Boc-cys(et)-oh - ≥95% , CAS No.16947-82-3

CAS: 16947-82-3 Cat. No.: B182000 Molecular Weight: 249.3 EC Number: 681-419-1
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
N-Boc-S-Ethyl-L-cysteine | SCHEMBL3068819 | S-ethyl-N-t-butyloxycarbonyl-L-cysteine | N-(tert-butoxycarbonyl)-S-ethyl-L-cysteine (Boc-L-Cys(Et)-OH) | EN300-6730565 | (2R)-2-{[(tert-butoxy)carbonyl]amino}-3-(ethylsulfanyl)propanoic acid | FD21312 | MFCD000
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
B182000-1g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$25.90

$38.90
Save $13.00 (33.42%)
5g
B182000-5g
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$108.90

$163.90
Save $55.00 (33.56%)
25g
B182000-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$542.90

$814.90
Save $272.00 (33.38%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

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

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Quality documents

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

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Literature proof

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

Specifications

Synonyms
N-Boc-S-Ethyl-L-cysteine | SCHEMBL3068819 | S-ethyl-N-t-butyloxycarbonyl-L-cysteine | N-(tert-butoxycarbonyl)-S-ethyl-L-cysteine (Boc-L-Cys(Et)-OH) | EN300-6730565 | (2R)-2-{[(tert-butoxy)carbonyl]amino}-3-(ethylsulfanyl)propanoic acid | FD21312 | MFCD000
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Canonical SmilesCCSCC(C(=O)O)NC(=O)OC(C)(C)C
IUPAC Name(2R)-3-ethylsulfanyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid
InChIKeyIBCCMMVPGKVLAX-ZETCQYMHSA-N
INCHI1S/C10H19NO4S/c1-5-16-6-7(8(12)13)11-9(14)15-10(2,3)4/h7H,5-6H2,1-4H3,(H,11,14)(H,12,13)/t7-/m0/s1
Isomeric SMILES CCSC[C@@H](C(=O)O)NC(=O)OC(C)(C)C
Molecular Weight 249.3
Reaxy-Rn 37625041
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=37625041&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.

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🔬 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
ClassCarboxylic 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 Branched fatty acids  Carbamate esters  Sulfenyl compounds  Monocarboxylic acids and derivatives  Dialkylthioethers  Carboxylic acids  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Cysteine or derivatives - Branched fatty acid - Fatty acid - Fatty acyl - Carbamic acid ester - Dialkylthioether - Sulfenyl compound - Thioether - Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxide - Organic oxygen compound - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Carbonyl group - Organic nitrogen compound - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis 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
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Molecular Weight249.330 g/mol
XLogP31.600
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count7
Exact Mass249.103 Da
Monoisotopic Mass249.103 Da
Topological Polar Surface Area101.000 Ų
Heavy Atom Count16
Formal Charge0
Complexity250.000
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
Solution Calculators
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