N-Acetyl-β-neuraminic Acid Methyl Ester hydrate Product Catalog # Size Price (USD) Quantity N-Acetyl-β-neuraminic Acid Methyl Ester hydrate290990-5G5 gPlease InquirePlease InquireN-Acetyl-β-neuraminic Acid Methyl Ester hydrate290990-25G25 gPlease InquirePlease InquireN-Acetyl-β-neuraminic Acid Methyl Ester hydrate290990-100G100 gPlease InquirePlease Inquire Description CAS #: 50998-13-5 Molecular Formula: C12H21NO9.H2O Molecular Weight: 341.3