An orange crystalline dye that is the sodium salt of the azo compound of dimethylaniline and sulphanilic acid and is chiefly used as an acid–base indicator, changing from red to yellow-orange over a pH range of 3.1 to 4.4; (CH₃)₂ NC₆ H₄ N=NC₆ H₄ SO₃ Na.

]]>https://definedictionarymeaning.com/topic/231370/methylorangeRSS for NodeTue, 23 Jun 2026 19:45:00 GMTFri, 06 Aug 2021 07:44:04 GMT60