H-Hyp-OH Product Catalog # Size Price (USD) Quantity H-Hyp-OH180801-100G100 g$128.00 - H-Hyp-OH-100g quantity + H-Hyp-OH180801-500G500 g$294.00 - H-Hyp-OH-500g quantity + Add to cart Description Synonym: trans-L-4-Hydroxyproline CAS #: 51-35-4 Molecular Formula: C5H9NO3 Molecular Weight: 131.1