3-{4-[(tert-butoxy)carbonyl]piperazin-1-yl}propanoic acid deuterium-labeled-carboxylic acid 6 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CO)C(C)(C)C)C=C1 Purity (HPLC)

6 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CO)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

Product Name: 5(6)-FAM PEG3 alkyne Synonyms: 5-(and 6)-Carboxyfluorescein-PEG3-alkyne CAS Number: N/A Molecular Formula: C30H27NO9 Molecular Weight: 545

Product Name: 5(6)-FAM ethylenediamine Synonyms: 5-(and 6)-carboxyfluorescein ethylenediamine CAS Number: N/A Molecular Formula: C25H19F3N2O8 (TFA salt) Molecular Weight: 532

NCC(=O)NC1=CC=C2C(CN(C3CCC(=O)NC3=O)C2=O)=C1 Purity (HPLC): 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

3-{4-[(tert-butoxy)carbonyl]piperazin-1-yl}propanoic acid deuterium-labeled-carboxylic acid 6 SMILES CC1=C(SC=N1)C1=CC=C(CNC(=O)[C@@H]2C[C@@H](O)CN2C(=O)[C@@H](NC(=O)CO)C(C)(C)C)C=C1 Purity (HPLC)Nitrogen Heterocycle Based Linker (NHBL). Binfunctional amine carboxylic acid linker. Product Name 3 {4 [(tert butoxy)carbonyl]piperazin 1 yl}propanoic acid Synonyms CAS Number 242459 97 8 Related CAS Molecular Formula C12H22N2O4 Molecular Weight 258. 318 SMILES CC(C)(C)OC(=O)N1CCN(CCC(O)=O)CC1 Purity (HPLC) >= 95% Shipping Conditions Room temperature Storage Conditions Refrigerated Shelf Life 12 months after the date of delivery Regulatory Statement