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1-PHENYL-3-CARBOXY-5-PYRAZOLONE | ||
PRODUCT IDENTIFICATION |
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CAS NO. | 119-18-6 |
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EINECS NO. | 204-304-6 | |
FORMULA | C10H8N2O3 | |
MOL WT. | 204.18 | |
H.S. CODE | ||
TOXICITY |
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SYNONYMS | 5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid; | |
ácido 1-fenil-5-oxo-2-pirazolina-3-carboxílico; Acide 5-oxo-1-phényl-2-pyrazoline-3-carboxylique; | ||
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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PHYSICAL STATE |
yellow to beige crystalline powder |
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MELTING POINT |
237 C |
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BOILING POINT |
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SPECIFIC GRAVITY | ||
SOLUBILITY IN WATER | ||
pH | ||
VAPOR DENSITY | ||
AUTOIGNITION |
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NFPA RATINGS | Health: 2; Flammability: ; Reactivity: 0 | |
REFRACTIVE INDEX |
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FLASH POINT | ||
STABILITY | Stable under ordinary conditions. | |
APPLICATIONS |
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Pyrazolone is a five-membered lactam ring compound containing two nitrogens and
ketone in the same molecule. Lactam structure is an active nucleuses in
pharmacological activity. Pyrazolone is an active moiety as a pharmaceutical
ingredient, especially in the class of nonsteroidal antiinflammatory agents used
in the treatment of arthritis and other musculoskeletal and joint disorders.
The term of pyrazolone sometimes refers to nonsteroidal anti-inflammatory agents. Pyrazolone class NSAID (nonsteroidal anti-inflammatory drug) includes phenylbutazone, oxyphenbutazone, dipyrone, and ramifenazone. Antipyrine (also called phenazone) is a pyrazolone class analgesic agent in otic solutions in combination with other analgesic such as benzocaine, and phenylephrine. Antipyrine has been used as an antipyretic, but replaced due to the possibility of agranulocytosis side effect. Lactams have big demand in artificial fibre industry. Pyrazolone derivatives, as lactam structure related compounds, are also widely used in preparing dyes and pigments. 4-Aminoantipyrine possibly can be used as an intermediate for the synthesis of pharmaceuticals especially antipyretic and analgesic drugs. It is also used in the colorimetric determination of phenols. Amidopyrine is used in manufacturing drugs especially for antipyretic, analgesic, antirheumatic and sedative agent agents. This substance has analgesic, anti-inflammatory, and antipyretic properties. But the use is discouraged due to the risk of agranulocytosis. Lactams have big demand in artificial fibre industry. Pyrazolone derivatives, as lactam structure related compounds, are also widely used in preparing dyes and pigments. |
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SALES SPECIFICATION | ||
APPEARANCE |
yellow to brown crystalline powder |
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ASSAY |
95.0% min (Dry purity) |
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WATER |
5.0% max |
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TRANSPORTATION | ||
PACKING | ||
HAZARD CLASS | 8 (Packing Group: II) | |
UN NO. | 3261 | |
OTHER INFORMATION | ||
Hazard Symbols: C, Risk Phrases: 34, Safety Phrases: 26-36/36/39-45 |
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