467154

N-(tert-Butoxycarbonyl)-L-cysteine methyl ester

97%, for peptide synthesis

• Synonym(s): N-Boc-L-cysteine methyl ester
• Linear Formula: HSCH₂CH[NHCO₂C(CH₃)₃]CO₂CH₃
• CAS Number: 55757-46-5
• Molecular Weight: 235.30
• MDL number: MFCD00799495
• UNSPSC Code: 12352209
• eCl@ss: 32160406
• PubChem Substance ID: 24870386
• NACRES: NA.22

Properties

• product name: N-(tert-Butoxycarbonyl)-L-cysteine methyl ester, 97%
• Assay: 97%
• form: liquid
• optical activity: [α]22/D +21°, c = 7.5 in chloroform
• reaction suitability: reaction type: solution phase peptide synthesis
• refractive index: n20/D 1.475 (lit.)
• bp: 214 °C (lit.)
• density: 1.143 g/mL at 25 °C (lit.)
• application(s): peptide synthesis
• SMILES string: COC(=O)[C@H](CS)NC(=O)OC(C)(C)C
• InChI: 1S/C9H17NO4S/c1-9(2,3)14-8(12)10-6(5-15)7(11)13-4/h6,15H,5H2,1-4H3,(H,10,12)/t6-/m0/s1
• InChI key: NJGIAKIPSDCYAC-LURJTMIESA-N

Description

Application

N-(tert-Butoxycarbonyl)-L-cysteine methyl ester is an N-terminal protected reagent that can be used in the synthesis of peptides and proteins containing cysteine residues, which can further be converted to dehydroalanine.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup