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Names and Identifiers
Name Phenylbutazone
Synonyms 4-Butyl-1,2-diphenyl-3,5-pyrazolidinedione
5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one
CAS 50-33-9
4297-92-1
EINECS 200-029-0
InChI InChI=1/C6H6O4/c7-2-4-1-5(8)6(9)3-10-4/h1,3,7,9H,2H2

Physico-chemical Properties
Molecular Formula C19H20N2O2
Molar Mass 308.379 g/mol
Density 1.542g/cm3
Melting Point 104-107℃
Boling Point 401.7°C at 760 mmHg
Flash Point 179.9°C
Solubility <0.1 g/100 mL at 23.5℃
Vapor Presure 4.01E-08mmHg at 25°C
Refractive Index 1.606

Risk and Safety
Hazard Symbols T – Toxic
Toxic
Xn – Harmful
Harmful
Risk Codes R45 – May cause cancer
R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38 – Irritating to eyes, respiratory system and skin.
R42/43 – May cause sensitization by inhalation and skin contact.
Safety Description S53 – Avoid exposure – obtain special instructions before use.
S22 – Do not breathe dust.
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.)

Products :

CAS#50-33-9, Phenylbutazone powder, C19H20N2O2
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