Colorimetric determination of phenothiazines with NBS in strong sulfuric acid solution has been previously reported (6, 7). Correlation of log emax with  and 2cv parameters of C-2 and N-10 substituents is highly significant only on absence of vulnerable groups at C-2 position. Log emax of four compounds with the same N-10 side chain was correlated with Á parameters of C-2 substituents irrespective of their vulnerability to the reagents. Correlation equations were used to predict the electronic parameters Á, and sp of –SO2N(CH3)2 from the spectrophotometric reaction model.
El-Kommos, M., & Youssef, A. (1987). COLORIMETRIC DETERMINATION OF PHENOTHIAZINE DRUGS. 4- CORRELATION BETWEEN MOLAR ABSORPTIVITY AND F, R AND X PARAMETERS OF RING SUBSTITUENTS. Bulletin of Pharmaceutical Sciences Assiut University, 10(2), 21-33. doi: 10.21608/bfsa.1987.74393
MLA
M. E. El-Kommos; A. F. Youssef. "COLORIMETRIC DETERMINATION OF PHENOTHIAZINE DRUGS. 4- CORRELATION BETWEEN MOLAR ABSORPTIVITY AND F, R AND X PARAMETERS OF RING SUBSTITUENTS". Bulletin of Pharmaceutical Sciences Assiut University, 10, 2, 1987, 21-33. doi: 10.21608/bfsa.1987.74393
HARVARD
El-Kommos, M., Youssef, A. (1987). 'COLORIMETRIC DETERMINATION OF PHENOTHIAZINE DRUGS. 4- CORRELATION BETWEEN MOLAR ABSORPTIVITY AND F, R AND X PARAMETERS OF RING SUBSTITUENTS', Bulletin of Pharmaceutical Sciences Assiut University, 10(2), pp. 21-33. doi: 10.21608/bfsa.1987.74393
VANCOUVER
El-Kommos, M., Youssef, A. COLORIMETRIC DETERMINATION OF PHENOTHIAZINE DRUGS. 4- CORRELATION BETWEEN MOLAR ABSORPTIVITY AND F, R AND X PARAMETERS OF RING SUBSTITUENTS. Bulletin of Pharmaceutical Sciences Assiut University, 1987; 10(2): 21-33. doi: 10.21608/bfsa.1987.74393