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Tos-PEG2-CH2CO2tBu

CAS No.
1643957-24-7
Chemical Name:
Tos-PEG2-CH2CO2tBu
Synonyms
Tos-PEG1-CH2-Boc;Tos-PEG2-CH2CO2tBu;Tos-PEG1-CH2COOtBu;tert-Butyl 2-[2-(tosyloxy)ethoxy]acetate;Tert butyl 2- (2- (p-toluenesulfonyloxy) ethoxy) acetate;Acetic acid, 2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethoxy]-, 1,1-dimethylethyl ester
CBNumber:
CB93062686
Molecular Formula:
C15H22O6S
Molecular Weight:
330.4
MDL Number:
MFCD28122953
MOL File:
1643957-24-7.mol
MSDS File:
SDS
Last updated:2026-05-28 06:27:49

Tos-PEG2-CH2CO2tBu Properties

Boiling point 449.0±30.0 °C(Predicted)
Density 1.183±0.06 g/cm3(Predicted)
storage temp. Store at Room Tem.
Appearance colorless liquid

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352-P305+P351+P338

Tos-PEG2-CH2CO2tBu price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
ChemScene CS-0105286 Tos-PEG1-CH2-Boc ≥97% 1643957-24-7 100mg $76 2026-06-04 Buy
ChemScene CS-0105286 Tos-PEG1-CH2-Boc ≥97% 1643957-24-7 250mg $110 2026-06-04 Buy
ChemScene CS-0105286 Tos-PEG1-CH2-Boc ≥97% 1643957-24-7 1g $275 2026-06-04 Buy
ChemScene CS-0105286 Tos-PEG1-CH2-Boc ≥97% 1643957-24-7 5g $1000 2026-06-04 Buy
Apolloscientific BIPG1858 Tos-PEG2-CH2CO2tBu 98% 1643957-24-7 250mg $504 2026-06-04 Buy
Product number Packaging Price Buy
CS-0105286 100mg $76 Buy
CS-0105286 250mg $110 Buy
CS-0105286 1g $275 Buy
CS-0105286 5g $1000 Buy
BIPG1858 250mg $504 Buy

Tos-PEG2-CH2CO2tBu Chemical Properties, Uses, Production

Description

Tos-PEG2-CH2CO2tBu is a PEG linker containing a t-butyl ester and a tosyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The t-butyl protected carboxyl group can be deprotected under acidic conditions. The tosyl group is a very good leaving group for nucleophilic substitution reactions.

Uses

Tos-PEG1-CH2-Boc is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].

IC 50

PEGs; Alkyl/ether

References

[1] Snaebjornsson MT, et al. Non-canonical functions of enzymes facilitate cross-talk between cell metabolic and regulatory pathways. Exp Mol Med. 2018 Apr 16;50(4):34. DOI:10.1038/s12276-018-0065-6

Tos-PEG2-CH2CO2tBu Preparation Products And Raw materials

Raw materials

Preparation Products

Tos-PEG2-CH2CO2tBu Suppliers

Global Suppliers ( 34)
Supplier Tel Email Country ProdList Advantage
Jinan elephant international trading co., LTD 13006575422@163.com China 6347 58
Shanghai Yihe Biological Technology Co., Ltd. 021-68882955 17721395025 2423903095@qq.com China 5000 58
Amatek Scientific Co. Ltd. 0512-56316828 400-867-5858;400-867-5858 info@amateksci.com China 28760 58
Aikon International Limited 025-66061636 19370895928 qqyang@aikonchem.com China 15810 58
SHANGHAI FDC-CHEMICAL CO.,LTD 021-61469567 13774476675 sales@fdc-chemical.com China 9999 58
Shanghai Maruhua Science and Technology Co. Ltd. 18721745940 sales2@api-chem.com China 1968 58
TargetMol Chemicals Inc. +1-781-999-5354; +1-00000000000 marketing@targetmol.com United States 32431 58
Blocksynth Pharmaceutical Technology Co.,Ltd 0086-19817745290; 19817745290 bd@blocksynth.com China 5971 58
Labnetwork lnc. +86-27-50766799 +86-18062016861 contact@labnetwork.com China 19981 58
Nextpeptide Inc +86-0571-81612335 +8613336028439 sales@nextpeptide.com China 19904 58
Tos-PEG2-CH2CO2tBu tert-Butyl 2-[2-(tosyloxy)ethoxy]acetate Tos-PEG1-CH2-Boc Acetic acid, 2-[2-[[(4-methylphenyl)sulfonyl]oxy]ethoxy]-, 1,1-dimethylethyl ester Tert butyl 2- (2- (p-toluenesulfonyloxy) ethoxy) acetate Tos-PEG1-CH2COOtBu 1643957-24-7