Crocein Scarlet 7B
SIGMA/C8822
Synonym: Acid Red 71
CAS Number: 6226-76-2
Empirical Formula (Hill Notation): C24H18N4Na2O7S2
Molecular Weight: 584.53
MDL Number: MFCD00056588
Linear Formula: C24H18N4O7S2Na2
Product Type: Chemical
| application(s) | diagnostic assay manufacturing hematology histology |
| color | red to brown |
| composition | Dye content, ~65-85% |
| form | powder |
| InChI | 1S/C24H20N4O7S2.Na.H/c1-1 |
| InChI key | HJEUGBJDHUTXMF-NPYGFOBASA |
| Quality Level | 200 ![]() |
| SMILES string | [Na].Cc1cc(ccc1N=Nc2c(O |
| solubility | H2O: 1 mg/mL |
| storage temp. | room temp |
| Biochem/physiol Actions: | Crocein Scarlet 7B (acid red 71) is used in Crowle’s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints. |
| Packaging: | 1, 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 | 27165 |
| UNSPSC | 12171500 |

