Acid-PEG4-t-butyl ester
- CAS NO.：1835759-85-7
- Empirical Formula: C20H38O8
- Molecular Weight: 350.4
- MDL number: MFCD29042335
- Update Date: 2024-10-28 16:48:35
What is Acid-PEG4-t-butyl ester?
Description
Acid-PEG4-t-butyl ester is a PEG linker containing a t-butyl protected carboxyl group with a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions.
Properties of Acid-PEG4-t-butyl ester
| Boiling point: | 460.1±40.0 °C(Predicted) |
| Density | 1.107±0.06 g/cm3(Predicted) |
| solubility | Soluble in Water, DMSO, DCM, DMF |
| pka | 4.28±0.10(Predicted) |
| form | Liquid |
| color | Colorless to light yellow |
Safety information for Acid-PEG4-t-butyl 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. |
Computed Descriptors for Acid-PEG4-t-butyl ester
New Products
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