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Tos-PEG5-Tos - 98%, high purity , CAS No.37860-51-8
Basic Description Synonyms 37860-51-8 | ((Oxybis(ethane-2,1-diyl))bis(oxy))bis(ethane-2,1-diyl) bis(4-methylbenzenesulfonate) | Bis-Tos-PEG4 | Tetraethylene glycol ditosylate | Tetraethylene Glycol Di-p-tosylate | Tetraethylene glycol di(p-toluenesulfonate) | Tos-PEG5-Tos | Tetraethylene Glycol Specifications & Purity 98% Storage Temp Store at -20°C Shipped In Ice chest + Ice pads Product Description Tos-PEG5-Tos is a PEG derivative 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.
Names and Identifiers IUPAC Name 2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethyl 4-methylbenzenesulfonate 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 InChi Key SLAONPBUWDUSSO-UHFFFAOYSA-N Canonical SMILES CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOS(=O)(=O)C2=CC=C(C=C2)C Isomeric SMILES CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOS(=O)(=O)C2=CC=C(C=C2)C WGK Germany 3 PubChem CID 3706987 Molecular Weight 502.59 Beilstein 1610990 Reaxy-Rn 1610992
Chemical and Physical Properties Refractive Index 1.53 Flash Point(°F) 230 °F Flash Point(°C) 110 °C
Safety and Hazards(GHS) Pictogram(s) GHS07 Signal Warning Hazard Statements H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
Precautionary Statements P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352: IF ON SKIN: wash with plenty of water.
P321: Specific treatment (see ... on this label).
P405: Store locked up.
P501: Dispose of contents/container to ...
P264: Wash hands [and …] thoroughly after handling.
P271: Use only outdoors or in a well-ventilated area.
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P403+P233: Store in a well-ventilated place. Keep container tightly closed.
P362+P364: Take off contaminated clothing and wash it before reuse.
P264+P265: Wash hands [and …] thoroughly after handling. Do not touch eyes.
P337+P317: If eye irritation persists: Get medical help.
P332+P317: If skin irritation occurs: Get medical help.
P319: Get medical help if you feel unwell.
WGK Germany 3 Reaxy-Rn 1610992
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