Boc-S-(4-methoxybenzyl)-L-cysteine - ≥98% , CAS No.18942-46-6

CAS: 18942-46-6 Cat. No.: B116690 Molecular Weight: 341.42 EC Number: 242-695-5

GRADE & PURITY ≥98%

Synonyms

AKOS015897538 | Boc-Cys(p-MeOBzl)-OH | Boc-Cys(pMeOBzl)-OH | (R)-2-t-butoxycarbonylamino-3-(4-methoxy-benzylsulfanyl)-propionic acid | Xylose (VAN) | L-Cysteine, N-[(1,1-dimethylethoxy)carbonyl]-S-[(4-methoxyphenyl)methyl]- | AS-49012 | n-(tert-butoxycarb

Storage

Room temperature

Shipped In

Normal

Overview

Boc-S-4-methoxybenzyl-L-cysteine is one of the cysteine derivatives commonly utilized in Boc SPPS. The 4-methoxybenzyl group is removed by HF or TFMSA during cleavage of the peptide from the resin. The cysteine sidechain is released as a free sulfhydryl group. Disulfide bonds can be formed later by a variety of oxidation methods.

Specifications

Synonyms

AKOS015897538 | Boc-Cys(p-MeOBzl)-OH | Boc-Cys(pMeOBzl)-OH | (R)-2-t-butoxycarbonylamino-3-(4-methoxy-benzylsulfanyl)-propionic acid | Xylose (VAN) | L-Cysteine, N-[(1, 1-dimethylethoxy)carbonyl]-S-[(4-methoxyphenyl)methyl]- | AS-49012 | n-(tert-butoxycarb

Specifications & Purity

≥98%

Storage

Room temperature

Shipped In

Normal

Purity

≥98%

Names and Identifiers

• Pubchem Sid: 488186450
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488186450
• Canonical Smiles: CC(C)(C)OC(=O)NC(CSCC1=CC=C(C=C1)OC)C(=O)O
• IUPAC Name: (2R)-3-[(4-methoxyphenyl)methylsulfanyl]-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid
• InChIKey: VRTXRNJMNFVTOM-ZDUSSCGKSA-N
• INCHI: 1S/C16H23NO5S/c1-16(2,3)22-15(20)17-13(14(18)19)10-23-9-11-5-7-12(21-4)8-6-11/h5-8,13H,9-10H2,1-4H3,(H,17,20)(H,18,19)/t13-/m0/s1
• Isomeric SMILES: CC(C)(C)OC(=O)N[C@@H](CSCC1=CC=C(C=C1)OC)C(=O)O
• Molecular Weight: 341.42
• Reaxy-Rn: 13644539
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=13644539&ln=

Chemical and Physical Properties

• Molecular Weight: 341.400 g/mol
• XLogP3: 2.700
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 9
• Exact Mass: 341.13 Da
• Monoisotopic Mass: 341.13 Da
• Topological Polar Surface Area: 110.000 Ų
• Heavy Atom Count: 23
• Formal Charge: 0
• Complexity: 388.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 1
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 1