SiR-PEG4-Biotin Size:1mg Product Name: DBCO NHS Synonyms:

Product Name: DBCO NHS Synonyms: CAS Number: 1353016-71-3 Molecular Formula: C23H18N2O5 Molecular Weight: 402

CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CCCCCCCCCN)C(C)(C)C)C=C1 Purity (HPLC) >= 95% Shipping Conditions Room temperature Storage Conditions Refrigerated Shelf Life 12 months after the date of delivery Regulatory Statement For Research Use Only

31 SMILES FC(F)(F)C1=CC(SC2=C(Cl)C=CC=C2Cl)=C(C(=O)N2CC3=CC=CC(C#N)=C3C2)C(=O)N1 Purity (HPLC) >= 95% Physical Appearance White solid Solubility DMSO

Ready for conjugation to a target protein ligand to form PROTACs containing 5'-substituted Lenalidomide as cereblon ligand

59 SMILES Cl

SiR-PEG4-Biotin Size:1mg Product Name: DBCO NHS Synonyms:SiR PEG4 Biotin is a fluorescent tracer used in biological research that combines the far red fluorophore with biotin. Biotin is a high affinity ligand for streptavidin and avidin proteins. PEG4 linker enhances water solubility and provides spatial separation to minimize steric hindrance during binding interactions. SiR (SiR 6 COOH, 652Ex 674Em) is a far red fluorescent dye that is bright, photostable, and cell permeable, and it is fully compatible