trans-Cinnamic acid

Basic Information

View in Editor

CAS Number

140-10-3

Molecular Formula

C9H8O2

Molecular Weight

148.16 g/mol

EINECS

205-398-1

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Physical State

Powder

Melting Point

132-135 °C

Boiling Point

300 °C

Density

1.248

Water Solubility

0.4 g/L (20 ºC)

Solubility

0.4g/l

Refractive Index

1.5049 (estimate)

Vapor Pressure

3.21e-05 mmHg

Odor

Weak odor

SMILES

View in Editor

OC(=O)/C=C/c1ccccc1

InChI

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

InChIKey

WBYWAXJHAXSJNI-VOTSOKGWSA-N

LogP

1.7844

pKa

4.44(at 25℃)

Topological Polar Surface Area

37.3 Å²

Hydrogen Bond Donor/Acceptor

1 / 2

Complexity

155

Safety Information

View Safety Information

GHS Hazard Pictograms

H315

H319

H335

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Storage Conditions

2-8℃

Stability

Photoactive

Sensitiveness

Sensitive to humidity

Toxicity

LD50 orally in Rabbit: 2500 mg/kg LD50 dermal Rabbit > 5000 mg/kg

RTECS

GD7850000

Synonyms & References

English

trans-Cinnamic acid
trans-3-Phenylacrylic acid
trans-3-Phenyl-2-propenoic acid
(2E)-3-phenylprop-2-enoic acid
trans-Cinnamic Acid Zone Refined (number of passes:40)
(2E)-3-Phenyl-2-prop
(2E)-3-Phenyl-2-propenoic Acid
Cinnamic acid
CINNAMIC ACID, TRANS-(AS)
(2E)-3-Phenylacrylic acid
3-Phenyl-2-propenoic acid
Benzalacetic acid
Cinnamyl acid
MS]
trans-3-Phenylacrylic acid,Cinnamic acid
β-Phenylacrylic acid
trans-3-Phenylacrylic Acid Zone Refined (number of passes:40)
[ "" ]
Zimtsαure
FEMA 2288
AKOS 233-01
AKOS B004228
(E)-Zimtsαure
Cinnamin acid
Cassia powdcr
trans-cinnamic
CinnamicAcidGr
(e)-cinnamicaci
(E)-Cinnamic acid
3-Phenylacrylic acid
Phenylacrylic acid

MDL Number

MFCD00004369

EC Number

205-398-1

Customs Code

29163900

FAQ

What is trans-Cinnamic acid (CAS: 140-10-3)?

Trans-Cinnamic acid is an organic compound with the chemical formula C9H10O2. It is a naturally occurring aromatic carboxylic acid, commonly found in plants such as cinnamon. It has a melting point of around 134–136°C and is known for its characteristic aromatic odor and ability to form esters and other derivatives.

What are the main uses of trans-Cinnamic acid (CAS: 140-10-3)?

Trans-Cinnamic acid is widely used in the fragrance and flavor industries due to its pleasant aroma. It serves as a precursor in the synthesis of various pharmaceuticals, including drugs for diabetes and antihistamines. It is also used in research for its antioxidant and anti-inflammatory properties, and in the production of food additives and polymer materials.

Is trans-Cinnamic acid (CAS: 140-10-3) safe?

Trans-Cinnamic acid is generally considered safe when used in appropriate amounts and under proper handling conditions. It has low toxicity and is not classified as a carcinogen. However, prolonged exposure or ingestion may cause skin irritation. Safety data sheets (SDS) should be consulted for detailed handling and exposure guidelines.

How should trans-Cinnamic acid (CAS: 140-10-3) be stored?

Trans-Cinnamic acid should be stored in a cool, dry, and well-ventilated place, away from direct sunlight and sources of heat. It is stable under normal storage conditions but should be kept in a sealed container to prevent moisture absorption and contamination. Proper labeling and storage according to safety regulations are essential.