Tetraethylene glycol di-p-tosylate
Synonym(s):Tetraethylene glycol ditosylate
- CAS NO.：37860-51-8
- Empirical Formula: C22H30O9S2
- Molecular Weight: 502.6
- MDL number: MFCD00075239
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:12:03
What is Tetraethylene glycol di-p-tosylate?
Description
Tos-PEG5-Tos is a PEG linker containing two tosyl groups. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions.
The Uses of Tetraethylene glycol di-p-tosylate
Tetraethylene glycol di(p-toluenesulfonate) was used in the preparation of donor-spacer-acceptor podand system, dual channel fluorosensor for Li+, Mg2+ and Ca2+.
Storage
Powder: -20°C for 3 years | In solvent: -80°C for 1 year;
Properties of Tetraethylene glycol di-p-tosylate
| Melting point: | 65-69 °C |
| Boiling point: | 635.0±55.0 °C(Predicted) |
| Density | 1.242 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| form | clear liquid |
| color | colorless to yellow |
| BRN | 1610992 |
| InChI | InChI=1S/C22H30O9S2/c1-19-3-7-21(8-4-19)32(23,24)30-17-15-28-13-11-27-12-14-29-16-18-31-33(25,26)22-9-5-20(2)6-10-22/h3-10H,11-18H2,1-2H3 |
| EPA Substance Registry System | Ethanol, 2,2'-[oxybis(2,1-ethanediyloxy)]bis-, bis(4-methylbenzenesulfonate) (37860-51-8) |
Safety information for Tetraethylene glycol di-p-tosylate
| 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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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 Tetraethylene glycol di-p-tosylate
| InChIKey | SLAONPBUWDUSSO-UHFFFAOYSA-N |
| SMILES | O(CCOCCOS(C1=CC=C(C)C=C1)(=O)=O)CCOCCOS(C1=CC=C(C)C=C1)(=O)=O |
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