Thiol-PEG3-acid
- CAS NO.：1347750-82-6
- Empirical Formula: C9H18O5S
- Molecular Weight: 238.3
- MDL number: MFCD25424073
- Update Date: 2025-07-16 09:55:30
What is Thiol-PEG3-acid?
Description
Thiol-PEG3-acid is a PEG linker containing a thiol group and a terminal carboxylic acid. The hydrophilic PEG spacer increases solubility in aqueous media. The thiol group reacts with maleimide, OPSS, vinylsulfone and transition metal surfaces including gold, silver, etc. 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.
Properties of Thiol-PEG3-acid
| Boiling point: | 377.5±37.0 °C(Predicted) |
| Density | 1.163±0.06 g/cm3(Predicted) |
| pka | 4.28±0.10(Predicted) |
| form | Liquid |
Safety information for Thiol-PEG3-acid
| 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 |
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. |
Computed Descriptors for Thiol-PEG3-acid
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