CAS No.50-33-9 Phenylbutazone

Phenylbutazone

Identification
Name Phenylbutazone
CAS Registry Number 50-33-9
Synonyms PHENYLBUTAZONE;1,2-Diphenyl-2,3-dioxo-4-N-butylpyrazoline;1,2-Diphenyl-3,5-dioxo-4-butylpyrazolidine;1,2-Diphenyl-4-butyl-3,5-dioxopyrazolidine;1,2-Diphenyl-4-butyl-3,5-pyrazolidinedione;3,5-dioxe-4buty-1,diphenyl-pyrazolidine;3,5-dioxo01,2-diphenyl-4-m-butyl-pyrazolidine;3,5-Dioxo-1,2-diphenyl-4-N-butyl-pyrazolidin
Molecular Structure Phenylbutazone   50-33-9
Molecular Formula C19H20N2O2
Molecular Weight 308.37
mp: 104-107 ℃
Hazard Codes: Details
Risk Statements: 36/37/38-20/21/22-42/43-45
Safety Statements: 36/37/39-26-45-22-53
RIDADR: 36/37/39-26-45-22-53

CAS 50-33-9 Wiki / 50-33-9 MSDS

Phenylbutazone
Skeletal formula
Ball-and-stick model
Clinical data
Trade names Butazolidine
ATC code
  • M01AA01 (WHO) M02AA01 (WHO)
Legal status
Legal status
  • In general: ℞ (Prescription only)
Identifiers
CAS Number
  • 50-33-9 YesY
PubChem CID
  • 4781
IUPHAR/BPS
  • 7270
DrugBank
  • DB00812 YesY
ChemSpider
  • 4617 YesY
UNII
  • GN5P7K3T8S
KEGG
  • D00510 YesY
ChEBI
  • CHEBI:48574 YesY
ChEMBL
  • CHEMBL101 YesY
ECHA InfoCard 100.000.027
Chemical and physical data
Formula C19H20N2O2
Molar mass 308.374 g/mol
3D model (JSmol)
  • Interactive image
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Phenylbutazone, often referred to as "bute,"[1] is a nonsteroidal anti-inflammatory drug (NSAID) for the short-term treatment of pain and fever in animals.

In the United States and United Kingdom it is no longer approved for human use (except for ankylosing spondylitis, because no other treatment is available), as it can cause severe adverse effects such as suppression of white blood cell production and aplastic anemia. This drug was implicated in the 2013 meat adulteration scandal. Positive phenylbutazone tests in horse meat were uncommon in the UK, however.[2]