Technical Data Sheet (TDS) – Emodin
Product Name: Emodin
Synonyms: 1,3,8-Trihydroxy-6-methylanthraquinone
CAS No.: 518-82-1
Molecular Formula: C15H10O5
Molecular Weight: 270.24 g/mol
Appearance: Orange-red crystalline powder
Odor & Taste: Characteristic, slightly bitter
1. Technical Specifications
| Parameter | Food Grade Specification | Industrial Grade Specification | Test Result (Example) |
|---|
| Assay (HPLC) | ≥ 98% | ≥ 95% | 98.7% |
| Loss on Drying | ≤ 1.0% | ≤ 2.0% | 0.45% |
| Ash | ≤ 1.0% | ≤ 2.0% | 0.38% |
| Heavy Metals | ≤ 10 ppm | ≤ 20 ppm | 6 ppm |
| Lead (Pb) | ≤ 2 ppm | ≤ 5 ppm | 1 ppm |
| Arsenic (As) | ≤ 1 ppm | ≤ 3 ppm | <1 ppm |
| Cadmium (Cd) | ≤ 1 ppm | ≤ 2 ppm | <1 ppm |
| Mercury (Hg) | ≤ 0.1 ppm | ≤ 0.5 ppm | <0.1 ppm |
| Total Plate Count | ≤ 1000 CFU/g | Not required | 120 CFU/g |
| Yeast & Mold | ≤ 100 CFU/g | Not required | 15 CFU/g |
| E.coli | Negative | Not required | Negative |
| Salmonella | Negative | Not required | Negative |
2. Physical and Chemical Properties
Melting Point: 255–257°C
Solubility: Slightly soluble in water; soluble in ethanol, methanol, DMSO, chloroform
pH (1% solution): 5.0–7.0
Stability: Stable under normal temperature and dry conditions; sensitive to light and moisture
3. Applications
Food Grade:
Functional food ingredient, natural supplement, or colorant
Supports gastrointestinal health and liver function (within regulatory limits)
Industrial Grade:
Raw material for dye and pigment production
Intermediate for pharmaceuticals, research chemicals, and anthraquinone derivatives
4. Storage & Handling
Store in a cool, dry, and well-ventilated area
Keep container tightly closed
Protect from light and moisture
Shelf life: 24 months under proper storage conditions
5. Safety & Regulatory
Non-toxic at recommended dosages for food applications
Follow local regulations for industrial handling
Avoid inhalation and prolonged skin contact
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