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

CAS: 18942-46-6 Cat. No.: B116690 Peso molecular: 341.42 Número EC: 242-695-5
Disponible para pedir
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
 ·  off list, applied to all prices below.
Size
Estado
Price
Qty
5g
B116690-5g
5

10,90US$

19,90US$
Guardar 9,00 US$ (45.23%)
25g
B116690-25g
4

53,90US$

71,90US$
Guardar 18,00 US$ (25.03%)
100g
B116690-100g
1

212,90US$

258,90US$
Guardar 46,00 US$ (17.77%)
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Descripción general

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

Sinónimos
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
Especificaciones y pureza
≥98%
Condiciones de almacenamiento de almacenamiento
Room temperature
Enviado en
Normal
Pureza
≥98%
Nombres e identificadores
Pubchem Sid488186450
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488186450
Sonrisas canónicasCC(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
InChIKeyVRTXRNJMNFVTOM-ZDUSSCGKSA-N
INCHI1S/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
Isómeros SMILES CC(C)(C)OC(=O)N[C@@H](CSCC1=CC=C(C=C1)OC)C(=O)O
Peso molecular 341.42
Reaxy-Rn 13644539
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=13644539&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClaseCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives - Alpha amino acids and derivatives
Direct ParentCysteine 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 FrameworkAromatic 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
DescripciónThis 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
Estructura 3D
Modelo de Estructura Química Interactiva





Certificados (CoA, COO, BSE/TSE y tabla de análisis)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

3 results found

Lot NumberCertificate TypeFechaArticulo
H1603090Certificate of AnalysisMar 06, 2024 B116690
C2310824Certificate of AnalysisMar 14, 2023 B116690
C2310821Certificate of AnalysisMar 14, 2023 B116690
Propiedades químicas y físicas
Peso molecular341.400 g/mol
XLogP32.700
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count6
Rotatable Bond Count9
Exact Mass341.13 Da
Monoisotopic Mass341.13 Da
Topological Polar Surface Area110.000 Ų
Heavy Atom Count23
Formal Charge0
Complexity388.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Calculadoras de soluciones
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