4-Amino-L-phenylalanine hydrochloride hemihydrate
4-Amino-L-phenylalanine hydrochloride hemihydrate (CAS: 312693-79-1) is a chemical compound with the formula H2NC6H4CH2CH(NH2)CO2H · HCl · 1/2H2O and a molecular weight of 225.67 g/mol. This unnatural amino acid derivative is primarily utilised in chemical synthesis and peptide chemistry. Its structure makes it valuable for research applications in chemical biology and the development of novel compounds.

Chemical Synthesis
Serves as a building block in the synthesis of complex organic molecules. Its unique structure allows for specific modifications and incorporation into larger molecular frameworks.
Peptide Chemistry
Utilised in the construction of peptides and peptidomimetics. Its incorporation can introduce specific functionalities or alter the properties of the resulting peptide chain.
Chemical Biology Research
Employed in studies investigating biological pathways and molecular interactions. It can be used to probe protein function or as a component in labelled biomolecules.
Development of Unnatural Amino Acids
Acts as a precursor or intermediate in the synthesis of novel, unnatural amino acids for advanced research purposes.
| Molecular weight | 225.67 |
|---|---|
| Linear formula | H2NC6H4CH2CH(NH2)CO2H · HCl · 1/2H2O |
| Assay | 98% |
| Optical activity | [α]20/D −8.5°, c = 2 in H2O |
| Melting point | 247-249 °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) | 26-36/37/39 |
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-Amino-L-phenylalanine hydrochloride hemihydrate used for?
+
4-Amino-L-phenylalanine hydrochloride hemihydrate is used in chemical synthesis, peptide chemistry, chemical biology research, and the development of unnatural amino acid derivatives.
What are the CAS number and formula for 4-Amino-L-phenylalanine hydrochloride hemihydrate?
+
The CAS number is 312693-79-1 and the chemical formula is H2NC6H4CH2CH(NH2)CO2H · HCl · 1/2H2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this product with an assay of 98%. It is supplied for research and development purposes and is not represented as USP, EP, BP, or any pharmacopoeial grade.
How should 4-Amino-L-phenylalanine hydrochloride hemihydrate be handled?
+
This compound is a Warning substance. Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust, and ensure adequate ventilation. Refer to the Safety Data Sheet for full handling instructions.
Can Tech Serve Solutions export 4-Amino-L-phenylalanine hydrochloride hemihydrate?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a sample or quote for 4-Amino-L-phenylalanine hydrochloride hemihydrate?
+
Please contact our sales team via the website or direct email to request a sample or a quotation for 4-Amino-L-phenylalanine hydrochloride hemihydrate.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis