Alizarin yellow GG, C.I. 14025, indicator

- Synonyms: 2-Hydroxy-5[(3-nitrophenyl)azo]benzoic acid monosodium salt, Mordant yellow 1r- C13H8N3NaO5r- M = 309,21 g/molr- CAS [584-42-9]r- EINECS-No.: 209-536-1r- Solub. in water: (25 ºC): ~ 12 g/lr- Tariff number: 3204 19 00 90r- Applications: indicator and for microbiology.rrSPECIFICATIONSrpH range (yellow-orange): 10,2 - 12,1 rAbsorption maximum l 1 (pH 10,2) : 350 - 355 nmrron dried sample): 620 - 720 rAbsorption maximum l2 (pH 12,1): 448 - 452 nmrron dried sample): 800 - 900 rsuitability for microbiology: passes testrloss on drying (110 ºC): max. 1 %r