Methyl 4-methylbenzoate | CAS No. 99-75-2

Q: What are the physical and chemical properties of Methyl 4-methylbenzoate (CAS: 99-75-2)?

Methyl 4-methylbenzoate (CAS: 99-75-2) is a colorless liquid with a fruity aroma. It has a molecular weight of 154.21 g/mol and a density of 1.068 g/cm³. It is slightly soluble in water but miscible with most organic solvents. Chemically, it is relatively stable but can react with strong bases to form benzoic acid and methyl alcohol.

Q: How is Methyl 4-methylbenzoate (CAS: 99-75-2) typically synthesized?

Methyl 4-methylbenzoate (CAS: 99-75-2) is commonly synthesized via the esterification of 4-methylbenzoic acid with methanol in the presence of a catalyst such as concentrated sulfuric acid. The reaction is carried out at elevated temperatures, typically around 80°C, with a yield of about 85-90%.

Q: What industries use Methyl 4-methylbenzoate (CAS: 99-75-2)?

Methyl 4-methylbenzoate (CAS: 99-75-2) is used in the fragrance and flavor industry as a raw material for perfumes and flavors. It is also utilized in the pharmaceutical industry as a precursor for the synthesis of certain drugs. Additionally, it finds applications in the food, cosmetic, and chemical industries.

Q: What precautions should be taken when handling Methyl 4-methylbenzoate (CAS: 99-75-2)?

When handling Methyl 4-methylbenzoate (CAS: 99-75-2), it is essential to use appropriate Personal Protective Equipment (PPE), including gloves, goggles, and a lab coat. Work should be performed in a well-ventilated area or a fume hood. Spills should be cleaned up immediately using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed handling and storage instructions.

Methyl 4-methylbenzoate

Basic Information

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CAS Number

99-75-2

Molecular Formula

C9H10O2

Molecular Weight

150.18 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Esters

Basic Chemical Raw Materials Organic Chemicals Ethers

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

32-35 °C

Boiling Point

103-104 °C/15 mmHg

Density

1.06

Water Solubility

<0.1 g/100 mL at 22 ºC

Refractive Index

1.5002 (estimate)

Vapor Pressure

1 mmHg ( 39 °C)

SMILES

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COC(=O)c1ccc(C)cc1

InChI

InChI=1S/C9H10O2/c1-7-3-5-8(6-4-7)9(10)11-2/h3-6H,1-2H3

InChIKey

QSSJZLPUHJDYKF-UHFFFAOYSA-N

LogP

1.78162

Topological Polar Surface Area

26.3 Å²

Hydrogen Bond Donor/Acceptor

0 / 2

Complexity

135

Safety Information

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GHS Hazard Pictograms

H315

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

Explosive Limit

1-9.5%(V)

Synonyms & References

English

Methyl 4-methylbenzoate
p-Toluic acid methyl ester
Methyl p-toluate
Methyl p-methylbenzoate
Methyl-p-methyl benzoate
Methyl-p-toluate
4-Me-C6H4-CO2Me
4-methyl-benzoic acid methyl ester
4-Methyl-N-isopropylbenzamid
methyl 4-methyl-benzoate
N-Isopropyl-4-methylbenzamide
N-Isopropyl-p-toluamid
N-Isopropyl-p-toluamide
p-Methyl toluate
p-Methylbenzoic acid Methyl ester
p-toluic acid isopropylamide
4-Methylbenzoic Acid Methyl Ester
p-Carbomethoxytoluene
Benzoic acid, 4-methyl-, methyl ester
Methyl 4-toluate
4-(Methoxycarbonyl)toluene
p-Toluic acid, methyl ester
Methyl p-toluenecarboxylate
p(Methoxycarbonyl)toluene
METHYL PARA TOLUATE
964JP0ZZRG
QSSJZLPUHJDYKF-UHFFFAOYSA-N
4-met
Methyl 4-Methylbenzoate
p-Toluic Acid Methyl Ester
4-Methylbenzoic acid methyl ester

MDL Number

MFCD00008441

Customs Code

2916399090

FAQ

What are the physical and chemical properties of Methyl 4-methylbenzoate (CAS: 99-75-2)?

Methyl 4-methylbenzoate (CAS: 99-75-2) is a colorless liquid with a fruity aroma. It has a molecular weight of 154.21 g/mol and a density of 1.068 g/cm³. It is slightly soluble in water but miscible with most organic solvents. Chemically, it is relatively stable but can react with strong bases to form benzoic acid and methyl alcohol.

How is Methyl 4-methylbenzoate (CAS: 99-75-2) typically synthesized?

Methyl 4-methylbenzoate (CAS: 99-75-2) is commonly synthesized via the esterification of 4-methylbenzoic acid with methanol in the presence of a catalyst such as concentrated sulfuric acid. The reaction is carried out at elevated temperatures, typically around 80°C, with a yield of about 85-90%.

What industries use Methyl 4-methylbenzoate (CAS: 99-75-2)?

Methyl 4-methylbenzoate (CAS: 99-75-2) is used in the fragrance and flavor industry as a raw material for perfumes and flavors. It is also utilized in the pharmaceutical industry as a precursor for the synthesis of certain drugs. Additionally, it finds applications in the food, cosmetic, and chemical industries.

What precautions should be taken when handling Methyl 4-methylbenzoate (CAS: 99-75-2)?

When handling Methyl 4-methylbenzoate (CAS: 99-75-2), it is essential to use appropriate Personal Protective Equipment (PPE), including gloves, goggles, and a lab coat. Work should be performed in a well-ventilated area or a fume hood. Spills should be cleaned up immediately using appropriate absorbent materials. Always refer to the Safety Data Sheet (SDS) for detailed handling and storage instructions.