Biocytin
Biocytin (CAS: 576-19-2), with the empirical formula C16H28N4O4S and a molecular weight of 372.48 g/mol, is a modified amino acid. It serves as a critical substrate in biochemical research for studying biotinidase activity and kinetics. Biocytin is also utilised to measure biotinidase deficiency and as a model compound for investigating cellular and tissue uptake mechanisms, making it valuable in various biological research applications.
- IUPAC
- Bct,Nε-(+)-Biotinyl-L-lysine
- Synonyms
- Nε-(+)-Biotinyl-L-lysine

Enzyme Kinetics Studies
Biocytin functions as a substrate for studying the specificity and reaction rates of biotinidase enzymes. This allows researchers to gain insights into enzyme mechanisms and substrate interactions.
Diagnosis of Biotinidase Deficiency
It is employed in assays to measure biotinidase activity, aiding in the diagnosis and assessment of biotinidase deficiency in clinical research settings.
Cellular Uptake Mechanism Research
Biocytin serves as a model compound to investigate how cells and tissues absorb and transport specific molecules, contributing to the understanding of biological transport processes.
| Molecular weight | 372.48 |
|---|---|
| Empirical formula | C16H28N4O4S |
| Assay | ≥98% (TLC) |
| Optical activity | [α]20/D +53°, c = 1.05% in 0.1 M NaOH(lit.) |
| Storage temperature | −20°C |
| Application | Biocytin is used as a substrate to study the specificity and kinetics of biotinidase(s), to measure biotinidase deficiency and as a model compound to study various uptake mechanisms of cells and tissues. |
| Melting point | ~245 °C (dec.)(lit.) |
| 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.
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 Biocytin used for?
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Biocytin is used as a substrate to study the specificity and kinetics of biotinidase(s), to measure biotinidase deficiency, and as a model compound to study various uptake mechanisms of cells and tissues.
What are the CAS number and formula for Biocytin?
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The CAS number for Biocytin is 576-19-2, and its empirical formula is C16H28N4O4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Biocytin with an assay of ≥98% (TLC). TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
What are the safety and handling recommendations for Biocytin?
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When handling Biocytin, it is recommended to use safety measures including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if necessary. The compound has a German Water Hazard Class (WGK) of 3.
How is Biocytin shipped and exported by TSS?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and offers Biocytin for export worldwide. Specific packaging details are available upon request.
How can I request a sample or quote for Biocytin?
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You can request a sample or obtain a quote for Biocytin by contacting our sales team through the methods provided on our website.
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