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3Â¥2010-05-11 23:18:25
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ÉϺ£Éú¹¤ÓÐÉúÎïËØ±ê¼ÇÊÔ¼ÁÂô Biotin BMCC Description: ((1-Biotinamido)-4-[4'-(maleimidomethyl)cyclohexanecarboxamido]hexane) MW 533.7 Purity > 95% on TCL Spacer arm 32.6 angstroms. Maleimide reacts with thiol groups to form a thioether link Reaction pH: acidic or neutral pH Dissolve in DMF and DMSO. Note: The reaction avoids potential modification of tyrosine groups that can inactivate biological activity Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ BSB222 50mg 1,855 ½ø¿Ú·Ö×° Biotin LC-Hydrazide Description: MW 371.5 Purity > 95% on TLC Spacer arm 24.7 angstroms. Dissolve in DMSO before adding to aqueous buffer Reaction pH: 4-6 Longer spacer arm than biotin hydrazide helps prevent steric hindrances Requires the use of sodium periodate to generate carbonyl groups£¬Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ BSB220 50mg 1,098 ½ø¿Ú·Ö×° Iodoacetyl LC Biotin Description: (N-Iodoacetyl-N-biotinylhexylenediamine) Forms a hydrazone bond. MW 510.4 Purity > 95% on TLC Spacer arm 27.1 angstroms. Reaction pH: 7.8-8.5 4-6 Membrane Permeable Dissolve in DMSO before adding to aqueous buffer. Reacts specifically with thiol groups to form a stable thiol-ether bond£¬Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ ISB218 50mg 1,325 ½ø¿Ú·Ö×° NHS Biotin Description: (N-Hydroxysuccinimidobiotin ester)C14H19N3O5S MW 341.4 Purity > 95% on TLC Spacer arm 13.5 angstroms. Reaction pH: 7-9 Membrane Permeable Soluble in DMF DMSO, not in water. CAS# 35013-72-0,Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ HSB212 50mg 250mg 258 1,072 ½ø¿Ú ·Ö×° NHS LC Biotin Description: (Succinimidyl-6-(biotinamido)hexanoate)MW 455.5 Purity > 95% on TLC Spacer arm 22.4 angstroms. NHS LC Biotin has an extended spacer arm and reduces steric hindrance when binding several biotinylated molecules to one avidin complex. Reaction pH: 7-9 Membrane Permeable. Soluble in DMF DMSO before use. CAS# 72040-63-2 Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ SSB215 [72040-63-2] 50mg 1,120 ½ø¿Ú·Ö×° Sulfo-NHS-Biotin Description: (Sulfosuccinimidobiotin)MW 443.4 Purity > 95% on TLC Spacer arm 13.5 angstroms. Reaction pH: 7-9 Membrane Permeable Soluble in water. Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ SSB213 [119616-38-5] 50mg 1,260 ½ø¿Ú·Ö×° Sulfo NHS LC Biotin Description: (Sulfosuccinimidyl-6-(biotinamido)hexanoate) MW 556.6 Purity > 94% on TCL Spacer arm 22.4 angstroms. Reaction pH: 7-9 Membrane Permeable Soluble in water. Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ SSB214 100mg 1,900 ½ø¿Ú·Ö×° Sulfo NHS SS Biotin Description: (Sulfosuccinimidyl-2-(biotinamido)ethyl-1,3-dithiopropionate) MW 606.7 Purity > 95% on TLC Spacer arm 24.3 angstroms. Disulfide bond in the spacer arm is cleavable using reducing agents such as TCEP and DTT Cleavable water soluble analog to NHC LC Biotin Water-soluble. Store: -15¡«-20¡æ ±àºÅ °ü×° ¼Û¸ñ ²úµØ BSB216 50mg 1,197 ½ø¿Ú·Ö×° |
4Â¥2010-12-06 17:50:43
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5Â¥2011-12-26 22:35:01














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