(±)−3-(3,4-Dihydroxyphenyl)-2-methyl-DL-alanine
(±)−3-(3,4-Dihydroxyphenyl)-2-methyl-DL-alanine (CAS 55-40-3) is a chemical compound with a molecular weight of 211.21 g/mol. It is recognised for its role in cell biology, specifically within cell signalling and neuroscience research. This compound is also known for its activity as an L-aromatic amino acid decarboxylase inhibitor, making it a valuable tool in studies related to neurotransmission and neurotransmitter metabolism. TSS supplies this compound for research purposes.
- IUPAC
- 2-Methyl-3-(3,4-dihydroxyphenyl)-DL-alanine,DL-α-Methyl-DOPA
- Synonyms
- 2-Methyl-3-(3,4-dihydroxyphenyl)-DL-alanineDL-α-Methyl-DOPA

Neuroscience Research
This compound serves as a valuable reagent in neuroscience research, aiding investigations into neurotransmission and neurotransmitter metabolism. Its properties are relevant for studying neurological pathways and functions.
Enzyme Inhibition Studies
As an L-aromatic amino acid decarboxylase inhibitor, (±)−3-(3,4-Dihydroxyphenyl)-2-methyl-DL-alanine is utilised in biochemical assays to understand enzyme kinetics and mechanisms. This facilitates research into enzyme-regulated biological processes.
Cell Biology Investigations
The compound is employed in cell biology research, particularly within the study of cell signalling pathways. It aids in understanding cellular responses and communication mechanisms.
| Molecular weight | 211.21 |
|---|---|
| Empirical formula | C10H13NO4 |
| Storage temperature | −20°C |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- 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 |
| 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.
| Gene Information | human ... DDC(1644) |
|---|
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 (±)−3-(3,4-Dihydroxyphenyl)-2-methyl-DL-alanine used for?
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This compound is primarily used in research settings for studies in neuroscience, cell biology, and as an inhibitor of L-aromatic amino acid decarboxylase, impacting investigations into neurotransmission and neurotransmitter metabolism.
What is the CAS number and formula for this compound?
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The CAS number is 55-40-3 and the empirical formula is C10H13NO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product for research and laboratory use. The specific assay and grade are detailed on the product specification sheet. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should this compound be handled and stored?
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Handle with appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves. It is classified with a GHS07 symbol, a Warning signal word, and hazard statement H319 (Causes serious eye irritation). Store at -20°C.
Is this chemical supplied globally by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including (±)−3-(3,4-Dihydroxyphenyl)-2-methyl-DL-alanine.
How can I request a sample or quote?
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To request a sample or a quote, please use the contact form on our website or contact our sales department directly. Please specify the product name and CAS number (55-40-3).
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