58138-52-6

Basic information

• Product Name: 4,5-dimethylsalicylic acid
• Synonyms: 4,5-dimethylsalicylic acid;2-HYDROXY-4,5-DIMETHYL-BENZOIC ACID
• CAS NO: 58138-52-6
• Molecular Formula: C₉H₁₀O₃
• Molecular Weight: 166.1739
• EINECS: 261-140-8
• Mol File: 58138-52-6.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 329.6°C at 760 mmHg
• Flash Point: 167.4°C
• Appearance: /
• Density: 1.249g/cm³
• Vapor Pressure: 7.04E-05mmHg at 25°C
• Refractive Index: 1.587
• CAS DataBase Reference: 4,5-dimethylsalicylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-dimethylsalicylic acid(58138-52-6)
• EPA Substance Registry System: 4,5-dimethylsalicylic acid(58138-52-6)

Safety Data

• Statements: 36
• Safety Statements: 26
• Hazardous Substances Data: 58138-52-6(Hazardous Substances Data)

Usage

Uses

2-Hydroxy-4,5-dimethylbenzoic Acid is a key intermediate used in the preparation of 4,5-Dimethylaspirin with antipyretic and analgesic activities like aspirin.

InChI:InChI=1/C9H10O3/c1-5-3-7(9(11)12)8(10)4-6(5)2/h3-4,10H,1-2H3,(H,11,12)

Upstream product

• 95-65-8 3,4-Dimethylphenol 
• 558-13-4 carbon tetrabromide 
• 56-23-5 tetrachloromethane 
• 496-78-6 2,4,5-trimethylphenol 
• 619-04-5 3,4-dimethylbenzoic acid 
• 91969-74-3 2'-methoxy-4',5'-dimethylacetophenone 
• 22618-23-1 3,4-dimethylphenyl acetate 
• 36436-65-4 2-acetyl-4,5-dimethylphenol 
• 3453-84-7 2,4,5-trimethylbenzenesulfonic acid 
• 71321-29-4 2-Hydroxy-2-(2-hydroxy-4,5-dimethyl-phenyl)-indan-1,3-dione 
• 91061-36-8 2-methoxy-4,5-dimethylbenzoic acid 
• 95646-19-8 3-(2-Hydroxy-4,5-dimethyl-benzoyl)-2-p-tolyl-2,3-dihydro-isoindol-1-one 
• 1666-03-1 4,5-dimethylsalicylaldehyde 

Downstream Products

• 14387-03-2 2-acetoxy-4,5-dimethyl-benzoic acid 
• 57536-07-9 2-hydroxy-4,5-dimethyl-benzoic acid phenyl ester 
• 132757-93-8 methyl 2-hydroxy-4,5-dimethylbenzoate 
• 95-65-8 3,4-Dimethylphenol 
• 124-38-9 carbon dioxide 
• 725227-56-5 2-bromo-3,4-dimethyl-anisole 
• 5628-64-8 6-methoxy-2,3-dimethyl-benzoic acid 
• 32337-83-0 2-bromo-3,4-dimethylphenol 
• 14387-04-3 2-acetoxy-4,5-dimethyl-benzoic acid methyl ester 

Relevant articles and documents

Palladium-catalyzed ortho-C-H hydroxylation of benzoic acids

A simple Pd(OAc)2 catalyzed ortho-hydroxylation of benzoic acids using TBHP as the sole oxidant has been explored. This protocol features relatively broad substrate scope and operational simplicity. The compatibility of ortho-substituted substrates is an effective complement to the previous ortho-hydroxylation reaction.

Pd(II)-catalyzed hydroxylation of arenes with 1 atm of O2 or air

(Chemical Equation Presented) Pd(II)-catalyzed ortho-hydroxylation of variously substituted benzoic acids under 1 atm of O2 or air is achieved under nonacidic conditions. Extensive labeling studies support a direct oxygenation of aryl C-H bonds with molecular oxygen.

A new and mild synthesis of substituted salicylic acids

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