Direct Red 80
SIAL/365548 - Dye content 25 %
Synonym: Sirius Red
CAS Number: 2610-10-8
Empirical Formula (Hill Notation): C45H26N10Na6O21S6
Molecular Weight: 1373.07
EC Number: 220-027-3
MDL Number: MFCD00054389
Linear Formula: C45H26N10Na6O21S6
Product Type: Chemical
| ε (extinction coefficient) | ≥12000 at 277-283 nm in H2O |
| ≥15000 at 223-235 nm in H2O | |
| ≥32000 at 524-530 nm in H2O | |
| λmax | 528 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| color | dark brown |
| composition | Dye content, 25% |
| form | powder |
| InChI | 1S/C45H32N10O21S6.6Na/c56 |
| InChI key | YIQKLZYTHXTDDT-IJPLDVMMSA |
| Quality Level | 200 ![]() |
| SMILES string | [Na+].[Na+].[Na+].[Na+].[ |
| storage temp. | room temp |
| technique(s) | titration: suitable |
| Application: | Direct Red 80 has been used as an ingredient in the preparation of saturated picric acid for immunohistochemical detection and quantitation of collagen in liver tissues.Other applications include -• detection of amyloid • Sirius red-Van Gieson methods for quantitation of collagen using image analysis methods • counterstaining applications substituting eosin in alum hematoxylins |
| General description: | Direct Red 80 (C.I. 35780) is an extremely hydrophilic, very large tetrakisazo hexasulfonated anionic dye that has a large, planar aromatic system.It is also known as Sirius red F3B, chlorantine fast red 7BLN or 5BRL, durazol brilliant red B, pontamine fast red 7BNL, and sirius fast red. |
| Packaging: | 5, 25 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Storage Temp. | room temp |
| Colour Index Number | 35780 |
| UNSPSC | 12171500 |

