Methyl 4-methylbenzoate (HCID 7455)

Overview

Opaque colorless to white shiny crystalline solid. Intense unpleasant odor. (NTP, 1992)

Names & identifiers

Preferred name: Methyl 4-methylbenzoate
IUPAC: methyl 4-methylbenzoate
English name: Methyl p-toluate
Molecular formula: C9H10O2
Molecular weight: 150.1745

Names & synonyms

METHYL 4-METHYLBENZOATEMethyl p-toluate99-75-2Methyl-p-toluateMethyl 4-toluate4-Methylbenzoic acid methyl esterMethyl p-methylbenzoatep-CarbomethoxytolueneBenzoic acid, 4-methyl-, methyl esterp-Toluic acid, methyl esterMethyl p-toluenecarboxylatep(Methoxycarbonyl)toluene

Show more names

NSC 24761CCRIS 6071DTXSID4025668HSDB 5327EINECS 202-784-1964JP0ZZRGNSC-24761BRN 1100609

Database identifiers

CAS: 99-75-2
PubChem CID: 7455
DTXSID: DTXSID4025668
ChEMBL: CHEMBL1480173
UNII: 964JP0ZZRG
EC Number: 202-784-1
Nikkaji: J45.106A

Properties

Computed structural properties

XLogP: 2.7
Topological polar surface area: 26.3 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 2
Rotatable bonds: 2
Heavy atoms: 11
Formal charge: 0
Complexity: 134

Experimental & physicochemical properties

Chemical ClassesOther Classes -> Benzoic Acid Derivatives

SpringerMaterials Properties13C nuclear magnetic resonance spectrum

FragrancesFragrance Ingredient (Methyl p-methylbenzoate) -> IFRA transparency List

LogP2.7

Density · 2 items

1.058 at 77 °F (NTP, 1992) - Denser than water; will sink

1.058 @ 25 °C/15.6 °C

Flavoring AgentsEU Flavoring substances

Physicochemical properties

Melting point: 33.2 °C · 33.2 °C
Boiling point: 222.5 °C · 222.5 °C
Density: 1.058 g/cm3 · 1.058 g/cm3(Temp: 25 °C)

Safety & regulation

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 7.2% (12 of 166) of reports.

Warning

H315 (92.8%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 166 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 4 items

Chemical: Benzoic acid, 4-methyl-, methyl ester

Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)

Status: Active Update: 22-04-2015 https://echa.europa.eu/registration-dossier/-/registered-dossier/5309

Benzoic acid, 4-methyl-, methyl ester: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - Benzoic acid, 4-methyl-, methyl ester: Environment tier I assessment

Fire HazardsThis chemical is combustible. (NTP, 1992)

Hazards SummaryMay cause irritation; [MSDSonline]

Reactive GroupEsters, Sulfate Esters, Phosphate Esters, Thiophosphate Esters, and Borate Esters

Special ReportsA REVIEW WITH 13 REFERENCES ON TOXICITY, INHALATION, IRRITATION AND SENSITIZATION.[OPDYKE DL J; MONOGRAPHS ON FRAGRANCE RAW MATERIALS. METHYL P-TOLUATE; FOOD COSMET TOXICOL 17(SUPPL) 873 (1979)]

Safety & protection

Fire FightingFires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. (NTP, 1992)

First Aid · 1 item

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Nonfire Spill Response · 1 item

SMALL SPILLS AND LEAKAGE: Should a spill occur while you are handling this chemical, FIRST REMOVE ALL SOURCES OF IGNITION, then you should dampen the solid spill material with 60-70% ethanol and transfer the dampened material to a suitable container. Use absorbent paper dampened with 60-70% ethanol to pick up any remaining material. Seal the absorbent paper, and any of your clothes, which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Personal Protective Equipment (PPE) · 1 item

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

Toxicology

Toxicity DataLC50 (mice) = 40-70 mg/m3

Chemistry & industry

Uses & manufacturing

Uses · 4 items

Used in organic synthesis and as a fragrance for consumer products; [HSDB]

ORGANIC SYNTHESIS

UNISOLATED CHEM INT FOR MFR OF DIMETHYL TEREPHTHALATE

FRAGRANCE, EG, FOR PERFUMES, SOAPS, DETERGENTS & CREAMS

U.S. Exports · 2 items

(1979) No Data

(1981) No Data

U.S. Imports · 2 items

(1979) No Data

(1981) No Data

U.S. Production · 2 items

(1979) PROBABLY GREATER THAN 2.27X10+6 GRAMS

(1982) PROBABLY GREATER THAN 2.27X10+6 GRAMS

Methods of ManufacturingPRODUCED AS AN ISOLATED OR RECYCLED BYPRODUCT OF DIMETHYL TEREPHTHALATE MFR BY OXIDATION OF P-XYLENE & ESTERIFICATION OF METHYL ALCOHOL

Use ClassificationFragrance Ingredients