D-Selenomethionine Product Catalog # Size Price (USD) Quantity D-Selenomethionine351302-1G1 g$1,000.00 - D-Selenomethionine-1g quantity + D-Selenomethionine351302-5G5 g$3,000.00 - D-Selenomethionine-5g quantity + Add to cart Description Synonym: (R)-2-amino-4-(methylselanyl)butanoic acid CAS: 13091-98-0 Molecular Formula: C5H11NO2Se Molecular Weight: 196.1