Azure B
SIGMA/A4043 - certified by the BSC
Synonym: N,N,N′-Trimethylthionin; Azure I; Methyleneazure
CAS Number: 531-55-5
Empirical Formula (Hill Notation): C15H16ClN3S
Molecular Weight: 305.83
EC Number: 208-511-2
MDL Number: MFCD00011935
Linear Formula: C15H16ClN3S
Product Type: Chemical
| agency | certified by the BSC |
| application(s) | diagnostic assay manufacturing hematology histology |
| color | dark green |
| composition | Dye content, ≥80% |
| fluorescence | λex 648 in ethanol |
| form | powder |
| InChI | 1S/C15H15N3S.ClH/c1-16-10 |
| InChI key | DNDJEIWCTMMZBX-UHFFFAOYSA |
| mp | 205-210 °C (dec.) (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | C[N+](C)=C(C=C1)C=C(C1=N2 |
| solubility | H2O: 1 mg/mL |
| storage temp. | room temp |
| technique(s) | microbe id | staining: suitable |
| Application: | Azure B has been used for the staining of chromosomes. |
| Application: | Certified for use in Lillie′s modified Nocht′s method for paraffin sections and the NCCLS method for blood smears. |
| Biochem/physiol Actions: | Azure B is a cationic dye. It is part of the Romanowsky stain, which is used for the staining of blood films. It is also used for the localization of nucleic acids. |
| 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 |
| mp | 205-210 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| Colour Index Number | 52010 |
| UNSPSC | 12171500 |

