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Solvent Yellow 93
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Name

Solvent Yellow 93

 EINECS 225-184-1
CAS No. 4702-90-3 Density 1.27 g/cm3
PSA 65.34000 LogP 2.37560
Solubility 4.7μg/L at 23℃ Melting Point 180 °C
Formula C21H18N4O2 Boiling Point 556.2 °C at 760 mmHg
Molecular Weight 358.4 Flash Point 290.2 °C
Transport Information N/A Appearance COA
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 4702-90-3 (Solvent Yellow 93) Hazard Symbols N/A
Synonyms

2-Pyrazolin-5-one,4,4'-methylidynebis[3-methyl-1-phenyl- (6CI,7CI,8CI);3H-Pyrazol-3-one, 4-((1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl)-2,4-dihydr o-5-methyl-2-phenyl-;C.I. SolventYellow 93;Diaresin Yellow L 3G;Kayaset Yellow GN;Macrolex Yellow 3G;OplasYellow 140;Plast Yellow 8000;Sandoplast Yellow 3G;

Article Data 19

Solvent Yellow 93 Synthetic route

1188497-81-5

6-[allyl(methyl)amino]-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde

89-25-8

edaravone

A

105459-37-8

1,3-dimethyl-6-N,N-(allylmethyl)aminouracil

B

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In ethanol for 2.5h; Reflux;A 80%
B n/a
139958-85-3

6-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidine-5-carbaldehyde

89-25-8

edaravone

A

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

B

41949-07-9

6-hydroxy-1,3-dimethyluracil

Conditions
ConditionsYield
With piperidine In ethanol at 20℃; for 0.5h;A 80%
B 80%
89-25-8

edaravone

193696-10-5

1,3-Dimethyl-2,4-dioxo-6-pyrrolidin-1-yl-1,2,3,4-tetrahydro-pyrimidine-5-carbaldehyde

A

74151-85-2

N,N-dimethyl-6-pyrrolidino uracil

B

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In ethanol for 2.5h; Reflux;A 80%
B n/a
114143-07-6

6-(Allyl-phenyl-amino)-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidine-5-carbaldehyde

89-25-8

edaravone

A

1188497-84-8

C15H17N3O2

B

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

Conditions
ConditionsYield
With piperidine In ethanol at 20℃; for 0.666667h;A 75%
B n/a
89-25-8

edaravone

35824-85-2

6-chloro-5-formyl-1,3-dimethyluracil

A

6972-27-6

1,3-Dimethyl-6-chlorouracil

B

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

Conditions
ConditionsYield
With piperidine In ethanol at 20℃; for 0.5h;A 75%
B n/a

6-hydroxy-1-methyl-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidine-5-carbaldehyde

89-25-8

edaravone

A

4702-90-3

1-phenyl-3-methyl-4-(1-phenyl-3-methyl-5-oxo-4-pyrazolylidene)methylene-5-pyrazolone

B

6-Hydroxy-1-methyl-1H-pyrimidine-2,4-dione

Conditions
ConditionsYield
With piperidine In ethanol at 20℃; for 0.666667h;A n/a
B 70%

Solvent Yellow 93 Chemical Properties


IUPAC Name: (4E)-5-Methyl-4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)methylidene]-2-phenylpyrazol-3-one
Molecular Formula: C21H18N4O2
Molecular Weight: 358.40 g/mol
Canonical SMILES: O=C1N(N=C(C)\C1=C/[C@@H]1C(=O)N(N=C1C)c1ccccc1)c1ccccc1
InChI: InChI=1/C21H18N4O2/c1-14-18(20(26)24(22-14)16-9-5-3-6-10-16)13-19-15(2)23-25(21(19)27)17-11-7-4-8-12-17/h3-13,18H,1-2H3/b19-13+ 
EINECS: 225-184-1
Product Categories: Solvent Dyestuff
XLogP3-AA: 2.8
H-Bond Donor: 0
H-Bond Acceptor: 4
Surface Tension: 51.2 dyne/cm 
Density: 1.27 g/cm3 
Flash Point: 290.2 °C 
Enthalpy of Vaporization: 83.77 kJ/mol 
Boiling Point: 556.2 °C at 760 mmHg 
Vapour Pressure of Solvent Yellow 93 (CAS NO.4702-90-3): 2.07E-12 mmHg at 25 °C

Solvent Yellow 93 Specification

 Solvent Yellow 93 (CAS NO.4702-90-3), its Synonyms are  3H-Pyrazol-3-one, 4-((1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl)-2,4-dihydr o-5-methyl-2-phenyl- ; 3H-Pyrazol-3-one, 4-((1,5-dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl)-2,4-dihydro-5-methyl-2-phenyl- ; 4-((1,5-Dihydro-3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-ylidene)methyl)-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one ; Diaresin Yellow L 3G ; Kayaset Yellow GN ; Macrolex Yellow 3G ; Oplas Yellow 140 ; Sandoplast Yellow 3G ; Solvaperm Yellow 3G ; Thermoplast Yellow 104 .

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