L-Homocystine

CAS 626-72-2C8H16N2O4S2Chemical Synthesis

L-Homocystine (CAS: 626-72-2), with the molecular formula C8H16N2O4S2 and a molecular weight of 268.35 g/mol, is a non-proteinogenic amino acid derivative. It is characterised by its disulfide linkage. This compound serves as a valuable building block in chemical synthesis and is frequently utilised in biochemical research and the study of peptide chemistry, particularly for developing unnatural amino acid derivatives and modified peptides.

IUPAC: L-4,4′-Dithiobis(2-aminobutanoic acid)

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L-Homocystine (C8H16N2O4S2) — chemical structure, CAS 626-72-2; Chemistry, fine chemical supplied by Tech Serve Solutions

Amino AcidsBiochemicals and ReagentsChemical BiologyChemical SynthesisHomo-Amino AcidsModified Amino AcidsPeptide Chemistry

01 /Applications

Chemical Synthesis

L-Homocystine is employed as a versatile reagent in organic synthesis for the construction of complex molecules and modified peptide chains. Its unique structure allows for diverse chemical transformations.

Biochemical Research

This compound is instrumental in biochemical studies, aiding researchers in investigating biological pathways and the function of sulfur-containing amino acids. It is useful in the development of novel biochemical probes.

Peptide Chemistry

L-Homocystine serves as a key component in the synthesis of unnatural peptides and modified amino acid derivatives, expanding the repertoire of peptide structures and functionalities.

02 /Properties

Molecular weight	268.35
Empirical formula	C8H16N2O4S2
Assay	≥98.0% (NT)
Optical activity	[α]20/D +77±3°, c = 1% in 1 M HCl
Melting point	281-284 °C (dec.)(lit.)

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

626-72-2

MDL number

MFCD00020391

PubChem substance

24895724

Beilstein registry

1728583

05 /Additional specifications

Quality Level	PREMIUM

06 /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.

07 /Frequently asked questions

What is L-Homocystine used for?

L-Homocystine is used in chemical synthesis, biochemical research, and peptide chemistry, particularly for creating unnatural amino acid derivatives and modified peptides.

What is the CAS number and formula for L-Homocystine?

The CAS number for L-Homocystine is 626-72-2, and its molecular formula is C8H16N2O4S2.

What grade and purity does Tech Serve Solutions supply for L-Homocystine?

Tech Serve Solutions supplies L-Homocystine with a purity of ≥98.0% (NT), designated as PREMIUM quality. We do not represent this product as USP, BP, or EP grade.

What are the safety and handling considerations for L-Homocystine?

L-Homocystine requires the use of safety measures including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. It is classified with WGK Germany 3.

Is L-Homocystine a controlled substance?

The provided data does not indicate that L-Homocystine is a controlled substance.

How is L-Homocystine packed and shipped?

Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents. Specific packing and shipping details are available upon request.