ChemicalBook--->CAS DataBase List--->62921-74-8

62921-74-8

62921-74-8 Structure

62921-74-8 Structure
IdentificationBack Directory
[Name]

2-(2-(2-Methoxyethoxy)ethoxy)ethyl 4-Methylbenzenesulfonate
[CAS]

62921-74-8
[Synonyms]

133307
m-PEG4-Tos
m-PEG4-OTs
TosO-(CH2CH2O)3-Me
2-[2-(2-Methoxyethoxy)ethoxy]ethyl Tosylate
2-[2-(2-Methoxyethoxy)ethoxy]ethyl p-Toluenesulfonate
2-[2-(2-methoxyethoxy)ethoxy]ethanol,4-methylbenzenesulfonicaci
2-[2-(2-methoxyethoxy)ethoxy]ethanol,4-methylbenzenesulfonic acid
Ethanol, 2-[2-(2-methoxyethoxy)ethoxy]-, 4-methylbenzenesulfonate
Ethanol, 2-[2-(2-methoxyethoxy)ethoxy]-, 1-(4-methylbenzenesulfonate)
4-Methylbenzenesulfonic Acid 2-[2-(2-Methoxyethoxy)ethoxy]ethyl Ester
[Molecular Formula]

C14H22O6S
[MDL Number]

MFCD06200731
[MOL File]

62921-74-8.mol
[Molecular Weight]

318.386
Chemical PropertiesBack Directory
[Boiling point ]

432.3±35.0 °C(Predicted)
[density ]

1.170±0.06 g/cm3(Predicted)
[refractive index ]

1.53
[storage temp. ]

Store at 0-8 °C
[form ]

clear liquid
[color ]

Colorless to Light yellow to Light orange
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
[HS Code ]

2909.49.1500
Hazard InformationBack Directory
[Description]

m-PEG4-Tos is a PEG linker containing a tosyl group. The tosyl group is a very good leaving group for nucleophilic substitution reactions. The hydrophilic PEG spacer increases solubility in aqueous media.
[Uses]

m-PEG3-Tos is a PEG-based PROTAC linker can be used in the synthesis of Silymarin (HY-W043277)[1].
[IC 50]

PEGs
[References]

[1] Yuxia Zhao, et al. Derivative of silybin ethers, and synthetic method and application thereof. Patent CN105037337A.
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