Water → Aspirin

HRID 465902Notes

Reaction equation

HRID 465902 reaction equation
[C:1]([OH:4])(=[O:3])[CH3:2].[C:5]([OH:14])(=[O:13])[C:6]1[C:7](=[CH:9][CH:10]=[CH:11][CH:12]=1)O.O>C(O)C>[CH3:2][C:1]([O:4][C:12]1[CH:11]=[CH:10][CH:9]=[CH:7][C:6]=1[C:5]([OH:14])=[O:13])=[O:3]

Participants

4

Reactant 2

HCID 962WaterHCID 17872858HCID 17872858, compound3×

Product 1

HCID 2244Aspirin

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

A dosage form of salicylic acid acetate for topical or oral use was prepared as follows: Desalted egg phosphatides (Hepar) were dissolved in absolute ethanol at a concentration of 250 mg/ml in a 1000 ml flask. To 400 mg of salicylic acid acetate, 1.6 ml of the above solution containing 400 mg of phosphatides was added and the solution adjusted with absolute ethanol to 4 ml. The final concentration of both ingredients in this pharmacological agent-lipid solution was 100 mg/ml. This procedure was performed at about 22.5° C.+/- about 2.5° C. and atmospheric pressure. Next, the topical/oral administration dosage form was prepared by adding the pharmacological agent-lipid solution, to water at about 22.5° C.+/- about 2.5° C. and briefly agitating the mixture. A cloudy suspension promptly formed. This salicylic acid acetate formulation may then be ingested or used topically.

Workup

  1. additionwas added
  2. customwas performed at about 22.5° C.
  3. customNext, the topical/oral administration dosage form was prepared
  4. additionby adding the pharmacological agent-lipid solution
  5. customA cloudy suspension promptly formed

Sources & evidence

ORD record
ord-7d275958b50646eb8c49ad30e020dc1f
Source dataset
uspto-grants-1992_10
Patent number
US05154930

Reaction notes

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