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4-(Dimethylamino)-azobenzene, for analysis, ExpertQ®

- Synonyms: Methyl yellow, Dimethyl yellow, Solvent yellow 2r- C14H15N3r- M = 225,30 g/molr- CAS [60-11-7]r- EINECS-No.: 200-455-7r- Solub. in water: (20 ºC): almost insolubler- Melting point: 113 - 117 ºCr- LD 50 (oral, rat): 200 mg/kgr- ADR: 6.1 T2 III UN 2811r- IMDG: 6.1 III UN 2811r- IATA/ICAO: 6.1 III UN 2811r- GHS-signal word: Dangerr- GHS-H sentences: H301 - H351 - H317r- GHS-P sentences: P261 - P280 - P301+P310 - P321 - P405 - P501ar- Tariff number: 2927 00 00 90r- Applications: indicator, analytical chemistry.r- Appearance: Orange-orange brown powderrrSPECIFICATIONSridentity (IR-spectrum): passes testrpH range (red to yellow): 3,0 - 4,0rAbsorption max l1 (buffer pH 3,0) : 508 - 511 nmrAbsorption max l2 (buffer pH 4,0) : 455 - 460 nmrAbsorption max l3 (ethanol) : 403 - 407 nmrrethanol, on dried sample): 1100 - 1300rloss on drying (105 ºC): max. 5 % r