Succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate

Succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate

Names
IUPAC name Succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate
Other names SMCC, 4-(N-maleimidomethyl)cyclohexanecarboxylic acid N-succinimidyl ester
Identifiers
CAS Number	64987-85-5 Y
3D model (JSmol)	Interactive image
ChemSpider	111419 Y
InChI InChI=1S/C16H18N2O6/c19-12-5-6-13(20)17(12)9-10-1-3-11(4-2-10)16(23)24-18-14(21)7-8-15(18)22/h5-6,10-11H,1-4,7-9H2 Key: JJAHTWIKCUJRDK-UHFFFAOYSA-N
SMILES O=C(C1CCC(CN2C(C=CC2=O)=O)CC1)ON3C(CCC3=O)=O
Properties
Chemical formula	C16H18N2O6
Molar mass	334.33 g·mol−1
Appearance	White solid
Melting point	175 °C (347 °F; 448 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate (SMCC) is a heterobifunctional amine-to-sulfhydryl crosslinker, which contains two reactive groups at opposite ends: NHS-ester and maleimide, reactive with amines and thiols respectively. SMCC is often used in bioconjugation to link proteins with other functional entities (fluorescent dyes, tracers, nanoparticles, cytotoxic agents). For example, a targeted anticancer agent – trastuzumab emtansine (antibody-drug conjugate containing an antibody trastuzumab chemically linked to a highly potent drug DM-1) – is prepared using SMCC reagent.