Product Name: β-Hydroxy-β-Methylbutyric Acid, Calcium Salt (HMB-Ca)
CAS No.: 135236-72-5
Molecular Formula: (C₅H₉O₃)₂Ca
Molecular Weight: 234.25 g/mol
1. Product Description
HMB-Ca is the calcium salt form of β-Hydroxy-β-Methylbutyric Acid (HMB), a metabolite of the essential amino acid leucine. Compared with the free acid, HMB-Ca offers better stability, solubility, and handling properties.
Food Grade: Used as a dietary supplement ingredient, widely applied in sports nutrition, functional foods, and health products.
Industrial Grade: Applied in biochemical research, feed additives, and non-food formulations where food-grade purity is not required.
2. Typical Properties
| Item | Food Grade Specification | Industrial Grade Specification |
|---|
| Appearance | White crystalline powder | White to off-white powder |
| Purity (HMB-Ca) | ≥ 98.0 % | ≥ 95.0 % |
| Calcium Content | 12 – 16 % | 10 – 16 % |
| Loss on Drying | ≤ 5.0 % | ≤ 7.0 % |
| Residue on Ignition | ≤ 0.5 % | ≤ 1.0 % |
| Heavy Metals (Pb) | ≤ 10 ppm | ≤ 20 ppm |
| Arsenic (As) | ≤ 1 ppm | ≤ 2 ppm |
| Microbiological Tests | Total Plate Count ≤ 1000 cfu/g
Yeast & Mold ≤ 100 cfu/g
E. coli & Salmonella: Negative | Not routinely tested |
| Solubility | Freely soluble in water | Soluble in water |
| Stability | Stable under normal storage conditions | Stable under normal storage conditions |
3. Applications
Food Grade:
Sports nutrition (muscle recovery, strength support)
Functional beverages & dietary supplements
Health products (anti-catabolic support)
Industrial Grade:
Feed additives for livestock
Biochemical research
Raw material for specialty formulations
4. Packaging
25 kg drum / 25 kg bag
Inner PE liner with outer fiber drum or kraft bag
5. Storage & Shelf Life
Store in a cool, dry, and ventilated place.
Keep away from direct sunlight and moisture.
Shelf life: 24 months (unopened, under recommended storage conditions).
6. Safety & Handling
Non-hazardous under normal conditions.
Avoid dust formation and inhalation.
Use appropriate PPE during handling in industrial settings.
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