L-Phenylalanine ()とは？用途・使用量・代替品・規格
最終更新: 2026-11-14 · CAS 63-91-2 · 食品・飼料グレード
- 概要
- 名称
- L-Phenylalanine ()
- CAS 番号
- 63-91-2
- グレード
- 食品・飼料グレード
- 認証
- ISO 9001 · ISO 22000 · HACCP · FAMI-QS · Kosher · Halal · GMP · SGS
- 用途分野
- 4
- 書類
- COA · TDS · SDS
概要
L-Phenylalanine (abbreviated as L-Phe), also known as L-α-Amino-β-phenylpropionic acid or L-β-Phenylalanine, is an aromatic essential amino acid containing a benzene ring structure, and is one of the 20 basic proteinogenic amino acids. Its molecular formula is C9H11NO2, molecular weight is 165.19, CAS number is 63–91–2, and EINECS number is 200–568–1. L-Phenylalanine is an essential amino acid that the human body cannot synthesize on its own and must be obtained through food or supplements. L-Phenylalanine appears as colorless to white plate-like crystals or white crystalline powder, with a slight special odor and a bitter taste. It melts and decomposes at about 283°C. It is slightly soluble in water (1–5 g/100 mL at 25°C), insoluble in ethanol, methanol and diethyl ether, and soluble in dilute inorganic acids and alkaline solutions. It is stable under heat, light and in air, but unstable under alkaline conditions, and colors when heated with glucose. As an aromatic amino acid, the side chain of L-Phenylalanine contains a benzene ring, giving it hydrophobic and aromatic characteristics, playing an important role in protein folding and molecular recognition. L-Phenylalanine is a precursor to several important neurotransmitters (including dopamine, norepinephrine and epinephrine), and is one of the few essential amino acids that can directly affect mood, attention and cognitive function. L-Phenylalanine is widely used in the food industry, pharmaceutical industry, sports nutrition supplements, feed additives and biochemical research fields. In the food industry, it is the core synthetic raw material for the low-calorie sweetener aspartame; in the pharmaceutical field, it is an important component of amino acid infusions and complex amino acid formulations, used in neurological disease treatment, pain management and nutritional support; in sports nutrition, it helps enhance athletic performance and mental focus.
Appearance: Colorless to white plate-like crystals or white crystalline powder, odorless, bitter taste.
Molecular Formula and Molecular Weight: C9H11NO2, molecular weight 165.19.
用途
Pharmaceutical Industry Applications
L-Phenylalanine has important applications in the pharmaceutical field as a key component of various drug formulations and アミノ酸 infusions. The…
Sports Nutrition and Health Products Applications
L-Phenylalanine applications in sports nutrition and health products are growing rapidly, and it is an important component of sports nutrition…
Cell Culture and Biochemical Research Applications
L-Phenylalanine is an indispensable additive in cell culture and an important component of cell culture media. L-Phenylalanine に使用できる…
Feed Additives Applications
L-Phenylalanine is used as a nutritional fortifier and attractant in feed additives. Demand for aromatic amino acids (including L-Phenylalanine…
規格
| Parameter | Specification | Test Method | ||
|---|---|---|---|---|
| Color | White | Place appropriate amount of sample in a clean, dry white porcelain plate, observe under natural light | ||
| State | Crystalline powder or plate-like crystals | Same as above | ||
| Odor | Odorless, slight special odor, bitter taste | Olfactory | ||
| Physicochemical Specifications (based on USP, EP, FCC standards): | Parameter | USP Standard | EP Standard | FCC Standard |
| Test Method | ||||
| L-Phenylalanine Content (as C9H11NO2 on dried basis), % | 98.5–101.5 | 98.5–101.0 | 98.5–101.5 | Perchloric acid non-aqueous titration / HPLC |
| Specific Optical Rotation [α]20D | -33.0°~-35.0° (c=2, H2O) | — | -33.0°~-35.0° | Polarimeter |
| Loss on Drying, % | ≤0.20 | ≤0.20 | ≤0.20 | Loss on drying method |
| Residue on Ignition, % | ≤0.10 | ≤0.10 | ≤0.10 | Ignition method |
| pH Value (10% aqueous solution) | 5.4–6.0 | 5.4–6.0 | 5.4–6.0 | pH meter |
| Chlorides (Cl), % | ≤0.02 | ≤0.02 | ≤0.02 | Silver nitrate precipitation turbidimetry |
| Sulfates (SO4), % | ≤0.02 | ≤0.02 | ≤0.02 | Barium chloride precipitation turbidimetry |
| Iron (Fe), % | ≤0.001 | ≤0.001 | ≤0.001 | Thiocyanate colorimetry |
| Heavy Metals (as Pb), mg/kg | ≤10 | ≤10 | ≤10 | Thioacetamide method / ICP-MS |
| Arsenic (As), mg/kg | ≤1 | ≤1 | ≤1 | Atomic fluorescence spectrometry |
| Other Amino Acids | Not detected | Not detected | — | Thin layer chromatography / HPLC |
| Total Plate Count, CFU/g | ≤1000 | ≤1000 | ≤1000 | Microbial testing |
| Coliforms, MPN/g | ≤0.3 | ≤0.3 | — | Microbial testing |
| Salmonella | Not detected | Not detected | — | Microbial testing |
| Yeast and Mold, CFU/g | ≤100 | ≤100 | ≤100 | Microbial testing |
| 3.2 Product Grade Classification |
包装と保管
- 荷姿： 25kg net fiber drum with double PE liner.
- サンプル： 100-500g free sample available.
- 保管： Keep in tightly closed packaging, cool, dry, well-ventilated. Protect from light and moisture.
- 保管期限： 24 months from production date.
品質と認証
全ロックは社内QCラボで検査されます。出荷毎にCOA、TDS、SDSをご提供します。
規制とコンプライアンス
EU
EU法規およびFAMI-QS規格に準拠。
米国
FDAおよびAAFCOの要求事項を満たします。
中国
中国農業部（MOA）法規に基づき登録済み。
国際
コーシャ、ハラール、ISO認証取得。FTA書類対応可能。
安全性と取扱い
- 危険物分類： 通常、非危険物です。詳細はSDSを参照。
- 保管： 室温、乾燥、密閉。強酸化剤を避けてください。
- 輸送： 非危険貨物。通常の海上／航空輸送。
- SDS： ご要望に応じて sales@xadditive.cn.
よくある質問
最小ロット（MOQ）は？
試用は1kg、通常注文は25kgが最小ロットです。無料サンプルあり。
保管期限は？
適切に保管された場合、製造日から24ヶ月。
認証は？
ISO 9001、ISO 22000、HACCP、FAMI-QS、コーシャ、ハラール、COA、SDS、TDS。
見積りの依頼方法は？
メール sales@xadditive.cn with your requirement. Reply within 30 minutes.