Descrition & Target

Biotin-PEG4-tyramide

Descrition & Target

Biotin-PEO₂-PPO₂-amine trifluoroacetic acid (TFA) salt is a water soluble biotin derivative with an amine group.
<ul>
<li>White solid soluble in water or DMSO</li>
<li>Store at 4°C</li>
<li>C₂₂H₃₉F₃N₄O₇S</li>
<li>MW: 560.63</li>
</ul>

Descrition & Target

Biotin-PEO₃-amine is a water soluble biotin derivative that can be readily coupled to activated carboxylic acids. <ul> <li>White solid soluble in water or DMSO</li> <li>Store at -20°C</li> <li>C₁₆H₃₀N₄O₄S</li> <li>MW: 374.5</li> </ul>

Descrition & Target

Biotin-PEO₄-amine is a water soluble biotin derivative that can be readily coupled to activated carboxylic acids.
<ul>
<li>White solid soluble in water or DMSO</li>
<li>Store at 4°C</li>
<li>C₂₀H₃₅F₃N₄O₇S</li>
<li>MW: 532.58</li>
</ul>

Descrition & Target

Biotin-PEO₄-propionate SE (Biotin-PEO₄-propionate succinimidyl ester) is a water soluble biotin derivative that can be readily coupled to primary or secondary amines. <ul> <li>White solid soluble in water or DMSO</li> <li>Store at -20°C</li> <li>C₂₅H₄₀N₄O₁₀S</li> <li>MW: 588.7.</li> </ul>

Descrition & Target

Biotin-PEO₄-hydrazide is a water-soluble biotin derivative capable of reacting with aldehydes or ketones to form hydrazones. <ul> <li>White solid soluble in water</li> <li>Store at 4°C</li> <li>C₂₁H₃₉N₅O₇S</li> <li>MW: 505.63</li> </ul>

Descrition & Target

Biotin-PEO₄-maleimide is a water soluble biotin derivative that can be readily coupled to thiols.
<ul>
<li>White solid soluble in water or DMSO</li>
<li>Store at -20°C</li>
<li>C₂₇H₄₃N₅O₈S</li>
<li>MW: 597.73</li>
</ul>

Descrition & Target

We developed biotin-rhodamine 110 as an alternative to biotin-4-fluorescein (90062) and fluorescein biotin (80019), both of which have been used for detection of biotin binding sites and the degree of biotinylation of proteins, and for the measurement of avidin and streptavidin in crude biological samples. In addition, biotin-rhodamine 110 can be used as a polar tracer to study the morphology of cells, similar to the use of Lucifer Yellow cadaverine biotin-X has absorption and emission wavelengths similar to those of fluorescein. However, the spectra and fluorescent quantum yield of rhodamine 110 are relatively unaffected by pH (pH 4-9), whereas the fluorescence of fluorescein is significantly reduced at acidic pH. Moreover, rhodamine 110 is much more photostable than fluorescein, making biotin-rhodamine 110 a better choice for studies where prolonged exposure to light may be necessary. Also see our CF&reg; Dye Biotin conjugates, with superior brightness and photostability.
<ul>
<li>&lamba;_Ex/&lamba;_Em (MeOH) = 502/524 nm</li>
<li>Orange red solid soluble in DMF or DMSO</li>
<li>Store at 4°C and protect from light, especially in solution</li>
<li>C₄₁H₅₀N₆O₉S</li>
<li>MW: 802.94</li>
</ul>

Descrition & Target

Biotin-X cadaverine (5-(((N-(Biotinoyl)amino)hexanoyl)amino) pentylamine, free base) can be coupled directly to activated carboxylic acid esters without the use of a base.
<ul>
<li>White solid soluble in DMSO</li>
<li>Store at 4°C</li>
<li>C₂₁H₃₉N₅O₃S</li>
<li>MW: 441.63</li>
</ul>

Descrition & Target

Biotin-X cadaverine trifluoroacetic acid salt (5-(((N-(biotinoyl)amino)hexanoyl)amino) pentylamine, trifluoroacetic acid salt) can be coupled to activated carboxylic acid esters or sulfonyl chlorides in the presence of a base or in a basic buffer. Also see biotin-X cadaverine free base.
<ul>
<li>Tan solid soluble in DMSO</li>
<li>Store at 4°C</li>
<li>C₂₃H₄₀F₃N₅O₅S</li>
<li>MW: 555.65</li>
</ul>

Descrition & Target

Biotin-X NTA (Biotin-X nitrilotriacetic acid, tripotassium salt) is used to detect histidine-tagged proteins (as little as 0.1 pmol) immobilized on nitrocellulose membranes. Biotin-X NTA can be removed from the histidine-tagged protein at pH 4.8, allowing the blot to be reanalyzed with another probe. <ul> <li>White solid soluble in water</li> <li>Store at 4°C</li> <li>C₂₆H₄₀K₃N₅O₉S</li> <li>MW: 715.98</li> </ul>

Descrition & Target

Biotin-X NTA [Biotin-X nitrilotriacetic acid, potassium salt] *CAS 856661-92-2*

Descrition & Target

Biotin-X free acid (6-((Biotinoyl)amino)hexanoic acid) can be easily converted to the mixed anhydride form, which is more reactive than the succinimidyl ester and thus can be used to react with aromatic amines or sterically hindered amines.
<ul>
<li>White solid soluble in DMSO and moderately soluble in DMF</li>
<li>Store at 4°C</li>
<li>C₁₆H₂₇N₃O₄S</li>
<li>MW: 357.47</li>
<li>[72040-64-3]</li>

Descrition & Target

Biotin-X succinimidyl ester (6-((Biotinoyl)amino)hexanoic acid succinimidyl ester) is readily coupled to a primary or secondary amine under mild conditions. <ul> <li>White solid soluble in DMSO and moderately soluble in DMF</li> <li>Store at -20°C</li> <li>C₂₀H₃₀N₄O₆S</li> <li>MW: 454.54</li> <li>[72040-63-2]</li> </ul>

Descrition & Target

Biotin-X, succinimidyl ester *CAS 72040-63-2*