L-4-Hydroxyproline is an amino acid derivative supplied at min. 99 % purity for biochemistry, with CAS number 51-35-4, EG nr. 200-091-9 and empirical formula C₅H₉NO₃. The molar mass is 131,13 g/mol and the density is 1,479 g/cm³, supporting accurate preparation of stock solutions and reaction mixtures in biochemical workflows. This grade is packed as 5 g in glass, suitable for laboratory weighing and controlled dispensing. L-4-Hydroxyproline is widely used in peptide chemistry, collagen-related research and metabolic studies where a defined stereochemical form and high assay are required. The material from manufacturer Carl ROTH fits catalogues of fine chemicals for life-science and analytical laboratories that need traceable identity data alongside practical pack sizes. Clear specification of purity, formula and physical constants helps method documentation and batch records. Use is intended for professional biochemistry environments handling solid reagents under standard laboratory practice. This article belongs on Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents. Key features Assay: ≥99.0 % Specific rotation [α]25D (4 % in H2O): -77° to -73° Enantiomeric purity: ≤0.5 % CAS number: 51-35-4 Pack size: 5 g glass EG nr.: 200-091-9 Purity: min. 99 % Empirical formula: C₅H₉NO₃ Molar mass: 131,13 g/mol Technical Information Sheet: Safety Data Sheet:
