PEG9-t-butly ester

CAS NO.：1334177-84-2
Empirical Formula: C23H46O11
Molecular Weight: 498.6
MDL number: MFCD11041105
Update Date: 2026-05-28 05:54:19

What is PEG9-t-butly ester?

Description

Hydroxy-PEG8-t-butyl ester is a PEG linker containing a hydroxyl group with a t-butyl ester. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl protected carboxyl group can be deprotected under acidic conditions.

Properties of PEG9-t-butly ester

Boiling point:	549.5±45.0 °C(Predicted)
Density	1.083±0.06 g/cm3(Predicted)
storage temp.	2-8°C
solubility	Soluble in Water, DMSO, DMF, DCM
pka	14.36±0.10(Predicted)
form	Liquid

Safety information for PEG9-t-butly ester

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.