Sudan IV
SIGMA/S4261 - certified by the BSC, BioXtra
Synonym: Biebrich scarlet R fat soluble; Fat Ponceau R or 4; Lipid Crimson; Oil Red IV; Scarlet Red Scharlach; Solvent Red 24; Sudan R or BB
CAS Number: 85-83-6
Empirical Formula (Hill Notation): C24H20N4O
Molecular Weight: 380.44
EC Number: 201-635-8
MDL Number: MFCD00003893
Linear Formula: C24H20N4O
Product Type: Chemical
| λmax | 356-360 nm (2nd) |
| 519-523 nm (1st) | |
| agency | certified by the BSC |
| application(s) | diagnostic assay manufacturing hematology histology |
| composition | Dye content, ≥80% |
| form | powder |
| InChI | 1S/C24H20N4O/c1-16-7-3-6- |
| InChI key | RCTGMCJBQGBLKT-PAMTUDGESA |
| mp | 199 °C (dec.) (lit.) |
| product line | BioXtra |
| Quality Level | 200 ![]() |
| SMILES string | Cc1ccccc1N=Nc2ccc(N=N |
| storage temp. | room temp |
| Application: | Certified as a fat staining using the Churukian variant of the Lillie-Ashburn supersaturated isopropanol method. Sudan IV is substituted for the oil red O in the procedure. |
| Packaging: | 25 g in glass bottle |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H317 |
| Precautionary statements | P280 - P302 + P352 |
| Hazard Codes | Xi |
| Risk Statements | 36/38 |
| Safety Statements | 26-36 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 199 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| Colour Index Number | 26105 |
| UNSPSC | 12171500 |


