L-Glutamic Acid (CAS 56-86-0) is natural α-amino acid, white crystalline powder obtained by microbial fermentation. It is raw material for monosodium glutamate (MSG), food nutritional fortifier, biochemical reagent, pharma intermediate and cosmetic raw material. Available in Food Grade, Feed Grade, Pharma-BP/USP Grade. TNJ Chemical is a professional manufacturer and exporter since 2001. We guarantee high-quality products, competitive prices and thoughtful service. If you want to buy or have any other inquiries, please contact sales@tnjchem.com
General Product Data
Product Name L-Glutamic Acid
CAS Number 56-86-0
EINECS‑EC 200-293-7Synonyms L-2-Aminopentanedioic acid
Molecular Formula C5H9NO4
Molecular Weight 147.13 g/mol
Chemical Family L-type α-amino acid
Available Grade Food Grade; Feed Grade; Pharma BP/USP Grade
Physical & Chemical Characteristics
Physical form White crystalline powder
Odour Odourless, special sour tasteMelting / Decomposition point 205-213 °C (decomposes)
Solubility in water Slightly soluble in cold water; soluble in hot water; practically insoluble in ethanol, ether, acetone
Specific Rotation [α]₂₀/D +30.0° ~ +32.0° (5 M HCl)pH (saturated aqueous solution) 3.0-3.5
Bulk density 600-750 kg/m³
Processing hint Stable under normal condition; reacts with alkali to form glutamate salts (e.g. monosodium glutamate).
Quality Specification
| Test Parameter | Food Grade | Feed Grade | Pharma BP/USP Grade | Test Method |
|---|---|---|---|---|
| Assay (L‑Glutamic Acid) | 99.0‑100.5 % | ≥98.5 % | 99.0‑100.5 % | Titration |
| Specific Rotation [α]₂₀/D | +30.0° ~ +32.0° | +29.0° ~ +32.0° | +30.0° ~ +32.0° | Polarimetry |
| Loss on Drying | ≤0.5 % | ≤1.0 % | ≤0.5 % | Gravimetric |
| Residue on Ignition | ≤0.1 % | ≤0.2 % | ≤0.1 % | Gravimetric |
| Chloride (Cl⁻) | ≤0.02 % | ≤0.05 % | ≤0.02 % | Turbidimetry |
| Sulfate (SO₄²⁻) | ≤0.02 % | ≤0.05 % | ≤0.02 % | Turbidimetry |
| Heavy Metals (as Pb) | ≤10 ppm | ≤15 ppm | ≤10 ppm | AAS |
| Arsenic (As) | ≤2 ppm | ≤3 ppm | ≤2 ppm | AAS |
Main Functions & Recommended Applications
Food Industry: Raw material for producing monosodium glutamate (MSG); nutritional supplement.
Feed Industry: Feed additive for animal nutrition, improve growth performance.
Pharmaceutical: Pharmaceutical intermediate, raw material for amino-acid preparations.
Cosmetics & Biochemical: Biochemical reagent; skin‑care raw material for amino-acid formulations.Logistics & Storage Information
Packaging options: 25 kg PP woven bag / fibre‑drum with inner PE liner;
Lead-time: Samples: 7-15 working days against deposit.
Shipment modes: sea freight, air freight, international courier.
Storage condition: Keep container tightly closed. Store in cool, dry, well-ventilated warehouse, avoid moisture and direct sunlight.
Shelf‑life: 24 months under original sealed storage.
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