- Synonyms: Basic brown 4, Vesuvin, 4,4'-(1,3-Phenylenebis(azo))bis(1,3-benzenediamine)
- C21H24N8·2HCl
- M = 461,40 g/mol
- CAS [5421-66-9]
- EINECS-No.: 226-541-4
- Melting point: 222 ºC
- Tariff number: 2927 00 00 90
- Applications: dye (for biology, cosmetics).
SPECIFICATIONS
Absorption maximum l (in H2O): 463 - 467 nm
Absorptivity (A1%/1 cm; l1 max) : min. 250
related substances (TLC): passes test
loss on drying (110 ºC): max. 10 %