220899-03-6

Basic information

• Product Name: METRAFENONE
• Synonyms: (3-Brom-6-methoxy-2-methylphenyl)(2,3,4-trimethoxy-6-methylphenyl)methanon; (3-Bromo-6-methoxy-2-methylphenyl)(2,3,4-trimethoxy-6-methylphenyl)methanone; Metrafenone; 3'-Bromo-2,3,4,6'-tetramethoxy-2',6-dimethylbenzophenone; (3-Bromo-6-methoxy-2-methylphenyl)(2,3,4-trimethoxy-6-methylphenyl)-methanone
• CAS NO: 220899-03-6
• Molecular Formula: C₁₉H₂₁BrO₅
• Molecular Weight: 409.274
• Mol File: 220899-03-6.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 534.4°C at 760 mmHg
• Flash Point: 277°C
• Appearance: /
• Density: 1.31g/cm³
• Vapor Pressure: 1.7E-11mmHg at 25°C
• Refractive Index: 1.554
• CAS DataBase Reference: METRAFENONE(CAS DataBase Reference)
• NIST Chemistry Reference: METRAFENONE(220899-03-6)
• EPA Substance Registry System: METRAFENONE(220899-03-6)

Safety Data

• Hazard Codes: N
• Statements: 50/53
• Safety Statements: 60-61
• RIDADR: UN 3077 9 / PGIII
• WGK Germany: 3
• Hazardous Substances Data: 220899-03-6(Hazardous Substances Data)

Usage

Description

Metrafenone is a member of the benzophenone class, specifically a derivative where one phenyl group is substituted by methoxy groups at positions 2, 3, and 4, and by a methyl group at position 6. The other phenyl group is substituted at positions 2, 3, and 6 by methyl, romine, and methoxy groups, respectively. It is a fungicide characterized by its protectant and curative properties.

Uses

Used in Agriculture:
Metrafenone is used as a fungicide in pesticide formulations for the protection of vegetation and crops. It is particularly effective in controlling powdery mildew in cereals and grapevines, ensuring the health and productivity of these plants.

InChI:InChI=1/C19H21BrO5/c1-10-9-14(23-4)18(24-5)19(25-6)15(10)17(21)16-11(2)12(20)7-8-13(16)22-3/h7-9H,1-6H3

Upstream product

• 6443-69-2 3,4,5-trimethoxytoluene 
• 220901-25-7 3-bromo-6-methoxy-2-methylbenzoic acid 
• 6520-83-8 ethyl 2-methoxy-6-methylbenzoate 
• 15219-34-8 Oxalyl bromide 

Relevant articles and documents

A NOVEL FORM OF METRAFENONE, A PROCESS FOR ITS PREPARATION AND USE OF THE SAME

A crystalline modification I of (3-bromo-6-methoxy-2-methylphenyl) (2, 3, 4-trimethoxy-6-methylphenyl) methanone (metrafenone) is provided. A method of preparing the crystalline modification I, a composition comprising the crystalline modification I and its use in controlling fungal infestations are also provided.

Synergistic Active Compound Combinations Comprising Phenyltriazoles

The present invention relates to novel active compound combinations comprising, firstly, at least one known compound of the formula (I) in which R1 and R2 have the meanings given in the description. and at least one further known active compound from groups (2) to (27) listed in the description, which combinations are highly suitable for controlling animal pests such as insects and unwanted acarids and also phytopathogenic fungi.

Fungicidal combinations

The invention relates to a method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount of a combination of a) a benzophenone of formula I wherein R1 is methoxy or methyl, R2 is C1-C4alkoxy or 2-halogenbenzyloxy, R3 is C1-C4alkoxy, R4 is C1-C4alkyl, halogen or trifluoromethyl, and R5 is hydrogen, halogen, C1-C4alkoxy, trifluoromethyl or nitro; in association with b) a compound selected from the group comprising compounds of formulae II, III, IV, V, VI, VII, VIII, IX, X and XI as described herein.