Boc-Cys(trt)-OH - ≥99% , CAS No.21947-98-8

CAS: 21947-98-8 Cat. No.: B103066 Molecular Weight: 463.59 Beilstein Registry Number: 2028965 EC Number: 244-674-6
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
(2R)-2-(tert-butoxycarbonylamino)-3-tritylsulfanyl-propanoic acid;Boc-Cys(Trt)-OH | N-alpha-t-Butyloxycarbonyl-S-trityl-L-cysteine | BS-21032 | (R)-2-((tert-Butoxycarbonyl)amino)-3-(tritylthio)propanoic acid | J-300086 | N-BOC-S-trityl-cysteine | Boc-S-tr
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
B103066-1g
2
$9.90
5g
B103066-5g
3
$10.90
25g
B103066-25g
3

$26.90

$40.90
Save $14.00 (34.23%)
100g
B103066-100g
3

$93.90

$140.90
Save $47.00 (33.36%)
500g
B103066-500g
1

$320.90

$481.90
Save $161.00 (33.41%)
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice 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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
(2R)-2-(tert-butoxycarbonylamino)-3-tritylsulfanyl-propanoic acid;Boc-Cys(Trt)-OH | N-alpha-t-Butyloxycarbonyl-S-trityl-L-cysteine | BS-21032 | (R)-2-((tert-Butoxycarbonyl)amino)-3-(tritylthio)propanoic acid | J-300086 | N-BOC-S-trityl-cysteine | Boc-S-tr
Specifications & Purity
≥99%
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥99%
Names and Identifiers
Pubchem Sid504766101
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504766101
Canonical SmilesCC(C)(C)OC(=O)NC(CSC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)C(=O)O
IUPAC Name(2R)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-tritylsulfanylpropanoic acid
InChIKeyJDTOWOURWBDELG-QHCPKHFHSA-N
INCHI1S/C27H29NO4S/c1-26(2,3)32-25(31)28-23(24(29)30)19-33-27(20-13-7-4-8-14-20,21-15-9-5-10-16-21)22-17-11-6-12-18-22/h4-18,23H,19H2,1-3H3,(H,28,31)(H,29,30)/t23-/m0/s1
Isomeric SMILES CC(C)(C)OC(=O)N[C@@H](CSC(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3)C(=O)O
WGK Germany 3
Molecular Weight 463.59
Beilstein 2028965
Reaxy-Rn 2572425
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2572425&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
SuperclassBenzenoids
ClassTriphenyl compounds
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentTriphenyl compounds
Alternative Parents Cysteine and derivatives  Benzene and substituted derivatives  Carbamate esters  Sulfenyl compounds  Monocarboxylic acids and derivatives  Dialkylthioethers  Carboxylic acids  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Triphenyl compound - Cysteine or derivatives - Alpha-amino acid or derivatives - Monocyclic benzene moiety - Carbamic acid ester - Carboxylic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Thioether - Sulfenyl compound - Dialkylthioether - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Organosulfur compound - Carbonyl group - Organic oxide - Organic nitrogen compound - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as triphenyl compounds. These are aromatic compounds containing a triphenyl moiety.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
HeLa (62764 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
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.

5 results found

Lot NumberCertificate TypeDateItem
B2224439Certificate of AnalysisDec 10, 2025 B103066
B2225142Certificate of AnalysisDec 10, 2025 B103066
B2225150Certificate of AnalysisDec 10, 2025 B103066
B2225153Certificate of AnalysisDec 10, 2025 B103066
F2011019Certificate of AnalysisMar 06, 2024 B103066
Chemical and Physical Properties
SensitivityHeat sensitive
Specific Rotation[α][α]D 29° (C=1,EtOH)
Melt Point(°C)147 °C(dec.)
Molecular Weight463.600 g/mol
XLogP35.900
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count10
Exact Mass463.182 Da
Monoisotopic Mass463.182 Da
Topological Polar Surface Area101.000 Ų
Heavy Atom Count33
Formal Charge0
Complexity583.000
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
Citations of This Product
References
1. Xi Li, Qingzhu Liu, Siqin Ye, Shijie Wang, Ke Li, Gaochao Lv, Ying Peng, Ling Qiu, Jianguo Lin.  (2019)  A protease-responsive fluorescent probe for sensitive imaging of legumain activity in living tumor cells.  Chemical Biology & Drug Design,  94  (2): (1494-1503).  [PMID:31002467] [10.1111/cbdd.13530]
2. Xueyu Zhao, Gaochao Lv, Ying Peng, Qingzhu Liu, Xi Li, Shanshan Wang, Ke Li, Ling Qiu, Jianguo Lin.  (2018)  Targeted Delivery of an Activatable Fluorescent Probe for the Detection of Furin Activity in Living Cells.  CHEMBIOCHEM,  19  (10): (1060-1065).  [PMID:29465834] [10.1002/cbic.201800015]
Solution Calculators
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