Product Name

  • Name

    Methyl (triphenylphosphoranylidene)acetate

  • EINECS 220-018-4
  • CAS No. 2605-67-6
  • Article Data73
  • CAS DataBase
  • Density 1.177 g/cm3
  • Solubility insoluble in water
  • Melting Point 168-172 °C(lit.)
  • Formula C21H19O2P
  • Boiling Point 479.138 °C at 760 mmHg
  • Molecular Weight 334.354
  • Flash Point 256.768 °C
  • Transport Information
  • Appearance white to off-white powder
  • Safety 22-24/25-36-26
  • Risk Codes 36/37/38-25
  • Molecular Structure Molecular Structure of 2605-67-6 (Methyl (triphenylphosphoranylidene)acetate)
  • Hazard Symbols ToxicT, IrritantXi
  • Synonyms Aceticacid, (triphenylphosphoranylidene)-, methyl ester (6CI,7CI,8CI,9CI);(2-Methoxy-2-oxoethylidene)triphenylphosphorane;(Carbomethoxymethylene)triphenylphosphine;(Carbomethoxymethylene)triphenylphosphorane;(Triphenylphosphoranylidene)methyl acetate;(Triphenylphosphoranylidene)acetic acid methyl ester;2-(Triphenylphosphoranylidene)acetic acid methyl ester;Methyl(triphenylphosphoranylidene)acetate;Methyl2-(triphenylphosphoranylidene)acetate;Methyl triphenylphosphonoacetate;NSC 407395;Triphenyl(carbomethoxymethylene)phosphorane;[(Methoxycarbonyl)methylene]triphenylphosphorane;
  • PSA 36.11000
  • LogP 2.95570

Methyl (triphenylphosphoranylidene)acetate Chemical Properties

 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

Methyl (triphenylphosphoranylidene)acetate Safety Profile

Safety Information of Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester (CAS NO.2605-67-6):
Hazard Codes: TToxic,XiIrritant
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

Methyl (triphenylphosphoranylidene)acetate Specification

  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 .

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