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621-82-9

Name Cinnamic acid
CAS 621-82-9
EINECS(EC#) 205-398-1
Molecular Formula C9H8O2
MDL Number MFCD00004369
Molecular Weight 148.16
MOL File 621-82-9.mol

Chemical Properties

Appearance monoclinic crystals
Melting point  133 °C(lit.)
Boiling point  300 °C(lit.)
density  1.2475
FEMA  2288
refractive index  1.5049 (estimate)
Fp  >230 °F
storage temp.  Sealed in dry,Room Temperature
solubility  Chloroform (Slightly), Methanol (Slightly)
form  Solid
pka pK (25°) 4.46
color  White to Off-White
Odor at 100.00 %. balsam sweet storax
PH 3.76(1 mM solution);3.23(10 mM solution);2.72(100 mM solution)
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
Odor Type balsamic
Water Solubility  511.2mg/L(25 ºC)
JECFA Number 657
LogP 2.13
Uses
Cinnamic Acid is a flavoring agent that consists of crystalline scales, white in color, with an odor resembling honey and flowers. it is slightly soluble in water, soluble in alcohol, chloroform, acetic acid, acetone, benzene, and most oils, and alkali salts soluble in water. it is obtained by chemical synthesis. it is also termed 3-phenylpro- penoic acid.
CAS DataBase Reference 621-82-9(CAS DataBase Reference)
NIST Chemistry Reference 2-Propenoic acid, 3-phenyl-(621-82-9)
EPA Substance Registry System 621-82-9(EPA Substance)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  1
RTECS  GD7850000
Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. A skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and fumes.

Hazard Information

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