Tos-PEG7-t-Butyl ester - ≥98% , CAS No.406213-75-0

CAS: 406213-75-0 Cat. No.: T597172 Molecular Weight: 564.70
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Tos-PEG6-C2-Boc | 3,6,9,12,15,18-Hexaoxaheneicosan-21-oic acid,1-[[(4-methylphenyl)sulfonyl]oxy]-, 1,1-dimethylethyl ester | tert-butyl 1-(tosyloxy)-3,6,9,12,15,18-hexaoxahenicosan-21-oate
Storage
Protected from light,Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
Application
227,228,229
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
T597172-250mg
2
$234.90
1g
T597172-1g
2
$659.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Protected from light,Store at -20°C,Argon charged Ships Ice chest + Ice pads 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.

Overview

Tos-PEG7-t-Butyl ester is a PEG derivative containing a t-butyl ester and a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The tosyl group is a very good leaving group for nucleophilic substitution reactions.

Specifications

Synonyms
Tos-PEG6-C2-Boc | 3, 6, 9, 12, 15, 18-Hexaoxaheneicosan-21-oic acid, 1-[[(4-methylphenyl)sulfonyl]oxy]-, 1, 1-dimethylethyl ester | tert-butyl 1-(tosyloxy)-3, 6, 9, 12, 15, 18-hexaoxahenicosan-21-oate
Specifications & Purity
≥98%
Storage
Protected from light, Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesCC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C
IUPAC Nametert-butyl 3-[2-[2-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
InChIKeyHMGVIAOGIVRIFP-UHFFFAOYSA-N
INCHI1S/C26H44O11S/c1-23-5-7-24(8-6-23)38(28,29)36-22-21-35-20-19-34-18-17-33-16-15-32-14-13-31-12-11-30-10-9-25(27)37-26(2,3)4/h5-8H,9-22H2,1-4H3
Isomeric SMILES CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C
Molecular Weight 564.70

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
ClassBenzene and substituted derivatives
SubclassBenzenesulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzenesulfonate esters
Alternative Parents p-Methylbenzenesulfonates  Tosyl compounds  Benzenesulfonyl compounds  Arylsulfonic acids and derivatives  Organosulfonic acid esters  Sulfonyls  Carboxylic acid esters  Monocarboxylic acids and derivatives  Dialkyl ethers  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonate ester - P-methylbenzenesulfonate - Tosyl compound - Arylsulfonic acid or derivatives - Benzenesulfonyl group - Toluene - Organosulfonic acid ester - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Sulfonyl - Carboxylic acid ester - Monocarboxylic acid or derivatives - Ether - Dialkyl ether - Carboxylic acid derivative - Organic oxygen compound - Organosulfur compound - Organooxygen compound - Organic oxide - Carbonyl group - Hydrocarbon derivative - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzenesulfonate esters. These are arenesulfonate esters that result from the formal condensation of the hydroxy group of an alcohol, enol, phenol or heteroarenol with benzenesulfonic acid.
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:

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

2 results found

Lot NumberCertificate TypeDateItem
H2528651Certificate of AnalysisMay 08, 2025 T597172
H2528669Certificate of AnalysisMay 08, 2025 T597172
Chemical and Physical Properties
SensitivityMoisture sensitive;Light sensitive
Molecular Weight564.700 g/mol
XLogP31.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count11
Rotatable Bond Count25
Exact Mass564.26 Da
Monoisotopic Mass564.26 Da
Topological Polar Surface Area133.000 Ų
Heavy Atom Count38
Formal Charge0
Complexity680.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
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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