L-Methionine
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Minimum Order Quantity: 1g/10g/1kg.
Payment Terms: T/T 100% in advance.
Sample Policy: Free sample, buyer pays shipping.
Place of Origin: China
Purity: 99% Min
Other Name: 63-68-3; methionine; h-Met-oh; (S)-2-Amino-4-(methylthio)butanoic acid
Molecular Formula: C5H11NO2S
Molecular Weight: 149.208 g/mol
CAS No.: 59-51-8
Appearance: White Crystalline Powder
LOSS ON DRYING: 0.3% MAX
RESIDUE ON IGNITION: 0.4% MAX.
CHLORIDE: 0.05% MAX.
SULFATE: 0.03% MAX.
Methionine is one of nine essential amino acids in humans (provided by food), Methionine is required for growth and tissue repair. A sulphur-containing amino acid, methionine improves the tone and pliability of skin, hair, and strengthens nails. Involved in many detoxifying processes, sulphur provided by methionine protects cells from pollutants, slows cell aging, and is essential for absorption and bio-availability of selenium and zinc. Methionine chelates heavy metals, such as lead and mercury, aiding their excretion. It also acts as a lipotropic agent and prevents excess fat buildup in the liver.
L-methionine, also known as l-methionine, is the l methionine.Colorless or white glossy flake crystal or white crystalline powder,
slightly with a special odor, slightly bitter taste.Melting point 280 ~ 281℃.Unstable to strong acids, can lead to demethylation.
Soluble in water (5.6g/100mL,30℃), warm dilute ethanol, alkaline solution or dilute inorganic acid.Insoluble in ethanol, almost
insoluble in ether.
Main Function
1.L-Meliorate the balance of amino acid for metabolism and supplement the insufficiency of L-lysine.
2.L-Methionine can protection of liver function.
3.L-Methionine is one of essential amino acids constituting the human body, involved in protein synthesis.
4.It can accelerate the growth of hair and nail.
5.Functions of detoxification and strengthening the muscle activity ability.
6. Reduce the possibility of diarrhea and help to digest.
7.Enhance the body's immune ability, effective to avoid infectious disease.
Packaging Standards
To ensure product integrity and safety during global transit, we implement strict packaging standards tailored to your order volume. From laboratory samples to bulk production, your goods are secured against moisture, light, and contamination.
1g – 1kg: Sample & R&D Packs
Packaging: High-quality Aluminum Foil Bag.
Features: Vacuum-sealed option available. Provides a perfect barrier against light and moisture.
Ideal for: Samples, trial orders, and high-value active ingredients.
5kg – 10kg: Mid-Sized Cartons
Packaging: Reinforced Corrugated Carton.
Protection: Inside packed with double-layer PE plastic bags to prevent leakage.
Ideal for: Pilot production and air freight shipments.
25kg: Standard Bulk Drums
Packaging: Robust Fiber Drum (Standard Net Weight: 25kg).
Protection: Equipped with double sterile inner liners and tamper-evident seals. Designed for maximum durability and stacking stability.
Ideal for: Large-scale manufacturing and sea freight.
1kg: Professional R&D Bottle for Liquid
Packaging: HDPE or premium Fluorinated bottle.
Sealing: Triple-lock system: induction foil, internal plug, and tamper-evident cap.
Features: Ergonomic, chemical-resistant design for pouring precision and stability.
Best for: High-value actives, R&D samples, and pilot batches.
25kg: Industrial Jerrycan for Liquid
Packaging: Heavy-duty, UN-certified HDPE container.
Sealing: Precision neck with high-torque tamper-evident cap and leak-proof gaskets.
Features: Integrated handle and reinforced walls for superior stacking stability.
Best for: Bulk procurement and international sea/air freight.
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