FAAzo4 | Photoswitchable fatty acid

CAS:
 1882060-21-0
Catalog Number:
 10-4942
FAAzo4 chemical structure

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FAAzo4 (1882060-21-0) is a photoswitchable fatty acid that cells rapidly incorporate into membrane phosphatidylcholine (PC) and phosphatidylethanolamine(PE) residues, mainly in the endoplasmic reticulum (ER). These photoswitchable membrane fatty acids allow for photoisomerization (trans-cis) leading to changes in membrane viscosity. FAAzo4-treated cells displayed altered ER export for  the proteins m-Cherry-TNFα and EGFP-GPI. An interesting new method for manipulating membrane biophysical properties in living cells.

References/Citations:

  1. Jimenez-Rojo et al. (2025), Optical Control of Membrane Viscosity Modulates ER-to-Golgi Trafficking; ACS Cent. Sci. 11 1736
1882060-21-0, FAAzo4, FAAzo4 supplier, photoswitchable fatty acid, trans-FAAzo4
CAS:
1882060-21-0
Catalog Number:
10-4942
Activity:
Photoswitchable fatty acid
Chemical Names:
trans-4-(4-((4-Butylphenyl)diazenyl)phenyl)butanoic acid
Alternate Name:
trans-FAAzo4
Molecular Weight:
324.42
Molecular Formula:

C20H24N2O2

Solubility:
Soluble in DMSO (>100 mg/ml(
Physical Properties:
Yellow/orange solid
Purity:

>98% HPLC
NMR: (Conforms)

Storage Temperature:
-20°C
Stability:
Stable for up to 2 years when stored as supplied @ -20°C. Solutions in DMSO may be stored at -20°C for up to 1 month. Protect from light.
Shipping Code:
RT

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Product Data Sheet:

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FAAzo4 (1882060-21-0) is a photoswitchable fatty acid that cells rapidly incorporate into membrane phosphatidylcholine (PC) and phosphatidylethanolamine(PE) residues, mainly in the endoplasmic reticulum (ER). These photoswitchable membrane fatty acids allow for photoisomerization (trans-cis) leading to changes in membrane viscosity. FAAzo4-treated cells displayed altered ER export for  the proteins m-Cherry-TNFα and EGFP-GPI. An interesting new method for manipulating membrane biophysical properties in living cells.

References/Citations:

  1. Jimenez-Rojo et al. (2025), Optical Control of Membrane Viscosity Modulates ER-to-Golgi Trafficking; ACS Cent. Sci. 11 1736

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