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Merck
CN

911143

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
UNSPSC Code:
12352108
NACRES:
NA.23
MDL number:
MFCD22056310

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SMILES string

O(CCO)CCC(=O)OC(C)(C)C

InChI

1S/C9H18O4/c1-9(2,3)13-8(11)4-6-12-7-5-10/h10H,4-7H2,1-3H3

InChI key

ACWLDITVZGWIKA-UHFFFAOYSA-N

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

Related Categories

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

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCM5241

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