Fluorescent Probes

Fluorescent Probes

Environmentally sensitive Non-Reactive Fluorescent Probes

K35 — Fluorescent probe for albumin binding sites in plasma and serum

K37 (K6-1039) — Cholesterol sensitive probe

K8-Series — Protein sensitive probes

Click product number to get the data sheet in PDF format

Number	Product Name	Solvent System¹	Absorption max. [nm]	Extinction Coefficient [M^–1cm^–1]	Emission max. [nm]	QY [%]	FLT [ns]	Solvent System¹	Absorption max. [nm]	Emission max. [nm]	QY [%]	FLT [ns]
K35	K35	Ethanol	430	13,200	no	< 0.1	—	Toluene	410	495	60
K6-207	3-DAB	PB 7.4	455	8,600²	700	2	1.5	PB + BSA 6 mg/mL	465	637	24	6.5
K6-1037	K37	Ethanol	449	29,500³	630	0.7		Toluene	434	540	49
K8-1351	Square-660-mono-carboxy	PB 7.4	658	182,000	678	3		PB + BSA 6 mg/mL	679	696	24
K8-1380	Seta-660-ammonium	PB 7.4	658	150,000	678	2		PB + BSA 6 mg/mL	685	701	34

¹ Solvent system:

² Ethanol
³ Toluene

Frequently Used Fluorescence Excitation Sources

Biological Imaging


Dog spermatozoa stained with a mixture of K35 and K8-1400 fluorescent probes (450–490-nm band-pass excitation filter and 500-nm cutoff emission filter were used)	Dog spermatozoa stained with a mixture of K35 and K8-1400 fluorescent probes (545–580-nm band-pass excitation filter and 610–800-nm band-pass emission filter were used)


Dog spermatozoa stained with K35 fluorescent probe (450–490-nm band-pass excitation filter and 500-nm cutoff emission filter were used)	Dog spermatozoa stained with a mixture of K8-1412 fluorescent probes (595–650-nm band-pass excitation filter and 670–740-nm band-pass emission filter were used)

Last modified: 01/02/09

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