4-(Hydroxymethyl)-1-methylpiperidine
4-(Hydroxymethyl)-1-methylpiperidine (CAS: 20691-89-8), a C7H15NO molecule with a molar mass of 129.20 g/mol, is a versatile heterocyclic building block. This compound, characterised by its piperidine ring with a methyl group and a hydroxymethyl substituent, serves as a valuable intermediate in chemical synthesis. Its structural features allow for diverse derivatisation, making it a useful component in the development of more complex molecules for various research and industrial applications.
- IUPAC
- (1-Methyl-4-piperidinyl)methanol,4-(Hydroxymethyl)-N-methylpiperidine
- Synonyms
- (1-Methyl-4-piperidinyl)methanol4-(Hydroxymethyl)-N-methylpiperidine

Pharmaceutical Intermediate
4-(Hydroxymethyl)-1-methylpiperidine is employed as a key building block in the synthesis of active pharmaceutical ingredients (APIs). Its piperidine core is a common motif in many drug molecules, facilitating the development of novel therapeutics.
Agrochemical Development
This compound can be utilised in the research and development of new agrochemical agents. Its structure may contribute to the biological activity required for pesticides, herbicides, or fungicides.
Material Science Research
As a functionalised heterocyclic compound, 4-(Hydroxymethyl)-1-methylpiperidine may find applications in material science, potentially contributing to the synthesis of polymers or specialised coatings.
Organic Synthesis Reagent
It serves as a useful reagent in general organic synthesis, enabling chemists to introduce the N-methylpiperidine moiety with a reactive hydroxymethyl group into target molecules.
| Molecular weight | 129.20 |
|---|---|
| Empirical formula | C7H15NO |
| Assay | 97% |
| Density | 0.981 g/mL at 25 °C |
| Refractive index | n20/D 1.477 |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Flash point | 110 °C / 230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36 |
| Safety statements (S) | 26 |
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 4-(Hydroxymethyl)-1-methylpiperidine used for?
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4-(Hydroxymethyl)-1-methylpiperidine (CAS: 20691-89-8) is primarily used as a building block in organic synthesis, particularly in the pharmaceutical and agrochemical industries, for creating more complex molecules.
What is the CAS number and chemical formula for 4-(Hydroxymethyl)-1-methylpiperidine?
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The CAS number is 20691-89-8 and the chemical formula is C7H15NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(Hydroxymethyl)-1-methylpiperidine with an assay of 97%. This product is not represented as USP, BP, or EP grade.
How should 4-(Hydroxymethyl)-1-methylpiperidine be handled?
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Warning: Causes serious eye irritation (H319). In case of contact with eyes, rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. It is advisable to wear protective gloves and eye protection when handling.
Is 4-(Hydroxymethyl)-1-methylpiperidine a controlled substance?
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Based on the provided data, 4-(Hydroxymethyl)-1-methylpiperidine is not indicated as a controlled substance.
How is 4-(Hydroxymethyl)-1-methylpiperidine packed and exported?
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Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging for safe transit. Specific packaging details can be confirmed upon inquiry.
How can I request a quote or sample for 4-(Hydroxymethyl)-1-methylpiperidine?
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To request a quote or sample for 4-(Hydroxymethyl)-1-methylpiperidine, please contact our sales department through the website or by phone.
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