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SML1734

Sigma-Aldrich

FHZ

≥98% (HPLC)

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Synonym(s):
2-Amino-3′-hydroxy-6′-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)spiro[isoindoline-1,9′-xanthen]-3-one
Empirical Formula (Hill Notation):
C26H26N2O7
CAS Number:
Molecular Weight:
478.49
UNSPSC Code:
12352200

Assay

≥98% (HPLC)

form

powder

storage condition

protect from light

color

white to light brown

solubility

DMSO: 30 mg/mL, clear

storage temp.

2-8°C

SMILES string

OC1=CC(OC(C=C(OCCOCCOCCO)C=C2)=C2C34N(N)C(C5=C4C=CC=C5)=O)=C3C=C1

Biochem/physiol Actions

FHZ is a highly selective, cell-permeable, non-cytotoxic, non-fluorescent 6-triethylene glycol-substituted fluorescein hydrazide that is an efficient fluorescent turn-on probe for dual channel detection of (•OH) and HOCl in live cells and zebrafish embryos. FHZ selectively reacts with hydroxyl (•OH) and HOCl, respectively, to form highly fluorescent FOBA (Ex: 410 nm & Em.: 486 nm; Φ = 0.42; ε410 = 12000/M/cm) and F-TEG (Ex: 490 nm & Em.: 520 nm; Φ = 0.34; ε490 = 7000/M/cm), while exhibiting no reactivity toward H2O2 1O2, O2•–, NO, or ONOO–. Cyan and green fluorescence dual-channel detection with two exciting wavelengths (405 nm and 488 nm) and two collection windows (430–490 nm; 510–560 nm) allows time-dependent quantitative detection of cellular •OH and HOCl by FHZ in live cells (50-100 μM; HeLa and RAW 264.7 macrophages) cells and zebrafish embryos (50 μM).

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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