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D70724

Sigma-Aldrich

2,4-Dichlorophenoxyacetic acid

97%

Synonym(s):

2,4-D

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About This Item

Linear Formula:
Cl2C6H3OCH2CO2H
CAS Number:
94-75-7
Molecular Weight:
221.04
Beilstein:
1214242
EC Number:
202-361-1
MDL number:
MFCD00004300
UNSPSC Code:
12352100
PubChem Substance ID:
24894078
NACRES:
NA.22

vapor pressure

0.4 mmHg ( 160 °C)

Assay

97%

form

solid

mp

136-140 °C (lit.)

SMILES string

OC(=O)COc1ccc(Cl)cc1Cl

InChI

1S/C8H6Cl2O3/c9-5-1-2-7(6(10)3-5)13-4-8(11)12/h1-3H,4H2,(H,11,12)

InChI key

OVSKIKFHRZPJSS-UHFFFAOYSA-N

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General description

2,4-Dichlorophenoxyacetic acid is a widely used herbicide that decomposes in the presence of water and ultraviolet light to form polymeric humic acids.

Signal Word

Danger

Hazard Statements

H302,H317,H318,H335,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 3 - Eye Dam. 1 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

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Photodecomposition of 2, 4-dichlorophenoxyacetic acid
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