4-(Dimethylamino)butyric acid hydrochloride
4-(Dimethylamino)butyric acid hydrochloride (CAS 69954-66-1) is a derivative of butyric acid with the linear formula (CH3)2N(CH2)3CO2H·HCl and a molecular weight of 167.63 g/mol. This compound is recognised for its utility in chemical biology and synthesis. It serves as a building block in peptide chemistry, particularly for the incorporation of unnatural amino acid derivatives into peptide sequences. Its properties make it valuable for researchers developing novel biomolecules and chemical entities.

Peptide Synthesis
Used as a non-canonical amino acid derivative in solid-phase or solution-phase peptide synthesis to introduce modified side chains or altered structural motifs. Its incorporation can impact peptide conformation, stability, and biological activity.
Chemical Biology Research
Applied in the design and synthesis of novel peptides and peptidomimetics for studying biological processes, protein-ligand interactions, or developing diagnostic and therapeutic agents. Enables the creation of probes for biochemical assays.
Organic Synthesis
Serves as a versatile intermediate or building block in the construction of more complex organic molecules, leveraging the reactivity of its amino and carboxylic acid functionalities.
| Molecular weight | 167.63 |
|---|---|
| Linear formula | (CH3)2N(CH2)3CO2H·HCl |
| Assay | 98% |
| Melting point | 153-155 °C(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) | 26-37/39 |
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 4-(Dimethylamino)butyric acid hydrochloride used for?
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4-(Dimethylamino)butyric acid hydrochloride is primarily used in chemical biology and organic synthesis, particularly as a building block in peptide chemistry for creating unnatural amino acid derivatives.
What is the CAS number and formula for 4-(Dimethylamino)butyric acid hydrochloride?
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The CAS number is 69954-66-1, and its linear formula is (CH3)2N(CH2)3CO2H·HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(Dimethylamino)butyric acid hydrochloride with an assay of 98%. This product is supplied for laboratory and research purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-(Dimethylamino)butyric acid hydrochloride be handled safely?
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This compound is a warning irritant, causing skin, eye, and respiratory tract irritation (H315-H319-H335). Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation and avoid dust formation.
How is 4-(Dimethylamino)butyric acid hydrochloride packed and shipped?
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Tech Serve Solutions packs and exports chemicals in compliance with international shipping regulations. Specific packaging details are available upon request, ensuring safe transit for research and industrial applications.
How can I request a sample or quote for 4-(Dimethylamino)butyric acid hydrochloride?
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To request a sample or a quotation, please contact our sales team via the website or by phone, providing your specific requirements and shipping details.
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