Use of NMR for quantitative analysis of pharmaceuticals was written by Kwakye, J. K.. And the article was included in Talanta in 1985.Related Products of 5003-48-5 The following contents are mentioned in the article:
An NMR method for anal. of pharmaceuticals involves the addition of an internal standard to a sample and subsequent extraction with a solvent, integrating the appropriate peaks and calculating the weight (Wt) of a component in the sample from the equation, Wt = ET × ITWs/Es/EsIs where ET and Es are the NMR equivalent weights of sample and the standard, IT and Is are the integrals of the selected sample and standard peaks and Ws is the weight of the standard used. Various tablets, capsules, and suspensions were analyzed by this method. Maleic acid, 3,4-dimethoxybenzoic acid, 3-acetobenzothiophene and vanillin were used as the internal standards The NMR method was simpler than the official methods and the time required for anal. was 40 min. The average recovery was 97.1-110.4%. However the method was less precise than the official methods. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Related Products of 5003-48-5).
4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Related Products of 5003-48-5
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics