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8.05971

Sigma-Aldrich

4-Methoxybenzoic acid

for synthesis

Synonym(s):

4-Methoxybenzoic acid, p-Anisic acid

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About This Item

Empirical Formula (Hill Notation):
C8H8O3
CAS Number:
100-09-4
Molecular Weight:
152.15
MDL number:
MFCD00002542
UNSPSC Code:
12352106
EC Index Number:
202-818-5
NACRES:
NA.22

Quality Level

200

Assay

≥98.0% (HPLC)

form

powder

autoignition temp.

185 °C

potency

>5000 mg/kg LD50, oral (Rat)

pH

3-4 (20 °C, 0.3 g/L in H2O)

bp

277 °C/1013 hPa

mp

182-185 °C

solubility

0.3 g/L

bulk density

380 kg/m3

storage temp.

2-30°C

InChI

1S/C8H8O3/c1-11-7-4-2-6(3-5-7)8(9)10/h2-5H,1H3,(H,9,10)

InChI key

ZEYHEAKUIGZSGI-UHFFFAOYSA-N

Analysis Note

Assay (HPLC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 182 °C
Melting range (upper value): ≤ 185 °C
Identity (IR): passes test

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

365.0 °F - closed cup

Flash Point(C)

185 °C - closed cup

Certificates of Analysis (COA)

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