Description

Sar-L-Pro-Oh CAS NO 53298-68-3 is a high-purity amino acid derivative, specifically the L-isomer of proline, valued for its role as a critical chiral building block in organic synthesis. Its importance lies in providing a defined stereochemical center essential for constructing complex molecules with high biological activity. This product is primarily needed by pharmaceutical R&D laboratories, fine chemical manufacturers, and academic institutions engaged in peptide synthesis and the development of active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediates: Key chiral precursor in the synthesis of peptide-based drugs, enzyme inhibitors, and other bioactive compounds.
• Peptide Synthesis: Used as a protected or unprotected amino acid building block in solid-phase and solution-phase peptide chemistry.
• Asymmetric Catalysis: Serves as a ligand or catalyst component in enantioselective organic transformations.
• Biochemical Research: Employed in proteomics research, cell culture media formulation, and metabolic pathway studies.
• Cosmetic & Nutraceutical Ingredients: Potential intermediate in the production of collagen-stimulating peptides and specialized supplements.
• Agrochemical Synthesis: Building block for developing novel, chiral active ingredients with specific modes of action.

Basic Information

Product Name	Sar-L-Pro-Oh CAS NO 53298-68-3
CAS No.	53298-68-3
Molecular Formula	C5H9NO2
Molecular Weight	115.13 g/mol
Synonyms	L-Proline; (S)-Pyrrolidine-2-carboxylic acid; Pro; (-)-Proline; (S)-(-)-Proline; 2-Pyrrolidinecarboxylic acid, (S)-; L-2-Pyrrolidinecarboxylic acid; L-Azetidine-2-carboxylic acid (common misnomer)
EINECS	Contact for details

Quality Control

Our Sar-L-Pro-Oh is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity verification and impurity profiling, to ensure it meets the stringent requirements of pharmaceutical and research applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and specific tests is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Assay (HPLC)	≥ 98.5%
Optical Rotation [α]D20	-84° to -86° (c=1 in H2O)
Chiral Purity (HPLC)	≥ 99.0% (L-isomer)
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.