(S)-3-(Fmoc-amino)-2-methylpropionic acid

CAS 203854-58-4C19H19NO4Chemical Synthesis

(S)-3-(Fmoc-amino)-2-methylpropionic acid (CAS: 203854-58-4) is a chiral beta-amino acid derivative with the molecular formula C19H19NO4 and a molecular weight of 325.36 g/mol. It is primarily utilised in chemical synthesis, particularly within peptide chemistry and the development of unnatural amino acid derivatives. Its protected nature makes it a valuable building block in complex organic synthesis and chemical biology research.

IUPAC: (S)-Fmoc-β2-Homoala-OH

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(S)-3-(Fmoc-amino)-2-methylpropionic acid (C19H19NO4) — chemical structure, CAS 203854-58-4; Chemistry, fine chemical supplied by Tech Serve Solutions

Beta-Amino AcidsChemical BiologyChemical SynthesisPeptide Chemistry

01 /Applications

Peptide Synthesis

Serves as a protected unnatural amino acid building block for incorporating beta-amino acids into peptide chains. This is crucial for developing peptides with novel structures and enhanced properties.

Chemical Biology Research

Utilised in studies exploring the biological functions and interactions of modified peptides and proteins. Its unique structure can introduce specific conformational constraints or functionalities.

Organic Synthesis

A valuable reagent in complex organic synthesis pathways, enabling the construction of stereochemically defined molecules. Its Fmoc protecting group facilitates controlled synthetic strategies.

Unnatural Amino Acid Derivatives

Acts as a precursor for creating a diverse range of unnatural amino acid derivatives with tailored properties for various research applications.

02 /Properties

Molecular weight	325.36
Empirical formula	C19H19NO4
Assay	≥95.0%
Storage temperature	2-8°C

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

203854-58-4

MDL number

MFCD03788584

Beilstein registry

8008600

05 /Quality & supply

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.

06 /Frequently asked questions

What is (S)-3-(Fmoc-amino)-2-methylpropionic acid used for?

(S)-3-(Fmoc-amino)-2-methylpropionic acid is used in chemical synthesis, particularly in peptide chemistry and as a building block for unnatural amino acid derivatives and in chemical biology research.

What is the CAS number and molecular formula for (S)-3-(Fmoc-amino)-2-methylpropionic acid?

The CAS number is 203854-58-4 and the molecular formula is C19H19NO4.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies this product with an assay of ≥95.0%. We do not represent it as USP, BP, EP, or other pharmacopoeia grades.

What are the safety and handling precautions for this chemical?

Appropriate personal protective equipment, including eyeshields and gloves, should be worn. A type N95 (US) or type P1 (EN143) respirator filter is recommended. This compound is classified under WGK 2 in Germany.

How is (S)-3-(Fmoc-amino)-2-methylpropionic acid packed and shipped?

This product is stored at 2-8°C. Tech Serve Solutions exports fine chemicals globally, ensuring appropriate packaging and documentation for international shipment.