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1099-45-2

Basic Information
CAS No.: 1099-45-2
Name: Acetic acid,2-(triphenylphosphoranylidene)-, ethyl ester
Molecular Structure:
Molecular Structure of 1099-45-2 (Acetic acid,2-(triphenylphosphoranylidene)-, ethyl ester)
Formula: C22H21O2P
Molecular Weight: 348.37
Synonyms: (2-Ethoxy-2-oxoethylidene)triphenylphosphorane;(Carbethoxymethylene)triphenylphosphorane;(Carbethoxymethylidene)triphenylphosphorane;(Ethoxycarbonylmethylidene)triphenylphosphorane;(Triphenylcarbethoxymethylene)phosphorane;(Triphenylphosphanylidene)aceticacid ethyl ester;(Triphenylphosphoranylidene)acetic acid ethyl ester;Carbethoxytriphenylphosphonium methylide;NSC 72406;[(Ethoxycarbonyl)methylene]triphenylphosphorane;
EINECS: 214-151-7
Density: 1.15 g/cm3
Melting Point: 125-127ºC
Boiling Point: 490.4 ºC at 760 mmHg
Flash Point: 263.5 ºC
Solubility: Insoluble in water
Appearance: white or slight yellow powder
Hazard Symbols: ToxicT
Risk Codes: 36/37/38-25-20/21/22
Safety: 22-24/25
Transport Information:
PSA: 36.11000
LogP: 3.34580
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Chemistry

Molecular formula: C22H21O2P
Molar mass: 348.37
Molecular Structure of Ethyl (triphenylphosphoranylidene)acetate(1099-45-2): 
                                          
Synonyms of Ethyl (triphenylphosphoranylidene)acetate(1099-45-2):(ETHOXYCARBONYLMETHYLENE)TRIPHENYLPHOSPHORANE;(triphenylphosphoranylidene)-aceticaciethylester;ETHYL (TRIPHENYLPHOSPHORANYLIDEN)ACETATE;ETHYL (TRIPHENYLPHOSPHORANYLIDENE)ACETATE(CARBOETHOXYMETHYLENE)TRIPHENYLPHOSPHORANE;(CARBETHOXYMETHYLENE)TRIPHENYLPHOSPHORANE;ETHYL (TRIPHENYLPHOSPHORYLIDENE)ACETATE.
Melting point:128-131 °C
Hazard Note:  Keep Cold
Sensitive: Air Sensitive
Water Solubility:  Insoluble
storage temp:  2-8°C

Uses

Ethyl (triphenylphosphoranylidene)acetate(1099-45-2) is used in process of pharmaceutical synthesis  as a common Wittig reagent and a cholinesterase inhibitor.
cholinesterase inhibitor could combines with the cholinesterase (ChE) and inhibits it's activity

Toxicity Data With Reference

Carcinogenicity of Ethyl (triphenylphosphoranylidene)acetate(1099-45-2):  (Carbethoxymethylene)triphenylphosphorane - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.

Safety Profile

Hazard Codes  T,Xi,Xn
Risk Statements:
20:  Harmful by inhalation
21:  Harmful in contact with skin
22:  Harmful if swallowed
25:  Toxic if swallowed
36:  Irritating to the eyes
37:  Irritating to the respiratory system
38:  Irritating to the skin
Safety Statements :
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
37:  Wear suitable gloves
39:  Wear eye/face protection
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)

Specification

Hazardous Decomposition Products: Phosphine, carbon monoxide, oxides of phosphorus, carbon dioxide.
Chemical Stability: Stable under normal temperatures and pressures. Air sensitive. Moisture sensitive. 
Incompatibilities with Other Materials: Strong oxidizing agents. 
Conditions to Avoid: Incompatible materials, exposure to air, exposure to moist air or water.