COOH-PEG5-COOtBu

 CAS No.: 1309460-29-4  Cat No.: BP-500710  Purity: ≥95% 4.5  

COOH-PEG5-COOtBu is a PEG linker containing a t-butyl-protected carboxyl group and a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

COOH-PEG5-COOtBu

Structure of 1309460-29-4

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Category
PROTAC Linker
Molecular Formula
C18H34O9
Molecular Weight
394.46
Appearance
Pale Yellow or Colorless Oily Matter

* For research and manufacturing use only. Not for human or clinical use.

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Purity
≥95%
Solubility
Soluble in DCM, DMF, DMSO, Water
Appearance
Pale Yellow or Colorless Oily Matter
Storage
Store at 2-8°C
Shipping
Room temperature in continental US; may vary elsewhere.
IUPACName
3-[2-[2-[2-[2-[3-[(2-methylpropan-2-yl)oxy]-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
Synonyms
Acid-PEG5-t-butyl ester; Acid-PEG5-C2-Boc; HOOCCH2CH2O-PEG4-CH2CH2COOtBu; COOH-PEG5-OtBu; Carboxy-PEG5-t-butyl ester; 2,2-Dimethyl-4-oxo-3,7,10,13,16,19-hexaoxadocosan-22-oic acid; 4,7,10,13,16-Pentaoxanonadecanedioic acid, 1-(1,1-dimethylethyl) ester; 4,7,10,13,16-Pentaoxanonadecane-1,19-dioic acid, mono(1,1-dimethylethyl) ester
Boiling Point
495.2±45.0°C (Predicted)
Density
1.109±0.06 g/cm3 (Predicted)
InChI Key
ILIIUHKWCBCCNI-UHFFFAOYSA-N
InChI
InChI=1S/C18H34O9/c1-18(2,3)27-17(21)5-7-23-9-11-25-13-15-26-14-12-24-10-8-22-6-4-16(19)20/h4-15H2,1-3H3,(H,19,20)
Canonical SMILES
CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCC(=O)O

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L

* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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* Total Molecular Weight:
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Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
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Historical Records: Bis-PEG7-acid | m-PEG2-COOH | Boc-PEG1-Boc | Bromo-PEG5-bromide | mPEG9-bromide | Azidoethyl-SS-PEG2-Boc | Bis-PEG3-t-butyl ester | Aminooxy-PEG7-methane | Azido-PEG5-CH2CO2-PFP | Propargyl-PEG6-COOtBu | COOH-PEG5-COOtBu

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