| acid orange 52; C.I. 13025; helianthin; methyl orange; sodium 4-(4-dimethylaminophenyl)diazenylbenzenesulfonate; tropaeolin | |
| Links: | 🌍 Wikipedia, 🕷 ChemSpider, 📖 PubMed, 📖Houben-Weyl, 2. Band (Methylorange); p. 354 |
| MeSH: | Indicators and Reagents |
| CAS RN: | [502-02-3] |
| Formula: | C14H14N3NaO3S; 327.34 g/mol |
| InChiKey: | STZCRXQWRGQSJD-UHFFFAOYSA-M |
| SMILES: | [Na+].CN(C)c1ccc(cc1)N=Nc2ccc(cc2)[S]([O-])(=O)=O |
| Colour: | ⬤ |
| Melting point: | 300 °C |
| 1g dissolves in: 55.56g pyridine; 133.33g pyridine; 666.67g pyridine; 4,444.44g water; 5,000.00g water | |