logo
Products
Technologies
Applications
Services
Resources
Selection Guides
About
Texas Red-X, acid
CAS 199745-67-0
Compared to Texas Red®, Texas Red-X dye that contains an additional seven-atom aminohexanoyl spacer ("X") between the fluorophore and the carboxy group. This spacer helps to separate the fluorophore from its point of attachment, potentially reducing the interaction of the fluorophore with the biomolecule to which it is conjugated. This product is a single 5-isomer, giving more reproducible results. It has the same spectral properties to Texas Red, and can be used to create bright red-fluorescent bioconjugates with excitation/emission maxima ~595/615 nm (Texas Red® is the trademark of ThermoFisher).
Chemical structure for Texas Red-X, acid.
Chemical structure for Texas Red-X, acid.
CatalogSize
Price
Quantity
46910 mg
Price
 
Physical properties

Molecular weight719.87
SolventDMF
Spectral properties

Extinction coefficient (cm -1 M -1)
116000
Excitation (nm)595
Emission (nm)613
Quantum yield
0.97
1
0.93
2
Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12171501
CAS199745-67-0
Contact us

Telephone
Fax
Emailsales@aatbio.com
InternationalSee distributors
Bulk requestInquire
Custom sizeInquire
Technical SupportContact us
Request quotationRequest
Purchase orderSend to sales@aatbio.com
ShippingStandard overnight for United States, inquire for international
Page updated on October 13, 2025