PEG7-Tos
- CAS NO.：42749-28-0
- Empirical Formula: C19H32O9S
- Molecular Weight: 436.52
- MDL number: MFCD20926395
- Update Date: 2026-05-28 02:56:34
What is PEG7-Tos?
Description
PEG7-Tos is a PEG linker containing a hydroxyl group with a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The tosyl group is a very good leaving group for nucleophilic substitution reactions.
Properties of PEG7-Tos
| Boiling point: | 555.5±50.0 °C(Predicted) |
| Density | 1.196±0.06 g/cm3(Predicted) |
| pka | 14.36±0.10(Predicted) |
| form | Liquid |
| color | Colorless to light yellow |
Safety information for PEG7-Tos
| 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 PEG7-Tos
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![Ethanol, 2-[2-(2-hydroxyethoxy)ethoxy]-, 1-(4-Methylbenzenesulfonate)](https://img.chemicalbook.in/CAS/GIF/77544-68-4.gif)
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