| | Identification | Back Directory |  | [Name] 
 3-(2-hydroxyethoxy)propanoic acid
 |  | [CAS] 
 89211-34-7
 |  | [Synonyms] 
 89211-34-7
 OH-PEG1-COOH
 Hydroxy-PEG1-acid
 3-(2-hydroxyethoxy)propanoic acid
 Propanoic acid, 3-(2-hydroxyethoxy)-
 |  | [Molecular Formula] 
 C5H10O4
 |  | [MDL Number] 
 MFCD11618155
 |  | [MOL File] 
 89211-34-7.mol
 |  | [Molecular Weight] 
 134.13
 | 
 | Chemical Properties | Back Directory |  | [Boiling point ] 
 127-130 °C(Press: 2 Torr)
 |  | [density ] 
 1.224±0.06 g/cm3(Predicted)
 |  | [form ] 
 Liquid
 |  | [pka] 
 4.26±0.10(Predicted)
 |  | [color ] 
 Colorless to light yellow
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 Hydroxy-PEG1-acid is a non-cleavable 1 unit PEG ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1].
 |  | [IC 50] 
 Non-cleavable Linker
 |  | [References] 
 [1] Beck A, et al. Strategies and challenges for the next generation of antibody-drug conjugates. Nat Rev Drug Discov. 2017 May;16(5):315-337. DOI:10.1038/nrd.2016.268
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