Skip to Content
Merck
CN
All Photos(1)

Documents

467154

Sigma-Aldrich

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

97%, for peptide synthesis

Synonym(s):

N-Boc-L-cysteine methyl ester

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
HSCH2CH[NHCO2C(CH3)3]CO2CH3
CAS Number:
Molecular Weight:
235.30
MDL number:
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.22

product name

N-(tert-Butoxycarbonyl)-L-cysteine methyl ester, 97%

Quality Level

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

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.

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Methods for converting cysteine to dehydroalanine on peptides and proteins.
Chalker J M, et al.
Chemical Science, 2(9), 1666-1676 (2011)
Inactivation of NF-κB components by covalent binding of (−)-dehydroxymethylepoxyquinomicin to specific cysteine residues.
Yamamoto M, et al.
Journal of Medicinal Chemistry, 51(18), 5780-5788 (2008)
Igor Linhart et al.
Archives of toxicology, 91(10), 3317-3325 (2017-03-12)
3-Nitrobenzanthrone (3-NBA), a potent environmental mutagen and carcinogen, is known to be activated in vivo to 3-benzanthronylnitrenium ion which forms both NH and C2-bound adducts with DNA and also reacts with glutathione giving rise to urinary 3-aminobenzanthron-2-ylmercapturic acid. In this
An insight into the radical thiol/yne coupling: the emergence of arylalkyne-tagged sugars for the direct photoinduced glycosylation of cysteine-containing peptides.
Minozzi M, et al.
The Journal of Organic Chemistry, 76(2), 450-459 (2010)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service