P1h (AggFluor Halotag Ligand) Size:100nmol 677 SMILES: [O-]C(=O)C1=CC(=CC=C1C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)C(=O)NCC#C Purity (HPLC):

677 SMILES: [O-]C(=O)C1=CC(=CC=C1C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)C(=O)NCC#C Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

originally isolated from Rhodococcus rhodochrous

232 SMILES OC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=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

Product Name Biotin-PEG2-azide Synonyms CAS Number 945633-30-7 Related CAS Molecular Formula C16H28N6O4S Molecular Weight 400

386 SMILES BrCCOCCOCCOCCCC1=C2CN(C3CCC(=O)NC3=O)C(=O)C2=CC=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

P1h (AggFluor Halotag Ligand) Size:100nmol 677 SMILES: [O-]C(=O)C1=CC(=CC=C1C1=C2C=C3CCC[N+]4=C3C(CCC4)=C2OC2=C3CCCN4CCCC(C=C12)=C34)C(=O)NCC#C Purity (HPLC):P1h is a HaloTag ligand incorporating the fluorogenic AggFluor P1 dye. AggFluor is derived from the synthetic GFP chromophore, 4 hydroxybenzylidene imidazolinone (HBI), and belongs to the class of molecular rotor fluorophores widely used in biological imaging due to their sensitivity to environmental factors such as viscosity. When bound to properly folded proteins, AggFluors are quenched and remain non fluorescent; however, protein misfolding or