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911143

Sigma-Aldrich

HO-PEG24-propanoic acid t-butyl ester

Synonym(s):

HO-PEG-tert-butyl ester, Hydroxyl PEG tert-butyl ester, Hydroxyl-PEG-tert-butyl ester

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About This Item

Empirical Formula (Hill Notation):
C55H110O27
CAS Number:
1186025-29-5
Molecular Weight:
1203.45
MDL number:
MFCD22056310
UNSPSC Code:
12352108
NACRES:
NA.23

form

solid or liquid

mol wt

average Mn 1,200 (by NMR)

reaction suitability

reagent type: chemical modification reagent
reactivity: amine reactive

color

white to off-white

Ω-end

(tert-Butyl ester)

α-end

hydroxyl

polymer architecture

shape: linear
functionality: monofunctional

storage temp.

−20°C

Application

Polyethylene glycols (PEGs) are FDA approved hydrophilic polymers. They are non-toxic, non-immunogenic and non-antigenic, and are widely used in a varity of biomedical applications such as bioconjugation, drug delivery, surface functionalization, and tissue engineering. The propionic acid group in HO-PEG-propanoic acid t-butyl ester is protected, preventing self-coupling.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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