2,2,6,6-Tetramethyl-4-piperidone hydrochloride
2,2,6,6-Tetramethyl-4-piperidone hydrochloride (CAS 33973-59-0) is a heterocyclic organic compound with the molecular formula C9H17NO · HCl and a molecular weight of 191.70 g/mol. This white crystalline solid serves as a valuable building block in chemical synthesis. Its unique structure makes it a useful reagent, particularly in the development of miniaturised synthesis systems, contributing to advancements in analytical and synthetic methodologies.
- Synonyms
- 6-Tetramethyl-4-piperidone hydrochlorideC9H17NO · HCl

Reagent in Miniaturised Synthesis
Utilised as a reagent in micro-flow chemistry setups. It has been specifically employed for introducing discrete sample pulses into miniaturised synthesis and total analysis systems (πSYNTAS) via specialised injection valves.
Heterocyclic Building Block
Serves as a versatile building block for the synthesis of more complex heterocyclic compounds. Its piperidone core allows for various chemical transformations and functionalisation.
Chemical Synthesis Intermediate
Acts as an intermediate in multi-step organic syntheses. Its reactivity profile facilitates its incorporation into diverse molecular structures.
| Molecular weight | 191.70 |
|---|---|
| Empirical formula | C9H17NO · HCl |
| Assay | 98% |
| Application | 2,2,6,6-Tetramethyl-4-piperidone hydrochloride has been used as a reagent injected in the micromixer using a Rheodyne injection valve for introducing discrete sample pulses into the miniaturised-SYNthesis and Total Analysis System (πSYNTAS)1. |
| Melting point | 198 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 2,2,6,6-Tetramethyl-4-piperidone hydrochloride used for?
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2,2,6,6-Tetramethyl-4-piperidone hydrochloride is used as a building block in chemical synthesis, particularly as a reagent in miniaturised synthesis systems for introducing sample pulses.
What are the CAS number and formula for 2,2,6,6-Tetramethyl-4-piperidone hydrochloride?
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The CAS number is 33973-59-0, and its empirical formula is C9H17NO · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2,6,6-Tetramethyl-4-piperidone hydrochloride with a minimum assay of 98%. TSS does not represent this product as USP, BP, EP or other pharmacopoeia grades.
How should 2,2,6,6-Tetramethyl-4-piperidone hydrochloride be handled?
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Handling requires appropriate personal protective equipment, including a dust mask (N95 type recommended), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is a skin, eye, and respiratory tract irritant.
Can Tech Serve Solutions export 2,2,6,6-Tetramethyl-4-piperidone hydrochloride?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 2,2,6,6-Tetramethyl-4-piperidone hydrochloride.
How can I request a quote or sample?
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Please contact our sales team directly or use the online inquiry form on our website to request a quote or sample of 2,2,6,6-Tetramethyl-4-piperidone hydrochloride.
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