46951

Fluorescein isothiocyanate isomer I

≥97.5% (HPLC)

• Synonym(s): FITC, Fluorescein 5-isothiocyanate
• Empirical Formula (Hill Notation): C₂₁H₁₁NO₅S
• CAS Number: 3326-32-7
• Molecular Weight: 389.38
• Beilstein: 1407295
• EC Number: 222-042-0
• MDL number: MFCD00005063
• PubChem Substance ID: 329757274

Properties

• Quality Level: 100
• Assay: ≥97.5% (HPLC)
• form: powder
• impurities: ≤1.5% Isomer II
• mp: >360 °C (lit.)
• solubility: acetone: soluble 0.1 g/10 mL
• fluorescence: λ_ex 492 nm; λ_em 518 nm (green); λ_ex 492 nm; λ_em 518 nm in 0.1 M phosphate pH 8.0
• 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

Application

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

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Statements: H317 - H334
• Precautionary Statements: P261 - P272 - P280 - P284 - P302 + P352 - P333 + P313
• Hazard Classifications: Resp. Sens. 1 - Skin Sens. 1
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves