4-Nitrophenyl β-D-Galactopyranoside Product Catalog # Size Price (USD) Quantity 4-Nitrophenyl β-D-Galactopyranoside290926-25G25 gPlease InquirePlease Inquire4-Nitrophenyl β-D-Galactopyranoside290926-100G100 gPlease InquirePlease Inquire4-Nitrophenyl β-D-Galactopyranoside290926-500G500 gPlease InquirePlease Inquire Description CAS #: 3150-24-1 Molecular Formula: C12H15NO8 Molecular Weight: 301.3