XFD568 is manufactured by AAT Bioquest, and it has the same chemical structure of Alexa Fluor® 568 (Alexa Fluor® is the trademark of ThermoFisher). It is a bright orange-fluorescent dye optimal for use with the frequency-doubled Nd:YAG laser line. XFD568 dye is water soluble and pH-insensitive from pH 4 to pH 10. The NHS ester (or succinimidyl ester) of XFD568 is the most convenient amine-reactive form for conjugating this dye to a protein or antibody.

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Unit size	1 mg 5 mg
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Additional ordering information

Telephone	1-800-990-8053
Fax	1-800-609-2943
Email	sales@aatbio.com
International	See distributors
Bulk request	Inquire
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Shipping	Standard overnight for United States, inquire for international

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Physical properties

Molecular weight	791.80
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.45
Correction Factor (280 nm)	0.46
Extinction coefficient (cm ^-1 M ^-1)	91300
Excitation (nm)	579
Emission (nm)	603
Quantum yield	0.69¹

Storage, safety and handling

H-phrase	H303, H313, H333
Hazard symbol	XN
Intended use	Research Use Only (RUO)
R-phrase	R20, R21, R22
Storage	Freeze (< -15 °C); Minimize light exposure
UNSPSC	12171501
CAS	247145-38-6

Spectrum

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Product family

Name	Excitation (nm)	Emission (nm)	Extinction coefficient (cm ^-1 M ^-1)	Correction Factor (260 nm)	Correction Factor (280 nm)
XFD488 NHS Ester Same Structure to Alexa Fluor™ 488 NHS Ester	499	520	71000	0.30	0.11
XFD350 NHS Ester Same Structure to Alexa Fluor™ 350 NHS Ester	343	441	19000	0.25	0.19
XFD532 NHS Ester Same Structure to Alexa Fluor™ 532 NHS Ester	534	553	81000	0.24	0.09
XFD594 NHS Ester Same Structure to Alexa Fluor™ 594 NHS Ester	590	618	90000	0.43	0.56
XFD555 NHS Ester Same Structure to Alexa Fluor™ 555 NHS Ester	553	568	150000	0.08	0.08
XFD647 NHS Ester Same Structure to Alexa Fluor™ 647 NHS Ester	650	671	239000	0.00	0.03
XFD680 NHS Ester Same Structure to Alexa Fluor™ 680 NHS Ester	681	704	184000	0.00	0.05
XFD700 NHS Ester Same Structure to Alexa Fluor™ 700 NHS Ester	696	719	192000	0.00	0.07
XFD750 NHS Ester Same Structure to Alexa Fluor™ 750 NHS Ester	752	776	240000	0.00	0.04
XFD546 NHS Ester Same Structure to Alexa Fluor™ 546 NHS Ester	561	572	112000	0.21	0.12
XFD514 NHS Ester Same Structure to Alexa Fluor™ 514 NHS Ester	518	543	80000	0.31	0.18
XFD660 NHS Ester [equivalent to Alexa Fluor® 660 NHS Ester]	663	691	132000	-	-
QXY21 NHS ester [equivalent to QSY-21 NHS ester]	-	-	89000¹	-	0.32
Cy5DIGE NHS ester	651	670	250000¹	0.02	0.03
Cy2DIGE NHS ester	492	508	150000	0.08	0.15
Cy3DIGE NHS ester	555	569	150000¹	0.07	0.073
QXY7 NHS ester [equivalent to QSY-7 NHS ester]	-	-	90000¹	-	0.22
Cy3B NHS ester	560	571	120000¹	0.048	0.069
CypHer5E NHS Ester	643	660	-	-	-
CypHer7E NHS Ester	748	769	-	-	-
Show More (11)

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