A fluorescent probe
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Sulforhodamine 101 DHPE

Item No. 23235

Technical Information
Formal Name
2,3,6,7,12,13,16,17-octahydro-9-[4-[[[(7R)-4-hydroxy-4-oxido-10-oxo-7-[(1-oxohexadecyl)oxy]-3,5,9-trioxa-4-phosphapentacos-1-yl]amino]sulfonyl]-2-sulfophenyl]-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, inner salt, compd. with N,N-diethylethanamine (1:1)
CAS Number
187099-99-6
Molecular Formula
C68H101N3O14PS2 • C6H16N
Formula Weight
Purity
≥95%
A solid
SMILES
O=S(C(C=C1S([O-])(=O)=O)=CC=C1C2=C3C(C4=C(N5CCC4)C(CCC5)=C3)=[O+]C6=C(CCC7)C(N7CCC8)=C8C=C62)(NCCOP(OCC(OC(CCCCCCCCCCCCCCC)=O)COC(CCCCCCCCCCCCCCC)=O)([O-])=O)=O.CC[NH+](CC)CC
InChi Code
InChI=1S/C68H102N3O14PS2.C6H15N/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-37-62(72)81-50-54(84-63(73)38-28-26-24-22-20-18-16-14-12-10-8-6-4-2)51-83-86(74,75)82-46-41-69-87(76,77)55-39-40-56(61(49-55)88(78,79)80)64-59-47-52-33-29-42-70-44-31-35-57(65(52)70)67(59)85-68-58-36-32-45-71-43-30-34-53(66(58)71)48-60(64)68;1-4-7(5-2)6-3/h39-40,47-49,54,69H,3-38,41-46,50-51H2,1-2H3,(H-,74,75,78,79,80);4-6H2,1-3H3
InChi Key
DLENCXDZIZEKQI-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Sulforhodamine 101 DHPE is a fluorescent probe made from the conjugation of the phospholipid 1,2-dipalmitoyl-sn-glycero-3-PE (Item No. 15092) to sulforhodamine 101 (Item No. 16953), a red fluorescent dye that displays excitation/emission spectra of 586/605 nm, respectively.1,2 It integrates into phospholipid bilayers and has been used for imaging of solid supported lipid bilayers, detection of protein-ligand binding on bilayers, and to monitor colocalization of lipid probes in liposomes via resonance energy transfer (RET).1,3,4

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Jung, H., Robison, A.D., and Cremer, P.S. Detecting protein-ligand binding on supported bilayers by local pH modulation. J. Am. Chem. Soc. 131(3), 1006-1014 (2009).

    2. Nimmerjahn, A., Kirchhoff, F., Kerr, J.N., et alSulforhodamine 101 as a specific marker of astroglia in the neocortex in vivo. Nat. Methods 1(1), 31-37 (2004).

    3. Castellana, E.T., and Cremer, P.S. Imaging large arrays of supported lipid bilayers with a macroscope. Biointerphases 2(2), 57-63 (2007).

    4. Uster, P.S., and Pagano, R.E. Resonance energy transfer microscopy: Visual colocalization of fluorescent lipid probes in liposomes. Methods Enzymol. 171, 850-857 (1989).