【CAS】56-85-9 Molecular formula:C5H10N2O3 Relative molecular mass:146.146
構造式：
一．
L-glutamine is a white crystalline powder that is soluble in water and has stable properties. It is a conditionally essential amino acid for the human body and has the functions of regulating immunity, promoting intestinal health and muscle repair.
二．
| パラメータ | 単位 | 仕様（食品グレード） |
| 外観 | - | 白色結晶性粉末 |
| Assay (C₅H₁₀N₂O₃) | % (w/w) | ≥ 98.5 |
| Specific Rotation (α) | ° | +6.3° to +7.3° (20°C, 1% in H₂O) |
| 乾燥減量 | % (w/w) | ≤ 0.2 |
| 点火時の残留物 | % (w/w) | ≤ 0.1 |
| 重金属（鉛として） | mg/kg | ≤ 10 |
| ヒ素（As） | mg/kg | ≤ 1 |
| 鉄（Fe） | mg/kg | ≤ 30 |
| 塩化物 (Cl-) | % (w/w) | ≤ 0.05 |
| 硫酸塩 (SO₄-) | % (w/w) | ≤ 0.03 |
| Ammonium (NH₄⁺) | % (w/w) | ≤ 0.02 |
| pH（1%溶液） | - | 4.5–6.0 |
| 微生物学的限界 | - | 総plate count ≤ 1000 CFU/g; 病原菌なし |
三.適用範囲と使用方法：.
Health food: As an athletic nutrition supplement, it helps relieve fatigue and enhance endurance.
四．
この製品の包装は1バケット25キログラムである。
It should be stored in a sealed container in a cool and dry place (Suggested temperature≤25℃， Humidity≤60%)， protected from light and moisture， and kept away from oxidants. The shelf life of the original unopened package is usually 24 months. After opening, it should be used as soon as possible. During transportation， avoid high temperatures or severe vibrations and ensure compliance with the food-grade storage standards of the GB standard.
