“…Spectra of naphthoxazolium iodides were similar to the corresponding hydrolyzed products, indicating ring cleavage (144)• Absorbance at 310 to 350 mp increased continuously, showing the release of p-nitrophenyl phosphate from deoxythymidine 5'phosphate by hydrolysis by staphylococcal nuclease (78). The hydration of -nitrocrotonic ester was shown to produce nitroacetic acid and acetaldehyde at pH 4 (31).…”