21272-26-4 Usage
Type of compound
Pyrazolone group of nonsteroidal anti-inflammatory drugs (NSAIDs)
Function
Inhibits the production of prostaglandins
Medical uses
Analgesic and antipyretic medication
Side effects
Potential to cause serious side effects such as agranulocytosis and aplastic anemia
Combination with other drugs
Often combined with paracetamol or codeine to enhance pain-relieving effects
Availability
No longer widely available in many countries due to potential side effects
Check Digit Verification of cas no
The CAS Registry Mumber 21272-26-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,7 and 2 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21272-26:
(7*2)+(6*1)+(5*2)+(4*7)+(3*2)+(2*2)+(1*6)=74
74 % 10 = 4
So 21272-26-4 is a valid CAS Registry Number.
21272-26-4Relevant academic research and scientific papers
Novel synthesis of highly functionalized pyrazolone systems via rearrangement of 5-phenyl-1-oxa-5,6-diazaspiro[2.4]heptane-4,7-diones
Metwally,Mohamed,Moustafa,El-Ossaily
experimental part, p. 1344 - 1353 (2011/10/17)
Epoxidation of 4-alkylidene(arylidene)-1-phenyl-3,5-pyrazolidinediones using alkaline hydrogen peroxide gave the corresponding 5-phenyl-1-oxa-5,6- diazaspiro[2.4]heptane-4,7-dione derivatives. Their reaction with nucleophilic reagents was investigated. The resulting products depend on the type of the diazaspiro compound and/or the nucleophile used.
