourcing partner, not a manufacturer. Piperidine's regulated status means end-use declaration and documentation matter as much as price — that shapes how we manage this line.

We place your order with whichever qualified producer best matches your required grade, your price point and your delivery window, and we require a clear statement of legitimate end use before booking.

We keep a second qualified source on this line, so a single-plant disruption never becomes your production problem.

  • End-use declaration required. We confirm legitimate industrial or research use before accepting an order.
  • UN 2401 logistics managed end to end. Classification, labelling and carrier compliance confirmed before booking.
  • Regulatory documentation filed correctly. Every shipment carries the correct hazard and compliance declarations.
  • Scheduled call-off scheduling. We hold contracted tonnage and release it against your consumption calendar.
  • Batch traceability to the producing plant. Full chain of custody documentation on request.
  • Export machinery handled in-house. Classification, approved packing, labelling, freight booking and customs paperwork are ours to manage.
Packing & logistics

Packed the way your plant receives it

Drum, IBC or bulk tank — tell us your preferred format and we will quote and classify to it.

Drums

200 L / 55 USG

Standard steel drums rated for UN 2401-classified liquid storage and transport.

IBCs

Intermediate bulk containers

For mid-volume orders where drum handling becomes a logistics burden.

ISO tank / road tanker

Synthesis-plant bulk volumes

Bulk liquid transport sized to continuous fine-chemical or rubber-plant consumption.

FOB · CIF · CFR · DDP

Incoterms to suit you

Quoted on the Incoterm your purchasing team works to, with documentation filed before booking.

1 kg / 25 kg packs

Trial / sample quantities

Small packs dispatched for research trials once end use is confirmed.

Scheduled release

Contracted call-off supply

We hold contracted tonnage and release it against your consumption calendar.

Safety, storage & handling

Flammable, toxic, and a regulated chemical

Piperidine's combination of flammability and toxicity makes containment and PPE the central handling concerns. It is also a regulated chemical in a number of jurisdictions. The summary below is orientation only — the safety data sheet supplied with your specific batch is the authoritative document.

GHS Signal word: Danger

Classified hazards

  • H225Highly flammable liquid and vapour.
  • H311Toxic in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H331Toxic if inhaled.

Always read the SDS issued with your specific batch. Eliminate ignition sources; handle with chemical-resistant gloves, splash goggles and adequate ventilation. Regulatory compliance documentation accompanies every order.

Storage

Store in tightly closed containers away from heat, sparks and open flame, in a well-ventilated area rated for highly flammable liquids, with access controlled per your site's regulated-chemical procedures.

Handling

Use with local exhaust ventilation and bond/ground equipment during transfer to control static discharge. Minimise inhalation and skin contact with appropriate PPE.

Transport

Shipped as UN 2401 in accordance with its flammable/toxic classification, with any additional regulated-chemical transport documentation your jurisdiction requires.

Quality assurance

Every batch, documented

We verify documentation before dispatch so there are no surprises at your incoming-goods bench.

End use confirmed

Legitimate industrial or research use confirmed before order placement.

Producer batch testing

The producing plant tests each batch against the agreed specification before release.

Documentation review

COA, SDS and regulatory/transport paperwork checked by our desk before the shipment is booked.

Traceable dispatch

Each shipment is traceable to its producing batch, with full chain-of-custody records on request.

Production background

How piperidine is made

Piperidine is produced industrially by the catalytic hydrogenation of pyridine, giving the saturated heterocyclic amine after purification and fractional distillation.

We do not publish operating process parameters here; this is background only. Full technical, safety and regulatory documentation accompanies every shipment, and any process-specific or compliance detail you need is best confirmed directly with our technical desk.

Quick reference
Chemical familySaturated heterocyclic amine
Ring structureSix-membered, one nitrogen (azinane)
ReactivityStrong secondary-amine base; forms enamines, amides and salts
Related compoundsPiperazine (two-nitrogen analog), Cyclohexylamine (carbocyclic analog)
Frequently asked

Piperidine, answered

What is piperidine used for?
Piperidine is used as a precursor to rubber-vulcanization accelerators, as a solvent and base in organic synthesis including the Stork enamine alkylation, as a reagent for Fmoc deprotection in peptide synthesis, in DNA sequencing chemistry, and as a building block in pharmaceutical synthesis including insect-repellent actives.
How does piperidine differ from cyclohexylamine?
Piperidine is a heterocyclic amine - the nitrogen sits inside a six-membered ring alongside five carbons, rather than being attached to a carbocyclic ring as in cyclohexylamine. This gives piperidine secondary-amine reactivity and base strength that differ from cyclohexylamine's primary-amine chemistry.
Is piperidine hazardous?
Yes. It is flammable, toxic in contact with skin and if inhaled, and causes severe skin burns and eye damage. It ships as UN 2401. Full GHS documentation accompanies every consignment. Piperidine is also subject to regulatory controls in some jurisdictions; buyers should confirm their own compliance obligations before ordering.
What grade do you supply?
Technical grade, typically 99%+ assay. Tell us your end use and we will quote against the correct specification.
What packing do you offer?
Drums, IBCs and bulk/ISO tank shipment, sized to rubber-accelerator, solvent and pharmaceutical-synthesis order volumes.
Do you manufacture this yourself?
No - Chelora Chemicals is a supplier and sourcing partner, not a manufacturer. We place your order with whichever qualified producer fits your specification and timeline, and hold a second source in reserve.
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Response timeWithin one business day