Texas Red PEG3 alkyne Size:1mg [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%

[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

46 SMILES: CN(C)C1=CC=C2C(OC3=CC(C=CC3=C2C2=CC=C(C=C2C([O-])=O)C(O)=O)=[N+](C)C)=C1

57 SMILES: CN(C)C1=CC=C2C(OC3=CC(C=CC3=C2C2=CC(=CC=C2C([O-])=O)C(=O)NCCCN=[N]#N)=[N+](C)C)=C1 Purity (HPLC): ≥ 95% Shipping Conditions: room temperature Storage Conditions: Refrigerated Regulatory Statement: For Research Use Only

NCCOCCNC1=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

- CAS Number: 2307477-23-0 Molecular Formula: C18H22ClN3O5 Molecular Weight: 395

Texas Red PEG3 alkyne Size:1mg [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%Sulforhodamine 101 PEG3 alkyne (Texes Red PEG3 alkyne) is an excellent azide reactive fluorescent reagent for labeling azide containing biological molecules through click chemistry. The conjugate has better solubility than the parent dye carboxyrhodamine and its long PEG spacer should reduce any steric effect of the dye on the molecule to be labelled. Sulforhodamine 101 emits at a longer wavelength than does either Tetramethylrhodamine or