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94-80-4

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94-80-4 Usage

General Description

2-(2,4-Dichlorophenoxy)butylacetate, also known as 2,4-DB, is a selective herbicide used to control broadleaf weeds in various crops such as soybeans, peanuts, and flax. It belongs to the phenoxy herbicides group and is commonly available in the form of an amine salt or ester. 2,4-DB works by mimicking the action of the plant growth hormone auxin, causing uncontrolled growth in the target weeds, eventually leading to their death. Due to its effectiveness and low toxicity to mammals and birds, 2,4-DB is widely used in agriculture and has been extensively studied for its potential environmental impact. However, proper application and management are crucial to prevent adverse effects on non-target plants and ecosystems.

Check Digit Verification of cas no

The CAS Registry Mumber 94-80-4 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 4 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 94-80:
(4*9)+(3*4)+(2*8)+(1*0)=64
64 % 10 = 4
So 94-80-4 is a valid CAS Registry Number.

94-80-4 Well-known Company Product Price

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  • Sigma-Aldrich

  • (45732)  2,4-D1-butylester  PESTANAL®, analytical standard

  • 94-80-4

  • 45732-250MG-R

  • 518.31CNY

  • Detail

94-80-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,4-D-butyl

1.2 Other means of identification

Product number -
Other names butyl (2,4-dichlorophenoxy)acetate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Herbicide
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:94-80-4 SDS

94-80-4Synthetic route

n-butyl bromoacetate
18991-98-5

n-butyl bromoacetate

2,4-dichlorophenol
120-83-2

2,4-dichlorophenol

Fernesta
94-80-4

Fernesta

Conditions
ConditionsYield
With potassium fluoride; potassium iodide In 1,2-dimethoxyethane at 120℃; for 24h;99.2%
butyl chloroacetate
590-02-3

butyl chloroacetate

2,4-dichlorophenol
120-83-2

2,4-dichlorophenol

Fernesta
94-80-4

Fernesta

Conditions
ConditionsYield
With potassium fluoride; potassium iodide at 120℃; for 24h;99%
Stage #1: 2,4-dichlorophenol With sodium hydroxide In toluene at 110℃; for 2h;
Stage #2: butyl chloroacetate at 110℃; for 1.5h;
97.9%
Stage #1: 2,4-dichlorophenol With potassium hydroxide In water at 90℃;
Stage #2: butyl chloroacetate With N,N-dimethyl-formamide In water at 150℃; for 0.5h; Reagent/catalyst; Temperature;
methyl 2,4-dichlorophenoxyacetate
1928-38-7

methyl 2,4-dichlorophenoxyacetate

butan-1-ol
71-36-3

butan-1-ol

Fernesta
94-80-4

Fernesta

Conditions
ConditionsYield
With SQD-65 at 80℃; for 4h;98.62%
butyl chloroacetate
590-02-3

butyl chloroacetate

sodium 2,4-dichlorophenolate
3757-76-4

sodium 2,4-dichlorophenolate

Fernesta
94-80-4

Fernesta

Conditions
ConditionsYield
for 3h;
for 4h; Large scale;
at 120℃; for 3h;
at 120℃; for 3h;
n-butyl bromoacetate
18991-98-5

n-butyl bromoacetate

sodium 2,4-dichlorophenolate
3757-76-4

sodium 2,4-dichlorophenolate

Fernesta
94-80-4

Fernesta

Conditions
ConditionsYield
for 3h;
Fernesta
94-80-4

Fernesta

2,4-Dichlorophenoxyacetic acid
94-75-7

2,4-Dichlorophenoxyacetic acid

Conditions
ConditionsYield
With water; sodium hydroxide for 0.5h; Reflux;99.3%
With toluene-4-sulfonic acid In water; butan-1-ol at 120℃; for 2h;99.3%
Stage #1: Fernesta With sodium hydroxide at 100℃; for 23h;
Stage #2: With sulfuric acid
2200 kg
oxirane
75-21-8

oxirane

Fernesta
94-80-4

Fernesta

trimethylamine
75-50-3

trimethylamine

2,4-dichlorophenoxyacetic acid choline

2,4-dichlorophenoxyacetic acid choline

Conditions
ConditionsYield
at 60℃; for 5h;
6-methylheptanol
1653-40-3

6-methylheptanol

Fernesta
94-80-4

Fernesta

2,4-dichlorophenoxyacetic acid isooctyl ester
3035-67-4

2,4-dichlorophenoxyacetic acid isooctyl ester

Conditions
ConditionsYield
With macroporous styrene strong basic anion exchange resin D201OH at 120℃; for 4h;330.87 g

94-80-4Relevant articles and documents

Synthesis method of substituted phenoxyacetate compound

-

Paragraph 0062; 0063; 0064, (2019/08/01)

The invention discloses a synthesis method of a substituted phenoxyacetate compound, relates to a synthesis method of a compound and aims to solve the problems that during current preparation of the substituted phenoxyacetate compound by a condensation method, a large amount of organic agent is consumed, substituted phenol is unlikely to react completely, the content of free phenol in three wastesis high and a very high environmental risk exists. According to the synthesis method, after the substituted phenol is mixed with haloacetate, a condensation reaction is performed in a potassium fluoride system condensing agent under the synergistic catalysis of a phase transfer catalyst and a halogenated hydrocarbon activator to obtain a substituted phenoxyacetic acid compound. The synthesis method is applied to the field of compound synthesis.

Preparation method of 2,4-dichlorophenoxyacetic acid and salt thereof

-

, (2019/01/06)

The invention provides a preparation method of 2,4-dichlorophenoxyacetic acid and a salt thereof, wherein the preparation method includes the following steps: S1) carrying out a reaction of phenol andchloracetic ester under alkaline conditions to obtain phenoxyacetic ester; S2) carrying out selective chlorination reaction of the phenoxyacetic ester with a chlorinating agent under the action of acatalyst A and a catalyst B to obtain 2,4-dichlorophenoxyacetic ester, wherein the catalyst A is Lewis acid, and the catalyst B is C5-22 thioethers, thiazoles, isothiazoles and thiophenes or halogenated derivatives thereof; and S3) carrying out hydrolysis reaction of 2,4-dichlorophenoxyacetic ester under acidic conditions to obtain 2,4-dichlorophenoxyacetic acid; or after 2,4-dichlorophenoxyaceticester is obtained, carrying out an alkaline hydrolysis reaction with an alkaline compound to obtain 2,4-dichlorophenoxyacetate. The production and use of 2,4-dichlorophenol with unpleasant odor are avoided, the production of dioxins is eliminated, the yield of products is improved, and the output of three wastes is greatly reduced.

Preparation method and application of composition of 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetate

-

Paragraph 0102; 0103, (2018/09/08)

The invention provides a preparation method for a composition of 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetate. The preparation method comprises the following steps: reacting halogenated acetate with 2,4-dichlorophenate so as to obtain 2,4-dichlorophenoxyacetate; and directionally hydrolyzing 2,4-dichlorophenoxyacetate prepared in the previous step to obtain the composition of 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetate. According to the invention, a process route is adjusted and creative improvement is made from the foundation; halogenated acetate reacts with2,4-dichlorophenate so as to prepare 2,4-dichlorophenoxyacetate, and directional hydrolysis is carried out so as to obtain the composition of 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetate. The composition of 2,4-dichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetate of the invention has excellent quality, high stability and good drug effect.

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