1-(2-Hydroxyethyl)piperidine
1-(2-Hydroxyethyl)piperidine (CAS 3040-44-6) is a tertiary amino alcohol with the molecular formula C7H15NO and a molar mass of 129.20 g/mol. Also known as 1-piperidineethanol, it is a clear liquid combining a saturated piperidine ring with a pendant 2-hydroxyethyl group. This bifunctional reactivity makes it a versatile heterocyclic building block in chemical synthesis, particularly for pharmaceutical intermediates and fine-chemical research. Tech Serve Solutions supplies it at 99% assay to laboratory and manufacturing customers worldwide.
- IUPAC
- 1-Piperidineethanol,2-Piperidinoethanol
- Synonyms
- 1-(2-Hydroxyethyl)piperidine1-Piperidineethanol2-PiperidinoethanolN-(2-Hydroxyethyl)piperidine2-(1-Piperidinyl)ethanolPiperidine-1-ethanol

Pharmaceutical and fine-chemical intermediate
Serves as a piperidine-based amino alcohol building block in the synthesis of active pharmaceutical ingredients and other fine chemicals. The secondary hydroxyl and tertiary amine offer convenient handles for alkylation, acylation and substitution chemistry.
Heterocyclic building block
Used to introduce the piperidinoethanol motif into more complex molecules. It is a common reagent for constructing N-substituted piperidine scaffolds in medicinal and exploratory chemistry.
Organic synthesis reagent
Functions as a tertiary amine base and nucleophile, and as a hydroxyethyl-bearing reactant for esterification, etherification and condensation reactions. Its dual functionality supports a broad range of laboratory transformations.
Research and development
Supplied at 99% assay for method development, structure-activity studies and small-scale process work where a defined, reproducible piperidine amino alcohol is required.
| Molecular weight | 129.20 |
|---|---|
| Empirical formula | C7H15NO |
| Assay | 99% |
| Boiling point | 199-202 °C(lit.) |
| Density | 0.973 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4804(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Flash point | 69 °C / 156.2 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 36/37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-(2-Hydroxyethyl)piperidine used for?
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It is used mainly as a heterocyclic building block and amino alcohol intermediate in chemical synthesis. Typical roles include the preparation of pharmaceutical intermediates and fine chemicals, and service as a tertiary amine base or hydroxyethyl-bearing reactant in organic synthesis. For uses outside well-documented chemistry, we recommend confirming suitability for your specific process.
What is the CAS number and molecular formula of 1-(2-Hydroxyethyl)piperidine?
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The CAS number is 3040-44-6 and the molecular formula is C7H15NO, with a molecular weight of 129.20 g/mol. Its EC number is 221-244-6, the MDL number is MFCD00006512 and the Beilstein registry number is 103390.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-(2-Hydroxyethyl)piperidine at 99% assay as a technical/research-grade reagent. Reported physical properties include a boiling point of 199-202 °C, density 0.973 g/mL at 25 °C and refractive index n20/D 1.4804. We do not represent this material as USP, BP or EP pharmacopoeial grade. A certificate of analysis is provided with each batch.
What are the safety and handling precautions for 1-(2-Hydroxyethyl)piperidine?
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It is classified under GHS07 with the signal word Warning. The hazard statements are H302 (harmful if swallowed), H315 (causes skin irritation), H319 (causes serious eye irritation) and H335 (may cause respiratory irritation). Precautionary measures include P261 and P305+P351+P338: avoid breathing vapour or mist, wear suitable protection, and if in eyes rinse cautiously with water for several minutes. The flash point is 69 °C and the German water-hazard class is WGK 3. Always consult the Safety Data Sheet before use.
How is 1-(2-Hydroxyethyl)piperidine packed, shipped and exported?
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It is supplied in tightly sealed containers appropriate to the order quantity, from laboratory packs to bulk, each labelled in line with GHS requirements. As a liquid with a 69 °C flash point and WGK 3 classification, it is packed, documented and shipped in accordance with applicable transport regulations, with full export documentation provided for international consignments.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, packaging and destination, and our team will respond with availability, lead time and documentation. Samples can be arranged for qualification, and a certificate of analysis accompanies each shipment.
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