Product 6939

In Stock

Catalog ID 6939 / 10 mg

B4F

AKA: Biotin-4-fluorescein

Formula	Weight	CAS#
C₃₃H₃₂N₄O₈S	644.70	1032732-74-3

1-4 - ¤ 146/Unit 5-24 - ¤ 129/Unit

For 25+ Units, Contact us.

B4F [Biotin-4-fluorescein] is a convenient biotinylated fluorescent probe for accurate measurement of avidin and streptavidin and for unlabeled biotin in homogeneous fluorescence assays. It binds to avidin more readily than conventional fluorescein biotin.

Product Size	10 mg
Form	Yellow Solid
Absorption (estimated)	Wavelength (λmax) 494 ± 3 nm (Buffer pH10)
Fluorescence (estimated)	Wavelength (λmax) 524 ± 4 nm (*Buffer pH10)
Storage conditions	Refrigerate: Store at 4-8°C (Ref) Protect from moisture (D) Protect from light (L)
MDL#

* Biotin-4-fluorescein

Fluorescent Probes and Related Products:	Fluorescein, Naphthofluorescein and seminaphthofluorescein
Biotin/Desthiobiotin and Related Products:	Fluorescent Probes
Natural Products and Their Fluorescent/Non-Fluorescent Conjugates:	Fluorescent/Non-Fluorescent Conjugates