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bis-ANS is a high-affinity non-covalent extrinsic fluorescent dye used to analyze protein conformation.[1] Its predominant interaction with proteins is through its hydrophobic phenyl and naphthyl rings.[2] bis-ANS has an excitation maxima of 390 nm.[3] It has an emission maximum of 523 nm when free in solution but undergoes a blue shift with an increase in fluorescence intensity when bound to protein; for example, when bound to intestinal fatty acid binding protein (FAPB2) it has emission maxima of 484-496 nm. bis-ANS has been used to label mechanically damaged neurons in acute brain slices.4 It also potently inhibits microtubule assembly.[5],[6]
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $428 | Inquiry | Inquiry | |
| 5 mg | Inquiry | Inquiry | Inquiry | |
| 10 mg | Inquiry | Inquiry | Inquiry |
| Description | bis-ANS is a high-affinity non-covalent extrinsic fluorescent dye used to analyze protein conformation.[1] Its predominant interaction with proteins is through its hydrophobic phenyl and naphthyl rings.[2] bis-ANS has an excitation maxima of 390 nm.[3] It has an emission maximum of 523 nm when free in solution but undergoes a blue shift with an increase in fluorescence intensity when bound to protein; for example, when bound to intestinal fatty acid binding protein (FAPB2) it has emission maxima of 484-496 nm. bis-ANS has been used to label mechanically damaged neurons in acute brain slices.4 It also potently inhibits microtubule assembly.[5],[6] |
| Synonyms | bis-ANS (potassium salt), 4,4'-Dianilino-1,1'-binaphthyl-5,5'-disulfonic Acid |
| Molecular Weight | 672.85 |
| Formula | C32H22K2N2O6S2 |
| Cas No. | 65664-81-5 |
| Smiles | [K].[K].OS(=O)(=O)c1cccc2c(ccc(Nc3ccccc3)c12)-c1ccc(Nc2ccccc2)c2c(cccc12)S(O)(=O)=OjcExt:v:0:0,1:0 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||
| Solubility Information | DMSO: 30 mg/mL (44.59 mM), Sonication is recommended. DMF: 30 mg/mL (44.59 mM), Sonication is recommended. Ethanol: Slightly Soluble | |||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||
DMSO/DMF
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Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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