Fluorescein 5(6)-isothiocyanate
SIGMA/F3651 - ≥90% (HPLC)
Synonym: FITC; Fluorescein isothiocyanate
CAS Number: 27072-45-3
Empirical Formula (Hill Notation): C21H11NO5S
Molecular Weight: 389.38
EC Number: 248-207-7
MDL Number: MFCD00005063
Linear Formula: C21H11NO5S
Product Type: Chemical
| application(s) | diagnostic assay manufacturing hematology histology |
| assay | ≥90% (HPLC) |
| color | yellow to orange |
| form | powder |
| InChI | 1S/C21H11NO5S/c23-12-2-5- |
| InChI key | MHMNJMPURVTYEJ-UHFFFAOYSA |
| Quality Level | 200 ![]() |
| SMILES string | Oc1ccc2c(Oc3cc(O)ccc3C24O |
| solubility | acetone: 1 mg/mL, clear, light yellow to yellow |
| storage temp. | 2-8°C |
| technique(s) | titration: suitable |
| Application: | Fluorescein 5(6)-isothiocyanate has been used: • for fluorescence labeling of bacteria • as a standard for calibration of fluorometer • for the labeling of exosomes |
| Application: | For fluorescent labeling of proteins (e.g. immunofluorescence); H Protein labeling for gel chromatography |
| General description: | Fluorescein isothiocyanate (FITC) is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins. |
| Packaging: | 100 mg in glass bottle |
| Hazard Codes | Xn |
| Risk Statements | 42 |
| Safety Statements | 22-24/25 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Purity | ≥90% (HPLC) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12171500 |

