F4274

Fluorescein isothiocyanate isomer I

≥97.5% purity (HPLC), powder

• Synonym(s): FITC, Fluorescein 5-isothiocyanate
• Empirical Formula (Hill Notation): C₂₁H₁₁NO₅S
• CAS Number: 3326-32-7
• Molecular Weight: 389.38
• Beilstein/REAXYS Number: 1407295
• EC Number: 222-042-0
• MDL number: MFCD00005063
• UNSPSC Code: 12171500
• PubChem Substance ID: 24894860
• NACRES: NA.47

Properties

• product name: Fluorescein isothiocyanate isomer I, ≥97.5% (HPLC)
• assay: ≥97.5% (HPLC)
• form: powder
• color: yellow to very dark yellow
• mp: >360 °C (lit.)
• solubility: acetone: soluble 10 mg/mL
• fluorescence: λ_ex 492 nm; λ_em 518 nm (green)
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: 2-8°C
• SMILES string: Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5cc(ccc45)N=C=S)c1
• InChI: 1S/C21H11NO5S/c23-12-2-5-16-18(8-12)26-19-9-13(24)3-6-17(19)21(16)15-4-1-11(22-10-28)7-14(15)20(25)27-21/h1-9,23-24H
• InChI key: MHMNJMPURVTYEJ-UHFFFAOYSA-N

Description

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.

Application

Fluorescein isothiocyanate isomer I has been used for the staining of conidia.

Reagent for the FITC labeling of proteins; Microsequencing of proteins and peptides (HPLC)

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Safety Information

• pictograms: GHS08
• signalword: Danger
• hcodes: H317,H334
• pcodes: P261 - P272 - P280 - P284 - P302 + P352 - P333 + P313
• Hazard Classifications: Resp. Sens. 1 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves