Description

Dl-Histidine CAS NO 4998-57-6 is a racemic mixture of the essential amino acid histidine, serving as a versatile building block in biochemical synthesis and industrial applications. This compound is critical for research and development in life sciences, where it is used to study enzyme function, metabolic pathways, and as a precursor for more complex molecules. It is primarily sought by manufacturers in the pharmaceutical, nutraceutical, and biochemical research sectors for its role in peptide synthesis and as a standard in analytical chemistry.

Application

• Pharmaceutical Intermediates: Used as a chiral precursor in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Biochemical Research: Employed as a standard and reagent in enzymatic studies, metabolic research, and cell culture media supplementation.
• Nutraceutical Formulations: Incorporated into specialized dietary supplements and clinical nutrition products requiring amino acid components.
• Peptide Synthesis: Serves as a fundamental raw material in solid-phase and solution-phase peptide synthesis for research and development.
• Cosmetic Ingredients: Utilized in the formulation of high-end skin care products for its potential role in moisturization and skin barrier function.
• Food Science Research: Applied in studies related to flavor enhancement, Maillard reaction chemistry, and nutritional analysis.

Basic Information

Product Name	Dl-Histidine
CAS No.	4998-57-6
Molecular Formula	C6H9N3O2
Molecular Weight	155.16 g/mol
Synonyms	DL-Histidine; (±)-Histidine; rac-Histidine; Histidine, DL-; 2-Amino-3-(1H-imidazol-4-yl)propanoic acid; H-DL-His-OH; NSC 76064; Histidine racemic mixture
EINECS	225-668-3

Quality Control

Our Dl-Histidine is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial use. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Optical Rotation	± 0.3° (c=1 in H2O)
Loss on Drying	≤ 1.0%
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.