Testing Information

Testing Status of Agents at NTP

CAS Registry Number: 104-55-2

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http://ntp.niehs.nih.gov/go/27447

Selected information from two of the National Library of Medicine's databases: ChemIDPlus1 and HSDB2.

Names (NTP)

  • Cinnamaldehyde
  • 3-PHENYL-2-PROPENAL (9CI)
  • CINNAMIC ALDEHYDE

Structure

Chemical Structure for CAS Registry Number 104-55-2 from NLM

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Chemical Properties2

Property Description
Color/Form
  • YELLOWISH OILY LIQUID
  • GREENISH-YELLOW LIQUID
Odor
  • PUNGENT, SPICY NOTE
  • STRONG ODOR OF CINNAMON
Taste
  • BURNING TASTE
  • SWEET TASTE
Boiling Point
  • 253 DEG C @ 760 MM HG (SLIGHT DECOMP)
Melting Point
  • -7.5 DEG C
Molecular Weight
  • 132.15 **PEER REVIEWED**
Corrosivity
  • None found
Critical Temperature & Pressure
  • None found
Density/Specific Gravity
  • 1.048-1.052 @ 25 DEG C/25 DEG C
Disassociation Constants
  • None found
Heat of Combustion
  • None found
Heat of Vaporization
  • None found
log P (octanol-water)
  • 1.90
pH
  • None found
Solubilities
  • DISSOLVES IN ABOUT 700 PARTS WATER
  • SOL IN ETHER, CHLOROFORM; INSOL IN PETROLEUM ETHER
  • MISCIBLE WITH ALCOHOL, OILS
  • SOLUBILITY: 1:5 IN 60%, 1:25 IN 50%, 1:2.5 IN 70% ALC
  • water solubility = 1.42X10+3 mg/l at 25 deg C
Spectral Properties
  • MAX ABSORPTION (ALCOHOL): 291 NM (LOG E= 4.40)
  • SADTLER REF NUMBER: 1490 (IR, PRISM)
  • INDEX OF REFRACTION: 1.618-1.623 @ 20 DEG C/D
  • IR: 18891 (Sadtler Research Laboratories IR Grating Collection)
  • UV: 424 (Sadtler Research Laboratories Spectral Collection)
  • NMR: 101 (Sadtler Research Laboratories Spectral Collection)
  • MASS: 622 (Atlas of Mass Spectral Data, John Wiley & Sons, New York)
Surface Tension
  • None found
Vapor Density
  • VAPOR DENSITY: 4.6 (AIR= 1)
Vapor Pressure
  • 1 MM HG @ 76 DEG C
Relative Evaporation Rate
  • None found
Viscosity
  • None found
Other Properties
  • THICKENS ON EXPOSURE TO AIR
  • ACID VALUE: 5 MAXIMUM
  • SOLIDIFIES @ -7.5 DEG C
  • CONVERSION FACTORS: 1 MG/L= 185 PPM, 1 PPM= 5.4 MG/CU M

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Uses2

  • FOOD CHEM TO IMPART CINNAMON FLAVOR TO FOODS, BEVERAGES; PERFUME CHEM; FOOD CHEM; FILTERING AGENT; CINNAMON FLAVORING AGENT IN MEDICINALS, LIQUORS & CORDIALS; RUBBER REINFORCING AGENT **PEER REVIEWED**
  • It is used for the preparation of corrosion inhibitors, as a polymerization inhibitor for conjugated dienes, and for the coating of metals. Partial hydrogenation or oxidation of cinnamaldehyde give 3-phenylpropanal or cinnamic acid, respectively.
  • Attractant in insect control
  • /IT IS USED IN/ NON-ALCOHOLIC BEVERAGES 9.0 PPM, ICE CREAM, ICES, ETC 7.7 PPM, CANDY 700 PPM, BAKED GOODS 180 PPM, CHEWING GUM 4,900 PPM, CONDIMENTS 20 PPM, MEATS 60 PPM.

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Superlist Classes1

  • None found

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Notes (Sources: NTP,HSDB,RTECS,MESH)1

  • None found

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Other Registry Numbers1

  • None found

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Synonyms (Sources: NTP, HSDB,RTECS,MESH)1

  • 2-07-00-00273 (Beilstein Handbook Reference)
  • Abion CA
  • Acrolein, 3-phenyl-
  • Benzylideneacetaldehyde
  • BRN 0605737
  • Cassia aldehyde
  • Cinnamal
  • Cinnamic aldehyde
  • Cinnamyl aldehyde
  • FEMA Number 2286
  • HSDB 209
  • NCI-C56111
  • Phenylacrolein
  • 3-Phenylacrolein
  • 3-Phenylacrylaldehyde
  • beta-Phenylcrolein
  • 3-Phenylpropenal
  • 3-Phenyl-2-propenal
  • 3-Phenyl-2-propenaldehyde
  • 2-Propenal, 3-phenyl-
  • Zimtaldehyde

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Links to Additional Information1

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Footnotes

1 Source: the National Library of Medicine's ChemIDPlus, 10/28/2007.

2 Source: the National Library of Medicine's Hazardous Substance Database, 10/28/2007.

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Web page last updated on May 14, 2008