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467154 Sigma-Aldrich

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

97%

Synonym: N-Boc-L-cysteine methyl ester

  • CAS Number 55757-46-5

  • Linear Formula HSCH2CH[NHCO2C(CH3)3]CO2CH3

  • Molecular Weight 235.30

  •  MDL number MFCD00799495

  •  eCl@ss 32160406

  •  PubChem Substance ID 24870386

  •  NACRES NA.22

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Properties

Related Categories Amino Acids & Derivatives, Chemical Biology, Chemical Synthesis, Cysteine/Cystine, Peptide Synthesis and Peptide Chemistry More...
Quality Level   100
assay   97%
optical activity   [α]22/D +21°, c = 7.5 in chloroform
application(s)   peptide synthesis: suitable
refractive index   n20/D 1.475 (lit.)
bp   214 °C (lit.)
density   1.143 g/mL at 25 °C (lit.)
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.

Packaging

5, 25 mL in glass bottle

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
235.4 °F - closed cup
Flash Point(C) 
113 °C - closed cup
Protocols & Articles
Peer-Reviewed Papers
15

References

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