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: L-Carnosine
Alias: β-Alanyl-L-histidine
CAS No.: 305-84-0
Molecular Formula: C9H14N4O3
Molecular Weight: 226.24
2. Physical & Chemical Properties
Physical Properties
- Appearance: White crystalline powder, odorless
- Taste: Slightly bitter
- Solubility: Easily soluble in water; slightly soluble in methanol; insoluble in ethanol, acetone, ether, oils
- Melting Point: Decomposes above 240 ℃ without distinct melting point
- Specific Rotation [α]D2?: +20.5° ~ +23.0° (aqueous solution)
- Hygroscopy: Slightly hygroscopic under high humidity environment
- UV feature: Characteristic absorption peak at 210 nm and 260 nm in water
Chemical Properties
- Molecular structure: Dipeptide formed by β-alanine and L-histidine, contains imidazole ring, amino group and carboxyl group
- Amphoteric property: Contains both amino and carboxyl groups, can form salts with acid and alkali
- Antioxidation: Scavenge reactive oxygen species, chelate heavy metal ions to block oxidative damage
- Anti-glycation activity: Inhibit Maillard reaction, reduce advanced glycation end products formation
- Hydrolysis characteristic: Long-term heating or strong acid/alkali condition breaks peptide bond to produce β-alanine and L-histidine
- Photostability: Slightly sensitive to strong ultraviolet light, long-term light exposure will produce trace impurities
- Compatibility: Compatible with water-soluble vitamins, amino acids; incompatible with strong oxidants, high concentration mineral acid
3. Main Application Fields
1. Functional Health Food Raw Material (Core Application)
- Anti-aging, anti-glycation nutritional supplement raw material
- Sports nutrition additive: relieve muscle fatigue, delay exercise-induced lactic acid accumulation
- Compound antioxidant formula matching vitamin C, vitamin E, glutathione
2. Cosmetic Active Ingredient
- Anti-aging raw material for facial cream, essence, eye care products
- Anti-glycation, brighten dull skin, repair oxidative damage caused by UV radiation
3. Pharmaceutical Research Raw Material
- In vitro cell experiment reagent for anti-oxidation, neuroprotection research
- Intermediate raw material for oral anti-aging health preparations
4. Biochemical Standard Reference
HPLC reference standard for dipeptide detection in animal muscle tissue
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 305-84-0 |
| Molecular Formula | C9H14N4O3 |
| Molecular Weight | 226.24 |
| Appearance | White crystalline powder |
| HPLC Purity | Food Grade ≥99.0%; Reference Standard ≥99.5% |
| Moisture Content (KF) | ≤0.30% |
| Residue on Ignition | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Bulk Package | Nitrogen-sealed aluminum foil vacuum bag, amber glass bottle |
| Storage Condition | Hermetic nitrogen-filled, light-proof, cool dry warehouse ≤25℃; avoid damp and strong light |
| Transportation Rule | Bioactive dipeptide solid, sealed moisture-proof light-proof packaging |
| Shelf Life | 24 months under intact nitrogen vacuum packaging |
...
Product
