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CAS No.: | 89-36-1 |
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Name: | 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one |
Article Data: | 3 |
Molecular Structure: | |
Formula: | C10H10N2O4S |
Molecular Weight: | 254.266 |
Synonyms: | Benzenesulfonicacid, p-(3-methyl-5-oxo-2-pyrazolin-1-yl)- (7CI,8CI);1-(4'-Sulfophenyl)-3-methyl-5-pyrazolone;1-(p-Sulfophenyl)-3-methyl-5-pyrazolone;1-(p-Sulfophenyl)-3-methylpyrazolin-5-one;3-Methyl-1-(4-sulfophenyl)-5-pyrazolone;3-Methyl-1-(4-sulfophenyl)pyrazolin-5-one;3-Methyl-1-(p-sulfophenyl)-2-pyrazolin-5-one;3-Methyl-1-(p-sulfophenyl)-5-pyrazolone;3-Methyl-1-phenyl-5-pyrazolone-4'-sulfonic acid;4-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid;Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-;Pyrazoline G;p-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzenesulfonic acid; |
EINECS: | 201-901-3 |
Density: | 1.53 g/cm3 |
Melting Point: | >252 °C (dec.)(lit.) |
Boiling Point: | 477oC |
Solubility: | 5 g/L (20 °C) in water |
Appearance: | Beige powder |
Hazard Symbols: | C |
Risk Codes: | 34 |
Safety: | 26-36/37/39-45 |
Transport Information: | UN 1759 8/PG 2 |
PSA: | 95.42000 |
LogP: | 1.62730 |
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Molecular Structure of 3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one (CAS NO.89-36-1):
IUPAC Name: 4-(3-methyl-5-oxo-4H-pyrazol-1-yl)benzenesulfonic acid
Empirical Formula:: C10H10N2O4S
Molecular Weight: 254.26
EINECS: 201-901-3
H bond acceptors: 6
H bond donors: 1
Freely Rotating Bonds: 2
Polar Surface Area: 84.42Å2
Index of Refraction: 1.666
Molar Refractivity: 61.81 cm3
Molar Volume: 166.1 cm3
Surface Tension: 63.9 dyne/cm
Density: 1.53 g/cm3
Melting point: >252 °C (dec.)(lit.)
Water Solubility: 5 g/L (20 °C)
Appearance: Beige powder.
Boiling Point: 477 °C
Product Categories: Intermediates of Dyes and Pigments; Heterocyclic Compounds
Hazard Codes: C
Risk Statements: 34
R34:Causes burns.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 1759 8/PG 2
WGK Germany: 1
3-Methyl-1-(4-sulfophenyl)-2-pyrazolin-5-one , with CAS number of 89-36-1, can be called 1-(4-Sulfophenyl)-3-methyl-5-pyrazolone ; 1-(4'-Sulfophenyl)-3-methyl-5-pyrazolone ; 1-(p-Sulfophenyl)-3-methyl-5-pyrazolone ; 1-(p-Sulfophenyl)-3-methylpyrazolin-5-one ; 3-Methyl-1-(4-sulfophenyl)-5-pyrazolone ; Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)- ; 4-(4,5-Dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid .