12832

3-(2-Benzoxazolyl)umbelliferyl acetate

for fluorescence, ≥98.0% (HPLC)

• Synonym(s): 7-Acetoxy-3-(2-benzoxazolyl)coumarin
• Empirical Formula (Hill Notation): C₁₈H₁₁NO₅
• CAS Number: 97004-78-9
• Molecular Weight: 321.28
• Beilstein/REAXYS Number: 5985817
• MDL number: MFCD00711405
• UNSPSC Code: 12352200
• PubChem Substance ID: 24847844

Properties

• grade: for fluorescence
• assay: ≥98.0% (HPLC)
• mp: 203-205 °C (lit.)
• solubility: DMF: soluble; DMSO: soluble; dioxane: soluble
• fluorescence: λ_ex 410 nm; λ_em 468 nm in 50 mM Tris pH 8.0 (esterase)
• storage temp.: 2-8°C
• SMILES string: CC(=O)Oc1ccc2C=C(C(=O)Oc2c1)c3nc4ccccc4o3

Description

Application

The reagent has absorption maxima in the UV range but weak blue fluorescence; however, enzymatic hydrolysis converts it into highly fluorescent anionic molecule.

suitable as fluorogenic substrate for esterases

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)