Intermediates

L-Norleucine

  • CAS No.327-57-1
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity L-Norleucine (CAS 327-57-1) for use as a chiral building block and pharmaceutical intermediate in API synthesis.

Request Bulk Pricing

Product Technical Details

Product Overview

L-Norleucine is a non-proteinogenic amino acid with the molecular formula C6H13NO2 and a molecular weight of 131.17 g/mol. It serves as a valuable chiral synthon in the development of complex active pharmaceutical ingredients (APIs) and peptide-based therapeutics. This compound is structurally analogous to leucine but features a linear hexanoic side chain, offering distinct steric and electronic properties beneficial in medicinal chemistry.

Specifications

Molecular FormulaC6H13NO2
Molecular Weight131.173 g/mol
Melting Point300°C
Specific Rotation [α]D20+23.5° to +24.5° (c=4, 6M HCl)
Assay98.5%–101.0%
Solubility in 3M HClColorless and clear (c=4)
Loss on Drying≤0.3%
Residue on Ignition≤0.1% (as sulfate)
Heavy Metals (as Pb)≤10 ppm
Arsenic (As2O3)≤1 ppm
Other Amino AcidsNot detected by TLC (20 μg spotted)

Industrial Applications

L-Norleucine is primarily employed as a high-value intermediate in the synthesis of advanced organic molecules, particularly within the pharmaceutical and biotechnology sectors. Its key applications include:

  • Serving as a chiral building block in the construction of peptidomimetics and modified peptides.
  • Acting as a structural surrogate for natural amino acids to enhance metabolic stability or bioavailability in drug candidates.
  • Supporting research in enzyme inhibition studies and structure-activity relationship (SAR) modeling.
  • Facilitating the development of novel neurological therapeutics through stereoselective synthesis routes.

Manufactured under stringent quality control protocols, our L-Norleucine meets international pharmacopeial standards and is suitable for GMP-compliant processes. The product is supplied in 25 kg fiber drums with custom packaging available upon request. Store in a cool, dry, and well-ventilated area with the container tightly sealed to maintain integrity and prevent moisture uptake.