- Synonyms: Black acid 1, Naphthol blue black
- C22H14N6Na2O9S2
- M = 616,5 g/mol
- CAS [1064-48-8]
- EINECS-No.: 213-903-1
- Solub. in water: (20 ºC): 30 g/l
- GHS-signal word: Danger
- GHS-H sentences: H228 - H301 - H330
- GHS-P sentences: P210 - P301+P310 - P320 - P370+P378 - P405 - P501a
- Tariff number: 3204 12 00 00
- Applications: analytical chemistry, indicator, chromatography, for electrophoresis.
SPECIFICATIONS
Absorption maximum l (in H2O): 614 - 620 nm
Absorptivity (A1%/1 cm; l max.): 625 - 670
loss on drying (135 °C) : max. 10 %