1-Amino-4-methylpiperazine dihydrochloride monohydrate
1-Amino-4-methylpiperazine dihydrochloride monohydrate (CAS 40675-60-3) is a heterocyclic organic compound with the formula C5H13N3 · 2HCl · H2O and a molecular weight of 206.11 g/mol. This white to off-white crystalline powder serves as a valuable building block in chemical synthesis. It is commonly employed in the development of novel compounds within pharmaceutical research and the fine chemical industry.

Pharmaceutical Intermediate
Utilised as a key intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its structure allows for further functionalisation in the development of new therapeutic agents.
Organic Synthesis Building Block
A versatile reagent in organic chemistry, particularly for introducing the methylpiperazine moiety into larger molecular structures. Applicable in creating complex organic molecules.
Research and Development
Frequently employed in academic and industrial research laboratories for exploring new chemical reactions and molecular designs. Aids in the discovery of novel compounds with potential applications.
| Molecular weight | 206.11 |
|---|---|
| Empirical formula | C5H13N3 · 2HCl · H2O |
| Assay | 97% |
| Melting point | 230 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- 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, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-37/39 |
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-Amino-4-methylpiperazine dihydrochloride monohydrate used for?
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This compound is primarily used as a building block in chemical synthesis, particularly in the pharmaceutical industry for developing new drug candidates and in research laboratories for exploring novel organic molecules.
What are the CAS number and formula for this product?
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The CAS number is 40675-60-3, and the empirical formula is C5H13N3 · 2HCl · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. It is supplied for research and development use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the primary safety concerns when handling this chemical?
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This compound is classified as harmful if swallowed, in contact with skin, or if inhaled, and causes skin and serious eye irritation, as well as respiratory irritation (H302, H312, H332, H315, H319, H335). Always handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, in a well-ventilated area.
Is this product available for international export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals and reagents.
How can I request a sample or quote for 1-Amino-4-methylpiperazine dihydrochloride monohydrate?
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Please contact our sales team through the website or via email to request a sample or a formal quotation. We aim to respond promptly to all inquiries.
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