1-Methyl-3-oxopiperazine
1-Methyl-3-oxopiperazine (CAS: 34770-60-0; Formula: C5H10N2O; Molar Mass: 114.15 g/mol) is a heterocyclic organic compound. It functions as a valuable building block in chemical synthesis, particularly within the pharmaceutical and fine chemical industries. Its piperazine core with a methyl substituent offers versatile reactivity for constructing more complex molecular architectures, making it a useful intermediate for research and development purposes.
- IUPAC
- 1-Methylpiperazin-3-one,4-Methyl-2-piperazinone,4-Methylpiperazinone

Pharmaceutical Intermediate
1-Methyl-3-oxopiperazine serves as a key intermediate in the synthesis of various active pharmaceutical ingredients (APIs). Its structure is amenable to modifications for developing novel drug candidates.
Chemical Synthesis Building Block
This compound is utilized as a versatile building block in organic synthesis. Its heterocyclic nature and functional groups allow for diverse chemical transformations, enabling the construction of complex molecules.
Research and Development
Researchers employ 1-Methyl-3-oxopiperazine in laboratory settings for exploring new synthetic pathways and developing innovative chemical entities. Its availability aids in discovery research.
| Molecular weight | 114.15 |
|---|---|
| Empirical formula | C5H10N2O |
| Assay | 97% |
| Melting point | 85-89 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38-43 |
| Safety statements (S) | 26-36/37 |
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-Methyl-3-oxopiperazine used for?
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1-Methyl-3-oxopiperazine is primarily used as a building block in chemical synthesis, particularly in the pharmaceutical industry for the development of active pharmaceutical ingredients and in research and development.
What is the CAS number and formula for 1-Methyl-3-oxopiperazine?
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The CAS number for 1-Methyl-3-oxopiperazine is 34770-60-0, and its molecular formula is C5H10N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Methyl-3-oxopiperazine with a typical assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the product documentation.
How should 1-Methyl-3-oxopiperazine be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do. Continue rinsing.
Is 1-Methyl-3-oxopiperazine a controlled substance?
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The provided data does not indicate that 1-Methyl-3-oxopiperazine is a controlled substance.
How is 1-Methyl-3-oxopiperazine packed, shipped, and exported?
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As a specialist global supplier and exporter, Tech Serve Solutions ensures that 1-Methyl-3-oxopiperazine is packed and shipped in compliance with all relevant regulations for safe handling and international transport.
How can I request a sample or quote for 1-Methyl-3-oxopiperazine?
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To request a sample or a quote for 1-Methyl-3-oxopiperazine, please contact our sales team through the website or by phone, providing your specific requirements.
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