FRD-903

FRD-903
Names
	Preferred IUPAC name 2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propanoic acid
	Other names Perfluoro-2-propoxypropanoic acid, hexafluoropropylene oxide dimer acid (HFPO-DA)
Identifiers
CAS Number	13252-13-6;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.032.928
EC Number	236-236-8;
PubChem CID	114481;
CompTox Dashboard (EPA)	DTXSID70880215 ;
	InChI InChI=1S/C6HF11O3/c7-2(1(18)19,4(10,11)12)20-6(16,17)3(8,9)5(13,14)15/h(H,18,19);
	SMILES C(=O)(C(C(F)(F)F)(OC(C(C(F)(F)F)(F)F)(F)F)F)O;
Properties
Chemical formula	C6HF11O3
Molar mass	330.053 g·mol−1
Acidity (pKa)	3.82
Hazards
	GHS labelling:
Hazard statements	H302, H314, H335
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

FRD-903 (also known as hexafluoropropylene oxide dimer acid, HFPO-DA, and 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoic acid) is a chemical compound that is used in the GenX process. This synthetic petrochemical is also described as a perfluoroalkyl ether carboxylic acid (PFECA).^[1] It is not biodegradable and is not hydrolyzed by water.^[2]^[3]

The ammonium carboxylate salt of FRD-903 is FRD-902 (ammonium (2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoate)) which is the specific chemical which Chemours has trademarked as part of GenX process.

References

^ "Gen-x/PFAS Information". Brunswick County, North Carolina. Retrieved 11 December 2021.
^ "Justification for the selection of a substance for CoRAP inclusion". Retrieved 23 July 2017.
^ Beekman, M.; et al. (2016-12-12). "Evaluation of substances used in the GenX technology by Chemours, Dordrecht". National Institute for Public Health and the Environment (RIVM, The Netherlands). Retrieved 2017-07-23.

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[1] "Gen-x/PFAS Information". Brunswick County, North Carolina. Retrieved 11 December 2021.

[2] "Justification for the selection of a substance for CoRAP inclusion". Retrieved 23 July 2017.

[3] Beekman, M.; et al. (2016-12-12). "Evaluation of substances used in the GenX technology by Chemours, Dordrecht". National Institute for Public Health and the Environment (RIVM, The Netherlands). Retrieved 2017-07-23.

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