Tos-PEG4-t-butyl ester - 98%, high purity , CAS No.217817-01-1

Item Number

T597166

Grouped product items
SKU	Size	Availability	Price
T597166-250mg	250mg	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$661.90
T597166-1g	1g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$1,351.90
T597166-5g	5g	Available within 8-12 weeks(?) Production requires sourcing of materials. We appreciate your patience and understanding.	$4,051.90

Tos-PEG-t-butyl ester

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Basic Description

Synonyms	3-(2-{2-[2-(Toluene-4-sulfonyloxy)-ethoxy]-ethoxy}-ethoxy)-propionic acid tert-butyl ester \| 1,1-Dimethylethyl 3-[2-[2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethoxy]ethoxy]ethoxy]propanoate \| tert-butyl 3-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethox
Specifications & Purity	≥98%
Storage Temp	Store at -20°C
Shipped In	Ice chest + Ice pads
Product Description	Tos-PEG4-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.

Names and Identifiers

IUPAC Name	tert-butyl 3-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]propanoate
INCHI	InChI=1S/C20H32O8S/c1-17-5-7-18(8-6-17)29(22,23)27-16-15-26-14-13-25-12-11-24-10-9-19(21)28-20(2,3)4/h5-8H,9-16H2,1-4H3
InChi Key	AAQWIVKRAHBPDM-UHFFFAOYSA-N
Canonical SMILES	CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCC(=O)OC(C)(C)C
Isomeric SMILES	CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCC(=O)OC(C)(C)C
PubChem CID	60146205
Molecular Weight	432.53

Safety and Hazards(GHS)

Pictogram(s)	GHS07
Signal	Warning
Hazard Statements	H315:Causes skin irritation H319:Causes serious eye irritation H335:May cause respiratory irritation
Precautionary Statements	P261:Avoid breathing dust/fume/gas/mist/vapors/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of water. P321:Specific treatment (see ... on this label). P405:Store locked up. P501:Dispose of contents/container to ... P264:Wash hands [and …] thoroughly after handling. P271:Use only outdoors or in a well-ventilated area. P304+P340:IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P362+P364:Take off contaminated clothing and wash it before reuse. P264+P265:Wash hands [and …] thoroughly after handling. Do not touch eyes. P337+P317:If eye irritation persists: Get medical help. P332+P317:If skin irritation occurs: Get medical help. P319:Get medical help if you feel unwell.

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Basic Description