Technical Data Sheet (TDS)
Carnosic Acid
1. Product Identification
Product Name: Carnosic Acid
Other Name: Rosemary Extract (Standardized to Carnosic Acid)
CAS No.: 3650-09-7
Molecular Formula: C20H28O4
Molecular Weight: 332.43
Source: Rosmarinus officinalis L. (Rosemary)
2. Description
Carnosic Acid is a natural antioxidant extracted from rosemary leaves. It is widely used in food, dietary supplements, cosmetics, and industrial applications due to its strong antioxidative and stabilizing properties. The material typically appears as light yellow to off-white powder depending on the purity grade.
3. Typical Specifications
| Item | Specification |
|---|
| Appearance | Light yellow to off-white powder |
| Odor & Taste | Characteristic |
| Assay (HPLC) | 20% – 90% (typical grades: 20%, 60%, 90%) |
| Loss on Drying | ≤ 5.0% |
| Ash | ≤ 2.0% |
| Heavy Metals | ≤ 10 ppm |
| Lead (Pb) | ≤ 2 ppm |
| Arsenic (As) | ≤ 1 ppm |
| Cadmium (Cd) | ≤ 1 ppm |
| Mercury (Hg) | ≤ 0.1 ppm |
| Total Plate Count | ≤ 10,000 CFU/g |
| Yeast & Mold | ≤ 300 CFU/g |
| E. coli | Negative |
| Salmonella | Negative |
4. Physical & Chemical Properties
| Property | Description |
|---|
| Solubility | Soluble in ethanol, oils, and fats; slightly soluble in water |
| Stability | Stable when stored cool and dry; sensitive to heat and strong light |
| Color | Light yellow to off-white |
| Odor | Herbal characteristic |
| Melting Point | ~193–195°C |
5. Applications
Food Industry
Natural antioxidant for oils and fats
Shelf-life extender for meat products
Stabilizer for baked goods
Preservative for pet food
Dietary Supplements
Antioxidant formulations
Liver-support blends
Anti-aging and anti-inflammatory formulas
Cosmetics & Personal Care
Antioxidant for creams and lotions
Stability enhancer for natural cosmetic products
Industrial Uses
Stabilizer for oils and bio-lubricants
Antioxidant for polymers and packaging materials
6. Recommended Dosage
Food applications: 0.02% – 0.1%
Oils & fats: 50–200 ppm
Cosmetics: 0.05% – 0.5%
(Adjust according to application requirements.)
7. Packaging
1 kg aluminum foil bag
5 kg / 10 kg / 25 kg drum
Double PE inner bag + outer fiber drum or carton
(Custom packaging available on request)
8. Storage Conditions
Store in a cool, dry, and well-ventilated area.
Protect from heat, moisture, and direct sunlight.
Keep the container tightly closed.
9. Shelf Life
24 months when properly stored.
10. Safety Information
Avoid inhalation of powder.
Use personal protective equipment during handling.
Refer to MSDS for detailed safety information.
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