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Key Documents

8.21903

Sigma-Aldrich

4-Methylbenzoic acid

for synthesis

Synonym(s):

4-Methylbenzoic acid, p-Toluic acid

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About This Item

Linear Formula:
4-(CH3)C6H4COOH
CAS Number:
99-94-5
Molecular Weight:
136.15
MDL number:
MFCD00002565
UNSPSC Code:
12352106
EC Index Number:
202-803-3

vapor pressure

0.02 hPa ( 70 °C)

Quality Level

200

Assay

≥98.0% (HPLC)

form

powder

autoignition temp.

570 °C

potency

400 mg/kg LD50, oral (Rat)

bp

274 °C/1013 hPa

mp

179-181 °C

transition temp

flash point 181 °C

solubility

0.3 g/L

density

1.06 g/cm3 at 20 °C

bulk density

700 kg/m3

storage temp.

2-30°C

InChI

1S/C8H8O2/c1-6-2-4-7(5-3-6)8(9)10/h2-5H,1H3,(H,9,10)

InChI key

LPNBBFKOUUSUDB-UHFFFAOYSA-N

Related Categories

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 179 °C
Melting range (upper value): ≤ 182 °C
Identity (IR): passes test

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317

Hazard Classifications

Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

357.8 °F

Flash Point(C)

181 °C

Certificates of Analysis (COA)

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