Description
C.I.No.23850 Trypan blue is a vital stain used to selectively colour dead tissues or cells blue.
Congo Blue 3B; Direct Blue 14, Niagara Blue 3B; 3,3'-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid] tetrasodium salt
| CAS | 72-57-1 |
| Molecular Formula | C34H24N6Na4O14S4 |
| Molecular Weight | 960.80 |
| Shelf Life | 60 Months |
| Physical Properties | |||
| Physical State at 20 °C | Solid | Colour | Dark blue crystalline |
| Melting Point/ Freezing Point [°C] | > 300 °C | Solubility in Water [% weight] | Soluble in water |
| Specifications | |||
| Appearance | Dark Green to Brown or Brown-Black Powder, Crystalline Powder or Granule | Dye Content | Min 60% |
| Dangerous Goods Information | |||
| UN Number | – | DG Class | – |
| Safety Information & Hazard Symbols | |
| Symbol | GHS08 |
| Signal Word | Danger |
| Hazard Statement | H350 |
| Precaution Statement | P201-P308 + P313 |















