Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

8.05971

Sigma-Aldrich

4-Methoxybenzoic acid

for synthesis

Synonym(s):

4-Methoxybenzoic acid, p-Anisic acid

Sign Into View Organizational & Contract Pricing
All Photos(1)

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

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

365.0 °F - closed cup

flash_point_c

185 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service