Product Name

  • Name

    N-BUTYLIDENEPHTHALIDE

  • EINECS 208-991-3
  • CAS No. 551-08-6
  • Article Data17
  • CAS DataBase
  • Density 1.204 g/cm3
  • Solubility
  • Melting Point 82.5°C
  • Formula C12H12O2
  • Boiling Point 312°Cat760mmHg
  • Molecular Weight 188.226
  • Flash Point 113 ºC
  • Transport Information
  • Appearance
  • Safety Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Risk Codes R22   
  • Molecular Structure Molecular Structure of 551-08-6 (N-BUTYLIDENEPHTHALIDE)
  • Hazard Symbols HarmfulXn
  • Synonyms Phthalide,3-butylidene- (6CI,7CI,8CI);Butylidenephthalide;Ligusticum lactone;NSC 325307;1(3H)-Isobenzofuranone,3-butylidene-;
  • PSA 26.30000
  • LogP 2.99800

3-Butylidenephthalide Chemical Properties

Molecular Structure of 3-Butylidenephthalide (CAS NO.551-08-6):

IUPAC Name: (3Z)-3-Butylidene-2-benzofuran-1-one
Molecular Weight: 188.22248 [g/mol]
Molecular Formula: C12H12O2
XLogP3-AA: 3.2
H-Bond Donor: 0
H-Bond Acceptor: 2 
EINECS: 208-991-3 
FEMA: 3333 
Index of Refraction: 1.631
Molar Refractivity: 55.69 cm3
Molar Volume: 156.2 cm3
Surface Tension: 53.2 dyne/cm
Density: 1.204 g/cm3
Flash Point: 127.9 °C
Enthalpy of Vaporization: 55.29 kJ/mol
Boiling Point: 312 °C at 760 mmHg
Vapour Pressure: 0.000545 mmHg at 25 °C
Classification Code: Skin / Eye Irritant  
Product Categories: Phthalides; A-B; Alphabetical Listings; Flavors and Fragrances

3-Butylidenephthalide Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin > 5gm/kg (5000mg/kg)   Food and Chemical Toxicology. Vol. 21, Pg. 659, 1983.
rat LD50 oral 1850mg/kg (1850mg/kg)   Food and Chemical Toxicology. Vol. 21, Pg. 659, 1983.

3-Butylidenephthalide Consensus Reports

Reported in EPA TSCA Inventory.

3-Butylidenephthalide Safety Profile

Safety Information of 3-Butylidenephthalide (CAS NO.551-08-6):
Hazard Codes: Xn
Risk Statements: 22
22: Harmful if swallowed
Safety Statements: 23
33: Take precautionary measures against static discharges
WGK Germany: 2
RTECS: TI3692500
Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

3-Butylidenephthalide Specification

 3-Butylidenephthalide (CAS NO.551-08-6), its Synonyms are 1(3H)-Isobenzofuranone, 3-butylidene- ; 3-Butylidene phthalide ; 3-Butylidene-1(3H)-isobenzofuranone ; Ligusticum lactone ; Phthalide, 3-butylidene- ; n-Butylidene phthalide ; BdPh ; Butylidene phthalide .

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