Butyl 2,4-dichlorophenoxyacetate

Synonym(s):2,4-D 1-butyl ester;Butyl 2,4-dichlorophenoxyacetate

CAS NO.：94-80-4
Empirical Formula: C12H14Cl2O3
Molecular Weight: 277.14
MDL number: MFCD00126845
EINECS: 202-364-8
SAFETY DATA SHEET (SDS)
Update Date: 2026-07-31 15:25:13

Butyl 2,4-dichlorophenoxyacetate Structural

What is Butyl 2,4-dichlorophenoxyacetate?

Chemical properties

colourless liquid

The Uses of Butyl 2,4-dichlorophenoxyacetate

2,4-D-1-butyl ester may be used as a reference standard for the determination of 2,4-D-1-butyl ester in soil samples by capillary high performance liquid chromatography with ultraviolet detection.

General Description

Clear colorless to light brown liquid.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Butyl 2,4-dichlorophenoxyacetate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.

Fire Hazard

Flash point data for Butyl 2,4-dichlorophenoxyacetate are not available. Butyl 2,4-dichlorophenoxyacetate is probably combustible.

Properties of Butyl 2,4-dichlorophenoxyacetate

Melting point:	9°C
Boiling point:	146-147°C
Density	1.2639 (rough estimate)
refractive index	1.5209 (estimate)
storage temp.	0-6°C
solubility	Chloroform (Slightly), Methanol (Slightly)
form	neat
color	Colourless
Water Solubility	<0.1 g/100 mL at 21 ºC
BRN	2056085
Stability:	Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference	94-80-4(CAS DataBase Reference)
NIST Chemistry Reference	Butyl (2,4-dichlorophenoxy)acetate(94-80-4)
EPA Substance Registry System	2,4-D butyl ester (94-80-4)

Safety information for Butyl 2,4-dichlorophenoxyacetate

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H317:Sensitisation, Skin H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water.