(3,4-Dichlorophenoxy)acetic acid
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(3,4-Dichlorophenoxy)acetic acid
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CAS No:
588-22-7
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Formula:
C8H6Cl2O3
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Chemical Name:
(3,4-Dichlorophenoxy)acetic acid
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Synonyms:
Acetic acid,2-(3,4-dichlorophenoxy)-;Acetic acid,(3,4-dichlorophenoxy)-;2-(3,4-Dichlorophenoxy)acetic acid;3,4-D;3,4-DA;(3,4-Dichlorophenoxy)acetic acid;NSC 39017;NSC 525057
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CAS No:
Description
ChEBI: A chlorophenoxyacetic acid that is phenoxyacetic acid in which the hydrogens at positions 3 and 4 of the phenyl group are replaced by chlorines.
3,4-dichlorophenoxyacetic acid is a chlorophenoxyacetic acid that is phenoxyacetic acid in which the hydrogens at positions 3 and 4 of the phenyl group are replaced by chlorines. It has a role as a phenoxy herbicide.
(3,4-Dichlorophenoxy)acetic acid Basic Attributes
221.04
221.04
209-612-4
525057|39017
DTXSID70207524
2918990090
Characteristics
46.5
2.8
White Crystalline Powder
1.5±0.1 g/cm3
139 °C
351.4°C at 760 mmHg
2 °C
1.573
457.6mg/L(25 ºC)
APPROX 4°C
Combustion produces toxic chloride gas
Safety Information
III
6.1(b)
2811
3
36/37/38-36-20/21/22-11
26-37/39-36-16
AG6830000
Xi,Xn,F
The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials
P261-P280-P305 + P351 + P338
H315-H317-H319-H335
|Warning|H302 (15.56%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P272, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, and P501|Aggregated GHS information provided by 45 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
(3,4-Dichlorophenoxy)acetic acid Use and Manufacturing
General procedure: To a stirred solution of 4j (2.5 g, 9.8 mmol) in MeOH (30 mL) was added 3N NaOH solution (13.1 mL, 39.3 mmol). After being stirred at room temperature for 1 h, the mixture was diluted with water (100 mL), acidified with 3N HCl, and extracted with dichloromethane (100 mL × 2). The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo to give the title compound (2.12 g, 97percent yield) . 1H NMR (300MHz, DMSO-d6) δ 7.49(d, J = 8.8 Hz, 1H), 7.21 (s, 1H), 6.92 (d, J = 8.8 Hz, 1H), 4.73 (s, 2H).To a solution of ethyl 2-(3, 4-dichlorophenoxy) acetate (1 .5g 6.04mmol, 1 equiv) in THF (15 mL), water (5 mL) at 0 °C was added UOH.H20 (0.62 g, 15.1 mmol 2.5 equiv) and the reaction mixture was stirred at room temperature for 1 h. After consumption of the starting material (TLC, 5 percent Methanol in DCM), THF was removed under vacuum and the reaction mixture was diluted with water (10 mL) followed by extraction with Et
Computed Properties
Molecular Weight:221.03
XLogP3:2.8
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:3
Exact Mass:219.9693994
Monoisotopic Mass:219.9693994
Topological Polar Surface Area:46.5
Heavy Atom Count:13
Complexity:186
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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Latest News on (3,4-Dichlorophenoxy)acetic acid
- AI innovation: Bayer and Syngenta are using AI to develop next-generation herbicides
- Generics dominate the top 20 pesticides by sales worldwide, with $70.2 billion in 2022
- The U.S. EPA adjusted the concentration limit for Atrazine to 9.7µg/L for aquatic organisms
- The USITC continues to push for anti-dumping duties on 2,4-D herbicides from China and India
- 2024 Central Plains (Handan) Modern Agriculture Expo and agricultural materials trading Conference will be held in August
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(3,4-Dichlorophenoxy)acetic acid
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