Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: 2-Amino-5-guanidinovaleric acid monohydrochloride
Alias: L-Arginine Hydrochloride, L-Arginine monohydrochloride
CAS No.: 1119-34-2
Molecular Formula: C6H15ClN4O2
Molecular Weight: 210.66
2. Physical & Chemical Properties
Physical Properties
- Appearance: White crystalline powder, odorless, slightly bitter taste
- Solubility: Highly soluble in water; very slightly soluble in ethanol; insoluble in ether, acetone, benzene
- Density (20℃): 1.42 g/cm3
- Melting & Decomposition Point: 226–230 ℃, decomposes at 235 ℃
- pH (10% aqueous solution): 4.0–6.0, weakly acidic
- Specific Optical Rotation [α]?2?: +20° ~ +22° (c=8, 6mol/L HCl)
- Hygroscopy: Slightly hygroscopic under high humidity
- Crystal form: Orthorhombic uniform crystal with good fluidity after drying
Chemical Properties
- Molecular structure: Essential amino acid hydrochloride, contains carboxyl, α-amino group and terminal guanidine group, chiral L-type configuration
- Amphoteric ion characteristic: Multiple nitrogen groups can combine with hydrogen ions, stable hydrochloride salt form
- Guanidine group reactivity: Strong alkaline group, can undergo condensation, chelation reaction with metal ions
- Thermal stability: Stable below 200℃; decomposes at high temperature to release ammonia and carbon dioxide
- Photostability: Stable under normal light, no discoloration after long-term sealed storage
- Maillard reaction: Reacts with reducing sugars under heating to generate characteristic flavor substances
- Acid-base compatibility: Stable in neutral and weak acid; strong alkali will free L-arginine; incompatible with strong oxidants
- Physiological activity: Raw material of urea cycle, promotes ammonia conversion to urea for excretion
3. Main Application Fields
1. Pharmaceutical Raw Material (Core Application)
- Amino acid injection, compound nutrient infusion raw material, for postoperative nutritional support
- Liver disease medicine: Reduce blood ammonia, auxiliary treatment of hepatic coma and hyperammonemia
- Male reproductive health drug raw material: Improve sperm motility and quality
- Oral tablets, capsules for arginine deficiency supplementation
2. Food & Nutritional Fortifier
- Functional food, sports nutrition supplement raw material, boost exercise endurance and body recovery
- Infant formula, dairy, meal replacement powder amino acid fortifier
- Food flavor modifier, participate in Maillard reaction to enhance food aroma
3. Feed Additive
Feed-grade L-arginine hydrochloride for livestock, poultry and aquaculture; promote animal growth, reproductive performance and immunity, reduce young animal deformity rate
4. Biochemical Laboratory Reagent
- HPLC reference standard for amino acid detection
- Cell culture medium additive, substrate for nitric oxide synthase research
- Biochemical buffer component for enzyme reaction system
5. Daily Chemical & Oral Care Raw Material
Additive for toothpaste, mouthwash; improve fluoride absorption, inhibit oral bacteria and reduce dental caries risk
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 1119-34-2 |
| Molecular Formula | C6H15ClN4O2 |
| Molecular Weight | 210.66 |
| Appearance | White crystalline powder |
| HPLC Purity | Pharma Grade ≥99.0%; Food Grade 98.5%–101.5% |
| Specific Optical Rotation [α]?2? | +20.0° ~ +22.0° |
| Moisture Content (KF) | ≤0.20% |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Chloride Content | 16.5–17.5% |
| Bulk Package | 25kg PE lined fiber drum / aluminum foil vacuum bag |
| Storage Condition | Hermetic cool dry warehouse ≤25℃; isolate humid air, oxidants and alkaline raw materials |
| Transportation Rule | Amino acid solid, moisture-proof sealed packaging |
| Shelf Life | 24 months under intact sealed packaging |
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