(Boc-Cys-OH)2
Nα,Nα′-di-Boc-L-cystine (CAS: 10389-65-8) is a protected form of the amino acid cystine, with the empirical formula C16H28N2O8S2 and a molecular weight of 440.53 g/mol. This compound serves as a crucial building block in peptide synthesis and chemical biology research, offering controlled reactivity of the amine groups. It is widely used in the development of novel peptides and complex organic molecules.
- IUPAC
- Nα,Nα′-di-Boc-L-cystine

Peptide Synthesis
Nα,Nα′-di-Boc-L-cystine is extensively used as a protected amino acid derivative in solid-phase and solution-phase peptide synthesis. The tert-butoxycarbonyl (Boc) protecting groups ensure selective coupling reactions, facilitating the controlled assembly of peptide chains.
Chemical Biology Research
Its well-defined structure and protected functional groups make it valuable in chemical biology for constructing peptide-based probes, modified peptides, and peptidomimetics for studying biological processes.
Organic Synthesis
The compound is employed as an intermediate in the synthesis of complex organic molecules, where the protected disulfide linkage and amino groups allow for specific chemical transformations.
| Molecular weight | 440.53 |
|---|---|
| Empirical formula | C16H28N2O8S2 |
| Assay | ≥98% (CE) |
| Optical activity | [α]20/D −120±3°, c = 2% in acetic acid |
| 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 Nα,Nα′-di-Boc-L-cystine used for?
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Nα,Nα′-di-Boc-L-cystine is primarily used as a protected amino acid in peptide synthesis and in chemical biology research for constructing modified peptides and peptidomimetics.
What is the CAS number and formula for Nα,Nα′-di-Boc-L-cystine?
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The CAS number is 10389-65-8, and the empirical formula is C16H28N2O8S2.
What grade and purity does Tech Serve Solutions supply for Nα,Nα′-di-Boc-L-cystine?
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Tech Serve Solutions supplies Nα,Nα′-di-Boc-L-cystine with an assay of ≥98% (CE). This product is typically supplied as a research or technical grade chemical and is not represented as USP, BP, or EP grade.
How should Nα,Nα′-di-Boc-L-cystine be handled safely?
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Handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or P1 (EN143) respirator filter may be necessary. The compound is classified with WGK Germany 3, indicating it is hazardous to water.
Is Nα,Nα′-di-Boc-L-cystine a controlled substance?
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Based on the provided data, there is no indication that Nα,Nα′-di-Boc-L-cystine is a controlled substance.
How is Nα,Nα′-di-Boc-L-cystine typically packed and shipped?
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Products are carefully packed to maintain integrity during transit and are exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical compounds.
How can I request a quote or sample for Nα,Nα′-di-Boc-L-cystine?
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To request a quote or a sample, please visit the Tech Serve Solutions website or contact our sales department directly with your inquiry.
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