Skip to Content
MilliporeSigma
All Photos(1)

Documents

8.00235

Sigma-Aldrich

Cinnamic acid

for synthesis

Sign Into View Organizational & Contract Pricing

Synonym(s):
Cinnamic acid
Linear Formula:
C6H5CH=CHCOOH
CAS Number:
Molecular Weight:
148.16
MDL number:
UNSPSC Code:
12352106
EC Index Number:
205-398-1
NACRES:
NA.22

vapor pressure

1.3 hPa ( 128 °C)

Quality Level

assay

≥99.0% (HPLC)

form

powder

potency

2500 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rabbit)

pH

3-4 (20 °C, 0.4 g/L in H2O)

bp

300 °C/1013 hPa

mp

132-136 °C

transition temp

flash point 160 °C

solubility

0.4 g/L

density

1.25 g/cm3 at 4 °C

bulk density

500 kg/m3

storage temp.

no temp limit

InChI

1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)/b7-6+

InChI key

WBYWAXJHAXSJNI-VOTSOKGWSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

  • Biodegradable polymer enhancements: A study investigated the biodegradability of chitosan films modified with cinnamic acid and ellagic acid, highlighting improvements in environmental degradation rates, which could be beneficial in packaging and agricultural applications (Michalska-Sionkowska et al., 2024).
  • Enzymatic studies in alkaloid biosynthesis: Research on the enzymes cinnamate 4-hydroxylase (CYP73A) and p-coumaroyl 3′-hydroxylase (CYP98A) from Leucojum aestivum explored their roles in the biosynthesis of Amaryllidaceae alkaloids, emphasizing cinnamic acid′s importance in metabolic pathways essential for pharmaceutical applications (Desgagné-Penix et al., 2024).
  • Quality evaluation in traditional medicine: A metabolomics approach was used to assess the quality of Scrophularia ningpoensis hemsl by identifying biomarkers, including cinnamic acid derivatives, thus providing a method for quality control in herbal medicine production (Lu et al., 2024).

Analysis Note

Assay (HPLC, area%): ≥ 99.0 % (a/a)
Melting range (lower value): ≥ 132 °C
Melting range (upper value): ≤ 136 °C
Identity (IR): passes test

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

wgk_germany

WGK 1

flash_point_f

closed cup

flash_point_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