6-Bromo-2-naphthylb-D-galactoside

6-Bromo-2-naphthyl b-D-galactopyranoside 6-Bromo-2-naphthyl ?-D-galactopyranoside is a chromogenic substrate commonly used for the detection of the enzymatic activity of ?-galactosidase. It can produce a yellow precipitate upon hydrolysis by ?-galactosidase, indicating the presence of the enzyme. It is often used in molecular biology applications to detect gene expression or to monitor cloning efficiency. CAS No: 15572-30-2 Synonyms: BNGalBr-nap-b-D-gal MDL No: MFCD00064182 Chemical Formula: C16H17BrO6 Molecular Weight: 385.21 CAS Number 15572-30-2 Product Name 6-Bromo-2-naphthyl beta-D-galactopyranoside IUPAC Name (2S,3R,4S,5R,6R)-2-(6-bromonaphthalen-2-yl)oxy-6-(hydroxymethyl)oxane-3,4,5-triol Molecular Formula C16H17BrO6 Molecular Weight 385.21 g/mol InChI InChI=1S/C16H17BrO6/c17-10-3-1-9-6-11(4-2-8(9)5-10)22-16-15(21)14(20)13(19)12(7-18)23-16/h1-6,12-16,18-21H,7H2/t12-,13+,14+,15-,16-/m1/s1 InChI Key NLRXQZJJCPRATR-LYYZXLFJSA-N SMILES C1=CC2=C(C=CC(=C2)Br)C=C1OC3C(C(C(C(O3)CO)O)O)O Synonyms 6-bromo-2-naphthyl-beta-galactopyranoside, BrNapGal Canonical SMILES C1=CC2=C(C=CC(=C2)Br)C=C1OC3C(C(C(C(O3)CO)O)O)O Isomeric SMILES C1=CC2=C(C=CC(=C2)Br)C=C1O[C@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)O COA: Product name : 6-Bromo-2-naphthyl-beta-D-galactopyranoside M.F. : C 16 H 17 BrO 6 M .W. : 385.2 CAS: 15572-30-2 Items Standards Results Appearance White or slightly yellow crystal powder Complies Identification IR and HPLC Complies NMR and MS Should comply Complies Loss weight on drying Max.1% 0.1% Heavy metal Max. 20ppm Complies Any other impurity Max. 1% Complies Total impurity Max. 2% Complies Assay Min. 98% 99.8% References: 1. Mutwakil MHAZ, Reader JP, Holdich DM, et al., Arch. Envir. Contam. Toxicol. 1997, Vol32, No2, p146-153