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75980-60-8

Basic Information
CAS No.: 75980-60-8
Name: Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
Article Data: 36
Cas Database
Molecular Structure:
Molecular Structure of 75980-60-8 (Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide)
Formula: C22H21O2P
Molecular Weight: 348.381
Synonyms: TPO;Methanone,(diphenylphosphinyl)(2,4,6-trimethylphenyl)-;
EINECS: 278-355-8
Density: 1.17 g/cm3
Melting Point: 88-92 °C
Boiling Point: 519.6 °C at 760 mmHg
Flash Point: 268.1 °C
Solubility: N/A
Appearance: white or cream powder
Hazard Symbols: HarmfulXn
Risk Codes: 22
Safety: 22-24/25
Transport Information: N/A
PSA: 43.95000
LogP: 4.76610
Synthetic route

α-hydroxy-(2,4,6-trimethylbenzyl)diphenyl phosphine oxide

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
With manganese(IV) oxide In dichloromethane at 20℃;98%
With vanadium(V) oxide; dihydrogen peroxide at 8 - 25℃; for 3.5h; Reagent/catalyst; Green chemistry;96%
With tert.-butylhydroperoxide In dichloromethane at 5 - 20℃; for 6.5h; Reagent/catalyst;92.5%
487-68-3

mesytaldehyde

4559-70-0

Diphenylphosphine oxide

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
Stage #1: mesytaldehyde; Diphenylphosphine oxide In dichloromethane for 6h; Green chemistry;
Stage #2: With ammonium metavanadate; dihydrogen peroxide at 8 - 20℃; for 5.5h; Reagent/catalyst; Green chemistry;
98%
39150-04-4

diphenyl n-pentyloxyphosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 50 - 90℃; for 9.33333h;95.8%
65119-90-6

(sec-butyloxy)di(phenyl)phosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 50 - 90℃; for 7.33333h;95.6%
719-80-2

Ethyl diphenylphosphinite

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 40 - 90℃; for 8h; Time; Green chemistry;95.1%
With N,N-dimethyl-cyclohexanamine at 80 - 85℃; Product distribution / selectivity;
92556-46-2

diphenyl n-propoxyphosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 50 - 90℃; for 7.33333h;95.1%
38011-61-9

diphenyl sec-pentyloxyphosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 50 - 90℃; for 7.33333h;94.9%
13360-94-6

(n-butyloxy)di(phenyl)phosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
at 50 - 90℃; for 9.33333h;94.8%
149731-53-3

(2,4,6-trimethylbenzyl)diphenylphosphine oxide

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
With tert.-butylhydroperoxide; bis(acetylacetonate)oxovanadium In dichloromethane at 20℃;94%
64-17-5

ethanol

1079-66-9

chloro-diphenylphosphine

938-18-1

mesitylene-2-carboxylic acid chloride

75980-60-8

(2,4,6-trimethylbenzoyl)diphenylphosphine oxide

Conditions
ConditionsYield
Stage #1: ethanol With sodium In toluene at 65 - 70℃; for 2h;
Stage #2: chloro-diphenylphosphine In toluene at 5 - 10℃; for 1h;
Stage #3: mesitylene-2-carboxylic acid chloride In toluene at 70 - 75℃; for 5h; Temperature; Solvent;
92.2%
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    MSDS/COA Download

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  • Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide CAS: 75980-60-8

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  • Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide

  • Casno:

    75980-60-8

    Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide

    Min.Order: 1 Kilogram

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Chemistry

IUPAC Name: Diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone 
Following is the structure of 2,4,6-Trimethylbenzoyldiphenylphosphine Oxide (CAS NO.75980-60-8):
                    
Molecular formula: C22H21O2P
Molecular Weight: 348.37 g/mol
EINECS: 278-355-8
Index of Refraction: 1.6
Molar Refractivity: 101.52 cm3
Molar Volume: 296.6 cm3
Density: 1.17 g/cm3
Flash Point: 268.1 °C 
Melting point: 88-92 °C(lit.)
Surface Tension: 48.4 dyne/cm
Enthalpy of Vaporization: 79.24 kJ/mol
Boiling Point: 519.6 °C at 760 mmHg
Vapour Pressure: 6.71E-11 mmHg at 25°C 
Product Categories of 2,4,6-Trimethylbenzoyldiphenylphosphine Oxide (CAS NO.75980-60-8): Functional Materials; Photopolymerization Initiators; Miscellaneous; Organic Photoinitiators; Polymerization Initiators
Stability of 2,4,6-Trimethylbenzoyldiphenylphosphine Oxide (CAS NO.75980-60-8): Stable. Incompatible with strong oxidizing agents.
Appearance of 2,4,6-Trimethylbenzoyldiphenylphosphine Oxide (CAS NO.75980-60-8): white or cream powder
Canonical SMILES: CC1=CC(=C(C(=C1)C)C(=O)P(=O)(C2=CC=CC=C2)C3=CC=CC=C3)C
InChI: InChI=1S/C22H21O2P/c1-16-14-17(2)21(18(3)15-16)22(23)25(24,19-10-6-4-7-11-19)20-12-8-5-9-13-20/h4-15H,1-3H3
InChIKey: VFHVQBAGLAREND-UHFFFAOYSA-N

Safety Profile

Hazard Codes:  Xn
The Risk Statements information: 22
22:  Harmful if swallowed 
The Safety Statements information: 22-24/25
22:  Harmful if swallowed 
24/25:  Avoid contact with skin and eyes 
WGK Germany:2

Specification

 2,4,6-Trimethylbenzoyldiphenylphosphine Oxide , its cas register number is 75980-60-8. It also can be called  Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide . Its classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance].