Aminobenzoate Potassium Tablets
» Aminobenzoate Potassium Tablets contain not less than 90.0 percent and not more than 110.0 percent of the labeled amount of aminobenzoate potassium (C7H6 KNO2).
Packaging and storage Preserve in well-closed containers.
Identification Proceed as directed for Aminobenzoate Potassium Capsules, using 1 g of finely powdered Tablets.
Medium: water; 900 mL.
Apparatus 1: 100 rpm.
Time: 45 minutes.
Procedure Determine the amount of C7H6KNO2 dissolved by employing UV absorption at the wavelength of maximum absorbance at about 270 nm on filtered portions of the solution under test, suitably diluted with Medium, in comparison with a Standard solution having a known concentration of USP Aminobenzoate Potassium RS in the same Medium.
Tolerances Not less than 75% (Q) of the labeled amount of C7H6KNO2 is dissolved in 45 minutes.
Uniformity of dosage units 905: meet the requirements.
Standard preparation Prepare a solution of USP Aminobenzoate Potassium RS having a known concentration of about 5 µg per mL.
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USP32NF27 Page 1515