TY JOUR TI SYNTHESIS OF B-NAPHTHOLORANGE AND STUDY OF ITS STRUCTURE BY NMR SPECTROSCOPY KW naphtholorange KW diazotization reaction KW azo coupling reaction KW NMR spectroscopy JO Bulletin of the Angarsk State Technical University AU Chirkina, E.A. PY 2024 IS 1 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»