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SMPT (4-succinimidyloxycarbonyl-alpha-methyl-alpha(2-pyridyldithio)toluene)

产品编号:3240501
CAS NO:112241-19-7
包装规格:50 MG
产品类别:进口试剂
品牌:Sigma-Aldrich
优惠价:立即咨询
产品编号包装单位单价(元)国内现货国外库存询价单
324050150 MG4030
产品别名

112241-19-7

SMPT (4-succinimidyloxycarbonyl-alpha-methyl-alpha(2-pyridyldithio)toluene)

结构式
基本信息
Empirical Formula【经验(实验)分子式】
C18H20N2O2S2
Molecular weight
360.49
MDL number
MFCD00083161
PubChem Substance ID【PubChem化学物质编号】
329768810
NACRES
NA.22
General description【一般描述】
SMPT is a heterobifunctional sulfhydryl- and amine-reactive cross-linker. SMPT is used often for conjugating a toxin molecule to a monoclonal antibody directed against a cell-surface antigen. These immunotoxins produced with SMPT are highly potent as the cleavable disulfide imparts increased cytotoxicity compared to conjugates without a cleavable bond, such as those produced with SPDP. Also, next to the pyridine-2-thione in the spacer arm are a benzene ring and a methyl group adjacent to a carbon that hinders the disulfide bond, allowing exceptional conjugate stability in vivo. SMPT has the added benefit of being more stable to hydrolysis in aqueous solutions than other NHS cross-linkers.
Features and Benefits【特点和优势】
  • Reactive groups: NHS ester and pyridyldithiol
  • Reactive towards: amino and sulfhydryl groups
  • Cleavable with disulfide reducing agents
  • Water-insoluble (dissolve first in DMF or DMSO)
  • Contains a hindered disulfide bond; has formed immunotoxins with improved stability
  • In vitro, an SMPT conjugate was as effective as conjugates formed with SPDP and 2-IT
  • Compare to other varieties of SPDP-type reagents, including pegylated forms
Caution【注意】
This product is sensitive to moisture. The vial is packaged in a resealable bag with a desiccant to reduce exposure to moisture. After cold storage, equilibrate the vial to room temperature before opening to reduce condensation inside the vial. Make fresh solutions. Storage of stock solutions is not recommended. After use, return the vial to the resealable bag. Close the bag and store the product at the recommended temperature.
产品性质
Quality Level【质量水平】
100
Assay【测定】
≥90%
form【形式】
powder
mol wt【分子量】
388.46
reaction suitability
reagent type: cross-linking reagent
storage condition【储存条件】
desiccated
solubility【溶解性】
DMSO or DMF: soluble
shipped in【运输】
ambient
storage temp.【储存温度】
2-8℃
SMILES string
O=C(ON1C(CCC1=O)=O)C2=CC=C(C(SSC3=CC=CC=N3)C)C=C2
InChI
1S/C18H16N2O4S2/c1-12(25-26-15-4-2-3-11-19-15)13-5-7-14(8-6-13)18(23)24-20-16(21)9-10-17(20)22/h2-8,11-12H,9-10H2,1H3
InChI key
GKSPIZSKQWTXQG-UHFFFAOYSA-N
安全信息
Storage Class Code【储存分类代码】
13 - Non Combustible Solids
WGK
WGK 3
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