4-Fluorophenoxyacetic acid Chemical Properties

Melting point:

104-104.5 °C (lit.)

Boiling point:

295.2±15.0 °C(Predicted)

Density 

1.2708 (estimate)

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly)

form 

Solid

pka

pK1:3.13 (25°C)

color 

White to Off-White

BRN 

2259128

CAS DataBase Reference

405-79-8(CAS DataBase Reference)

NIST Chemistry Reference

P-fluorophenoxyacetic acid(405-79-8)

Safety Information

Hazard Codes 

Xn,Xi

Risk Statements 

36/37/38-22

Safety Statements 

37/39-26-24/25

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

29189900

MSDS

• Language:English Provider:p-Fluorophenoxyacetic acid
• Language:English Provider:SigmaAldrich
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4-Fluorophenoxyacetic acid Usage And Synthesis

Chemical Properties

white to light beige crystalline powder

Uses

4-Fluorophenoxyacetic acid (4FPA) induces parthenocarpy. 4-Fluorophenoxyacetic acid (4FPA) protects cereals from piercing-sucking insects and thereby increases rice yield in the field[1][2].

Purification Methods

Crystallise the acid from EtOH or H2O. [Hayes & Branch J Am Chem Soc 65 1555 1943, Beilstein 6 III 971, 6 IV 776.]

References

[1] Burton R. Anderson. et al. Control of Annual Bluegrass and Crabgrass in Turf with Fluorophenoxyacetic Acids. Weed Science. January 1958 , pp. 52-58.
[2] Wanwan Wang, et al. Induction of Defense in Cereals by 4-fluorophenoxyacetic Acid Suppresses Insect Pest Populations and Increases Crop Yields in the Field. Proc Natl Acad Sci U S A. 2020 Jun 2;117(22):12017-12028. DOI:10.1073/pnas.2003742117

4-Fluorophenoxyacetic acid(405-79-8)Related Product Information

• Folic acid
• Stearic acid
• Florfenicol
• 4-Fluoroanisole
• Phenoxyacetic acid
• 4-Fluorobenzaldehyde
• 4-Bromofluorobenzene
• Fluroxypyr
• Ethyl 2-(Chlorosulfonyl)acetate
• 4-Fluorobenzoic acid
• Transfluthrin
• Allyl phenoxyacetate
• Citric acid
• Ascoric Acid
• 4-Fluoronitrobenzene
• Methyl 4-fluorobenzoate
• Ethyl 4-fluorobenzoate
• 4-Fluorobenzonitrile