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Fluorescent Indicators and Probes > pH Sensitive Probes and Indicators > Alphabetical
Spectroscopy > Fluorescence/Luminescence Spectroscopy > Dyes for Fluorescence Sensors
Fluorescent Indicators and Probes > pH Sensitive Probes and Indicators > pH Indicators for Sensor Dyes

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21932

Sigma

5(6)-Carboxynaphthofluorescein

BioChemika, for fluorescence, ≥90% (TLC)


CAS Number:	128724-35-6
Linear Formula:	C₂₉H₁₆O₇
Molecular Weight:	476.43
MDL number:	MFCD01862976

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Description

Application

suitable as pH-indicator

Properties

grade	for fluorescence
product line	BioChemika
assay	≥90% (TLC)
fluorescence	λ_ex 512 nm; λ_em 567 nm (acid/neutral)
	λ_ex 598 nm; λ_em 668 nm (basic)
pKa	7.6

Safety

Personal Protective Equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
WGK Germany	3

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