Description

Dl-Methionine Hydrochloride CAS NO 37622-81-4 is the hydrochloride salt of the essential sulfur-containing amino acid, DL-Methionine. This form offers enhanced stability and solubility, making it a crucial raw material for formulating high-quality nutritional and pharmaceutical products. It is primarily utilized by manufacturers in the animal feed, food fortification, and pharmaceutical industries to ensure optimal growth, health, and product efficacy.

Application

• Animal Feed Additive: As a vital source of methionine in poultry, swine, and aquaculture feed to support protein synthesis, feathering, and overall animal health.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and as a component in parenteral nutrition solutions and infusion formulations.
• Food & Beverage Fortification: Incorporated into dietary supplements, clinical nutrition products, and fortified foods to address amino acid deficiencies.
• Biochemical Research: Serves as a key reagent and nutrient in cell culture media and microbiological applications within life science research.
• Cosmetic & Personal Care: Utilized in hair care and skin care formulations for its potential role in supporting keratin structure and antioxidant properties.

Basic Information

Product Name	Dl-Methionine Hydrochloride
CAS No.	37622-81-4
Molecular Formula	C5H11NO2S • HCl
Molecular Weight	199.68 g/mol
Synonyms	DL-Methionine HCl; Methionine Hydrochloride; (±)-2-Amino-4-(methylthio)butyric acid hydrochloride; DL-2-Amino-4-(methylmercapto)butyric acid hydrochloride; Methionine HCl; H-Met-OH•HCl; Racemic Methionine Hydrochloride; (RS)-Methionine hydrochloride
EINECS	253-592-4

Quality Control

Our Dl-Methionine Hydrochloride is manufactured under strict quality management systems. We offer grades compliant with relevant industry standards such as Feed Grade, Food Grade (FCC), and Pharmaceutical Grade. Each batch undergoes rigorous analytical testing, including HPLC for assay and purity. Comprehensive Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to ensure full traceability and compliance for your applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent caking and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (on dried basis)	98.5% - 101.5%
Specific Rotation	-0.05° to +0.05°
Loss on Drying	≤ 0.5%
Residue on Ignition (Sulfated Ash)	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
pH (5% solution)	4.5 - 6.0

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