CP-SiR chelator 58 SMILES [N-]=[N+]=NCCOCCOCCOCCOCCOCCNC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)

58 SMILES [N-]=[N+]=NCCOCCOCCOCCOCCOCCNC1=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

393 SMILES OCCCCCCOC1=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

NCCCCCNC1=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

338 SMILES OC(=O)CCC(=O)NC1=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

697 SMILES OC(=O)CN1CCN(CC(O)=O)CCN(CC(=O)NCCOCCOCCOCCOCC#C)CCN(CC(O)=O)CC1 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

CP-SiR chelator 58 SMILES [N-]=[N+]=NCCOCCOCCOCCOCCOCCNC1=C2C(=O)N(C3CCC(=O)NC3=O)C(=O)C2=CC=C1 Purity (HPLC)SNAP tag is a self labeling protein derived from human O6 alkylguanine DNA alkyltransferase. At 20 kDa, SNAP tag is smaller than HaloTag (33 kDa), potentially reducing interference with the tagged proteins function. SNAP tag reacts with covalently with benzylguanine (BG)or chloropyrimidine (CP) derivatives, forming a stable thioether bonds that ensures durability for long term experiments or harsh conditions. SNAP tag can be used alongside other tags