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Thermo Scientific™ SMPT (4-succinimidyloxycarbonyl-alpha-methyl-α(2-pyridyldithio)toluene)
Crosslink amines to sulfhydryls with this crosslinker containing NHS-ester and pyridyldithiol groups at the ends of an aromatic, 6-atom (11.2A) spacer arm.
Brand: Thermo Scientific™ 21558
Description
Thermo Scientific™ Pierce SMPT is a long-chain crosslinker for amine-to-sulfhydryl conjugation via NHS-ester and pyridyldithiol reactive groups that form strong (hindered) yet cleavable (reducible) disulfide bonds with cysteine sulfhydryls.
Highlights:
- Contains a hindered disulfide bond; forms stable immunotoxins
- In vitro, an SMPT conjugate was as effective as conjugates formed with SPDP and 2-iminothiolane
- Reactive groups: NHS ester and pyridyldisulfide
- Reactive toward: amino and sulfhydryl groups

Specifications
Amine-Sulfhydryl | |
SMPT | |
No | |
Upon receipt store desiccated at 4°C. | |
Ambient | |
Chemical Labeling | |
NHS Ester, Pyridyldisulfide | |
Powder | |
DMF, DMSO | |
No |
By Thiols | |
388.46 | |
11.2 Å | |
Yes | |
Pierce™ | |
Heterobifunctional | |
Medium (10 to 30 Å) | |
50 mg | |
Standard | |
Crosslinker |
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For Research Use Only. Not for use in diagnostic procedures.