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Bis-PEG4-t-butyl ester

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Category	COOtBu-PEGn-COOtBu
Catalog NO.	BPG-2098
Product Name	Bis-PEG4-t-butyl ester
CAS	2100306-53-2
Molecular Formula	C20H38O8
Molecular Weight	406.51

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Description	Bis-PEG4-t-butyl ester is a homobifunctional PEG linker that can be used in the synthesis of a series of PROTACs.
Synonyms	Di-tert-butyl 4,7,10,13-tetraoxahexadecane-1,16-dioate; OtBu-PEG4-OtBu; 4,7,10,13-Tetraoxahexadecanedioic acid, 1,16-bis(1,1-dimethylethyl) ester; Bis(2-methyl-2-propanyl) 4,7,10,13-tetraoxahexadecane-1,16-dioate; 4,7,10,13-Tetraoxahexadecane-1,16-dioic acid, bis(1,1-dimethylethyl) ester
IUPAC Name	tert-butyl 3-[2-[2-[2-[3-[(2-methylpropan-2-yl)oxy]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]propanoate
Canonical SMILES	CC(C)(C)OC(=O)CCOCCOCCOCCOCCC(=O)OC(C)(C)C
InChI	InChI=1S/C20H38O8/c1-19(2,3)27-17(21)7-9-23-11-13-25-15-16-26-14-12-24-10-8-18(22)28-20(4,5)6/h7-16H2,1-6H3
InChIKey	BEMRKFMWPQHBBR-UHFFFAOYSA-N
Boiling Point	452.9±35.0°C (Predicted)
Purity	≥95%
Density	1.039±0.06 g/cm3 (Predicted)
Appearance	Pale Yellow or Colorless Oily Matter
Storage	Store at 2-8°C

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