89300-29-8

Basic information

• Product Name: DICAMBA, [RING-14C(U)]
• Synonyms: DICAMBA, [RING-14C(U)];3,6-Dichloro-2-methoxybenzoic acid, Dicamba-ring-ul-14C;Dicamba-(ring-UL-14C)
• CAS NO: 89300-29-8
• Molecular Formula: C8H6Cl2O3
• Molecular Weight: 233.15
• Mol File: 89300-29-8.mol
• Article Data: 37

Chemical Properties

• Appearance: /
• Storage Temp.: 2-8°C
• CAS DataBase Reference: DICAMBA, [RING-14C(U)](CAS DataBase Reference)
• NIST Chemistry Reference: DICAMBA, [RING-14C(U)](89300-29-8)
• EPA Substance Registry System: DICAMBA, [RING-14C(U)](89300-29-8)

Safety Data

• Hazard Codes: F,T
• Statements: 11-23/24/25-36/37/38
• Safety Statements: 16-26-36/37/39-45
• RIDADR: UN 2910 7
• Hazardous Substances Data: 89300-29-8(Hazardous Substances Data)

Upstream product

• 27164-08-5 2-methoxy-3,6-dichlorobenzaldehyde 
• 74-87-3 methylene chloride 
• 108-88-3 toluene 
• 95-46-5 2-methylphenyl bromide 
• 124-41-4 sodium methylate 
• 65-85-0 benzoic acid 
• 106-46-7 para-dichlorobenzene 
• 2200-85-3 5-bromo-3-chloro-2-hydroxybenzoic acid 
• 69-72-7 salicylic acid 
• 89-55-4 5-bromosalicyclic acid 
• 120-82-1 1,2,4-Trichlorobenzene 
• 3401-80-7 3,6-dichloro-2-hydroxybenzoic acid 
• 77-78-1 dimethyl sulfate 
• 95-82-9 2,5 dichloroaniline 

Downstream Products

• 1430102-88-7 dicamba phthalhydrazide diester 
• 1918-00-9 3,6-dichloro-2-methoxybenzoate sodium salt 
• 1354726-19-4 trimethyltetradecylammonium 3,6-dichloro-2-methoxybenzoate 
• 1431852-91-3 C₈H₆Cl₂O₃*C₁₀H₁₀N₂ 

Relevant articles and documents

A new process to prepare 3,6-dichloro-2-hydroxybenzoic acid, the penultimate intermediate in the synthesis of herbicide dicamba

Glyphosate [N-(phosphonomethyl)glycine] is a broad spectrum, post-emergent herbicide that is among the most widely used agrochemicals globally. Over the past 30 years, there has been a development of glyphosate-resistant weeds, which pose a significant challenge to growers and crop scientists, resulting in lower crop yields and increased costs. 3,6-Dichloro-2-methoxybenzoic acid (dicamba) is the active ingredient in XtendiMax a standalone herbicide developed by Bayer Crop Science to control broadleaf weeds, including glyphosate-resistant species. 3,6-Dichloro-2-hydroxybenzoic acid (3,6-DCSA) is the penultimate intermediate in the synthesis of dicamba. Existing dicamba manufacturing routes utilize a high temperature, high pressure Kolbe-Schmitt carboxylation to prepare 3,6-DCSA. Described in this Letter is a new, non-Kolbe-Schmitt process to prepare 3,6-DCSA from salicylic acid in four chemical steps.

Selective removing method of benzene ring hydroxyl para-bromine and preparation method of dicamba

The invention provides a selective removing method of benzene ring hydroxyl para-bromine. The method comprises following steps: a compound represented as formula (I) in the description is subjected toa reaction under the alkaline condition and the action of metal powder to remove hydroxyl para-bromine ions, and a compound represented as formula (II) in the description is obtained. The benzene ring hydroxyl para-bromine ions are selectively removed under the alkaline condition and the action of the metal powder, the reaction has higher selectivity, conversion rate and reaction rate are high, and a prepared product has higher purity.

A catalytic oxidation of the synthesis of the herbicide dicamba 2 - methoxy - 3, 6 - II [...] method

The invention relates to a method for synthetizing a herbicide-dicamba (2-methoxy-3,6-dichloro-salicylic acid) through catalytic oxidation. The method is characterized in that the dicamba is obtained through oxidation of air, oxygen or ozone by taking 2-substituent 3,6-banair as a raw material and adopting a composite catalyst. The method disclosed by the invention has the advantages that the operation is simple, the raw material is easy to obtain, the cost is low, the catalyst can be recycled, and the method is more environment-friendly and is more suitable for industrial production.