L-Selenomethionine

L-Selenomethionine

Nombre del producto L-Selenomethionine
Número CAS 3211-76-5
Sinónimos (S)-2-Amino-4-(methylseleno)butyric acid; L-Selenomethionine; Se-Methyl-L-selenocysteine
Fórmula molecular C5H11NO2Se
Peso molecular 196.11 g/mol
Apariencia Polvo cristalino de color blanco a blanquecino
Ensayo (HPLC) ≥98,01 TP3T
Specific Rotation [α]D20 +18° to +22° (c=1, H2O)
Pérdida por secado ≤0,51 TP3T
Residuo tras la combustión ≤0,11 TP3T
Metales pesados ≤10 ppm
Arsenic ≤2 ppm
Solubilidad Soluble in water, slightly soluble in ethanol
Tamaño de las partículas 98% pass 80 mesh
Paquete 25 kg fiber drum with double polyethylene bags

L-Selenomethionine Structure

Sinónimos: (S)-2-Amino-4-(methylseleno)butyric acid; L-Selenomethionine; Se-Methyl-L-selenocysteine; L-Selenomethionine.

L-Selenomethionine has become a preferred selenium source in premium dietary supplements and clinical nutrition, driven by its superior bioavailability and ability to support a wide range of physiological functions. As an essential trace element, selenium plays a critical role in antioxidant defense, thyroid hormone metabolism, and immune function. The L-isomer is the natural form found in food and is more efficiently utilized by the body compared to inorganic selenium salts.

L-Selenomethionine is a selenoamino acid where selenium replaces the sulfur atom in methionine. It is naturally present in Brazil nuts, grains, and certain vegetables, but for commercial use, it is produced through chemical synthesis or fermentation. The compound is highly stable and water-soluble, making it ideal for various formulations.

Our L-Selenomethionine is standardized to ≥98.0% purity (HPLC), ensuring consistent potency and reliability. It is widely used in nutraceuticals, functional foods, and pharmaceutical applications targeting selenium supplementation, antioxidant support, and thyroid health.

Descripción general y composición del producto

L-Selenomethionine is a white to off-white crystalline powder with a molecular formula of C5H11NO2Se and a molecular weight of 196.11 g/mol. It is the organic form of selenium, where selenium is covalently bound to methionine, enhancing its absorption and retention in the body. This form is readily incorporated into proteins, serving as a selenium reservoir.

The product is manufactured under strict quality control to meet USP/EP standards. It is available in various particle sizes to suit different formulation needs, ensuring optimal flow and blendability.

Aplicaciones principales

  • Dietary Supplements: Used in tablets, capsules, and softgels for selenium supplementation, often combined with vitamins and minerals.
  • Clinical Nutrition: Added to enteral and parenteral nutrition formulas to prevent selenium deficiency in patients.
  • Functional Foods: Incorporated into fortified foods and beverages to enhance nutritional value.
  • Pharmaceuticals: Used in prescriptions for selenium deficiency and as an adjunct in antioxidant therapies.
  • Nutrición animal: Supplemented in animal feed to improve health and productivity.

Calidad y normas

Parámetro Especificaciones
Ensayo (HPLC) ≥98,01 TP3T
Pérdida por secado ≤0,51 TP3T
Metales pesados ≤10 ppm
Arsenic ≤2 ppm
Límites microbianos Total aerobic count ≤1000 CFU/g; Yeast & Mold ≤100 CFU/g; E. coli absent
Residuo tras la combustión ≤0,11 TP3T

Embalaje y suministros

  • Embalaje: 25 kg fiber drum with double polyethylene bags, or as per customer request.
  • Cantidad mínima de pedido: 1 kg
  • Plazo de entrega: 3-5 días laborables (artículos en stock)
  • Documentación: COA, MSDS, TDS available upon request.

Solicitud de presupuesto

MANTENTE EN CONTACTO

Solicitud de presupuesto

Nuestra dirección

Room,5-0203, Unit 5, Beiyuanmen Street,Xi'an,Shaanxi,China

✅ ×