Product Name: Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester (CAS NO.2605-67-6)

Molecular Formula: C₂₁H₁₉O₂P
Molecular Weight: 334.35g/mol
Mol File: 2605-67-6.mol
EINECS: 220-018-4
Melting Point: 168-172 °C(lit.)
Boiling point: 479.1 °C at 760 mmHg
Storage Temperature: Refrigerator (+4°C)
Flash Point: 256.8 °C
Density: 1.17 g/cm³
Water Solubility: insoluble
Sensitive: Air Sensitive
Surface Tension: 47.7 dyne/cm
Enthalpy of Vaporization: 74.34 kJ/mol
Vapour Pressure: 2.42E-09 mmHg at 25°C
XLogP3-AA: 4
H-Bond Donor: 0
H-Bond Acceptor: 2
Structure Descriptors of Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester (CAS NO.2605-67-6):
  IUPAC Name: methyl 2-triphenylphosphoranylideneacetate
  Canonical SMILES: COC(=O)C=P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3
  InChI: InChI=1S/C21H19O2P/c1-23-21(22)17-24(18-11-5-2-6-12-18,19-13-7-3-8-14-19)20-15-9-4-10-16-20/h2-17H,1H3 
  InChIKey: NTNUDYROPUKXNA-UHFFFAOYSA-N
Product Categories: Wittig Reagents; Synthetic Organic Chemistry; Wittig & Horner-Emmons Reaction; Wittig Reaction

Safety Information of Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester (CAS NO.2605-67-6):
Hazard Codes: T,Xi
Risk Statements: 36/37/38-25 
25:  Toxic if swallowed
36:  Irritating to the eyes 
37:  Irritating to the respiratory system 
38:  Irritating to the skin 
Safety Statements: 22-24/25-36-26
22:  Do not breathe dust 
24:  Avoid contact with skin 
25:  Avoid contact with eyes 
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36:  Wear suitable protective clothing  
WGK Germany: 3
Hazard Note: Irritant

  Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester , its CAS NO. is 2605-67-6, the synonyms are ((Methoxycarbonyl)methylene)triphenylphosphorane ; (Carbomethoxymethylene)triphenylphosphorane ; (Triphenylphosphoranylidene)acetic acid methyl ester ; Methyl triphenylphosphoranylideneacetate ; NSC 117573 ; Triphenyl(carbomethoxymethylene)phosphorane .