| | Identification | Back Directory |  | [Name] 
 7-Octynoic acid
 |  | [CAS] 
 10297-09-3
 |  | [Synonyms] 
 7-Octynoic acid
 oct-7-ynoic acid
 WJBHDZBQZOMDFF-UHFFFAOYSA-N
 |  | [Molecular Formula] 
 C8H12O2
 |  | [MDL Number] 
 MFCD19228078
 |  | [MOL File] 
 10297-09-3.mol
 |  | [Molecular Weight] 
 140.18
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 19°C
 |  | [Boiling point ] 
 290.64°C (rough estimate)
 |  | [density ] 
 1.0450 (rough estimate)
 |  | [refractive index ] 
 1.4502
 |  | [solubility ] 
 DMSO: 150 mg/mL (1070.05 mM)
 |  | [form ] 
 Liquid
 |  | [pka] 
 4.74±0.10(Predicted)
 |  | [color ] 
 Colorless to light pink
 |  | [Water Solubility ] 
 Water: 5 mg/mL (35.67 mM)
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 7-Octynoic acid (compound 42) is a PROTAC linker and can be used in the synthesis of a series of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins[1]. 7-Octynoic acid is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
 |  | [Definition] 
 ChEBI: 7-octynoic acid is a medium-chain fatty acid.
 |  | [IC 50] 
 Alkyl-Chain
 |  | [References] 
 [1] Bai L, et al. A Potent and Selective Small-Molecule Degrader of STAT3 Achieves Complete Tumor Regression In Vivo. Cancer Cell. 2019 Nov 11;36(5):498-511.e17. DOI:10.1016/j.ccell.2019.10.002
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