Crosslinking Reagents
Thermo Scientific™ DMP (dimethyl pimelimidate)
Crosslink amines to amines with dimethyl pimelimidate (CAS 58537-94-3); composed of imidoester groups and a membrane-permeable, 7-atom spacer arm.
Thermo Scientific™ Sulfo-SDA (Sulfo-NHS-Diazirine) (sulfosuccinimidyl 4,4'-azipentanoate)
Very short to mid-length (3.9 to 13.5A), amine-to-anything crosslinkers; NHS-ester and diazirine reactive groups; photoactivate with UV light (Amax 330 to 370nm).
Thermo Scientific™ BS(PEG)5 (PEGylated bis(sulfosuccinimidyl)suberate)
Crosslink amines to amines with these long (21.7A and 35.8A) crosslinkers composed of NHS-ester groups and 5-unit or 9-unit PEG spacer arms that enhance protein solubility.
Thermo Scientific™ MBS (m-maleimidobenzoyl-N-hydroxysuccinimide ester)
Crosslink amines to sulfhydryls with this short crosslinker composed of NHS-ester and maleimide groups at ends of an aromatic, 6-atom (7.3A) spacer arm.
Thermo Scientific™ Sulfo-SMCC (sulfosuccinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate), No-Weigh™ Format
Crosslink amines to sulfhydryls with this mid-length, water-soluble crosslinker made of NHS-ester and maleimide groups at ends of a cyclohexane-containing, 8-atom spacer arm.
Thermo Scientific™ SIA (succinimidyl iodoacetate)
Crosslink amines to sulfhydryls with this very short crosslinker composed of NHS-ester and iodoacetyl (haloacetyl) groups at ends of a 3-atom (1.5A) spacer arm.
Thermo Scientific™ SMPB (succinimidyl 4-(p-maleimidophenyl)butyrate)
Crosslink amines to sulfhydryls with this mid-length crosslinker composed of NHS-ester and maleimide groups at ends of an aromatic, 10-atom (11.6A) spacer arm.
Thermo Scientific™ EGS (ethylene glycol bis(succinimidyl succinate))
Crosslink amines to amines with this membrane permeable crosslinker composed of NHS-ester groups and a 16.1A hydroxylamine-cleavable spacer arm.
Thermo Scientific™ Pierce™ Premium Grade Sulfo-NHS (N-hydroxysulfosuccinimide)
Optimize applications where product integrity and risk minimization are paramount with our highest quality formulation of this N-hydroxysuccinimide modification reagent.
Thermo Scientific™ PMPI (p-maleimidophenyl isocyanate)
Short (8.7A) hydroxyl-to-sulfhydryl crosslinker; isocyanate and maleimide groups; label -OH by urethane bonds for conjugation to cysteines by thioether bonds.
Invitrogen™ Succinimidyl 3-(2-Pyridyldithio)Propionate (SPDP)
The succinimidyl ester chemically reacts with primary amines and after mild reduction of the dithiol, it can react form a disulfide with other thiols.
Thermo Scientific™ SM(PEG)12 (PEGylated, long-chain SMCC crosslinker)
Crosslink amines to sulfhydryls with these crosslinkers containing NHS-ester and maleimide groups at ends of water-soluble polyethylene glycol spacer arms (17.6 to 95.2A).