Acid-PEG9-NHS ester
- CAS NO.：1895916-27-4
- Empirical Formula: C26H45NO15
- Molecular Weight: 611.63
- MDL number: MFCD28064339
- Update Date: 2026-05-28 00:10:13
What is Acid-PEG9-NHS ester?
Description
Acid-PEG9-NHS ester is a PEG linker containing a carboxylic acid and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. 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 NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.
Properties of Acid-PEG9-NHS ester
| Boiling point: | 685.1±65.0 °C(Predicted) |
| Density | 1.25±0.1 g/cm3(Predicted) |
| pka | 4.28±0.10(Predicted) |
Safety information for Acid-PEG9-NHS ester
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
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. P271:Use only outdoors or in a well-ventilated area. |
Computed Descriptors for Acid-PEG9-NHS ester
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