≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
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.
| 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= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic acids and derivatives |
| Class | Carboxylic acids and derivatives |
| Subclass | Amino acids, peptides, and analogues |
| Intermediate Tree Nodes | Amino acids and derivatives - Alpha amino acids and derivatives |
| Direct Parent | Cysteine and derivatives |
| Alternative Parents | Phenoxy compounds Methoxybenzenes Anisoles Alkyl aryl ethers Carbamate esters Organic carbonic acids and derivatives Sulfenyl compounds Monocarboxylic acids and derivatives Dialkylthioethers Carboxylic acids Organopnictogen compounds Organonitrogen compounds Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Cysteine or derivatives - Phenoxy compound - Anisole - Phenol ether - Methoxybenzene - Alkyl aryl ether - Monocyclic benzene moiety - Benzenoid - Carbamic acid ester - Carbonic acid derivative - Carboxylic acid - Ether - Monocarboxylic acid or derivatives - Thioether - Dialkylthioether - Sulfenyl compound - Organonitrogen compound - Organic oxide - Organic oxygen compound - Organooxygen compound - Organosulfur compound - Hydrocarbon derivative - Organopnictogen compound - Carbonyl group - Organic nitrogen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as cysteine and derivatives. These are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. |
| External Descriptors | Not available |
| 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 |
H1603090