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Vitamin D3

Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin synthesized naturally in the skin of humans and animals upon exposure to ultraviolet B (UVB) radiation. It acts as a prohormone that is essential for maintaining optimal calcium and phosphorus levels, supporting structural bone health, and regulating immune system signaling.

Classification :

Vitamins

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E-mail : michael@meweingredients.com

PRODUCT DETAILS

Specification Item	Standard / Value
Product Name	Vitamin D3 (Cholecalciferol)
CAS No.	67-97-0
Molecular Formula	C₂₇H₄₄O
Grade Standard	Food Grade / Pharma Grade / Feed Grade (USP/EP/BP/FCC)
Appearance	• Powder: White or off-white free-flowing powder • Oil: Clear yellow or pale yellow oily liquid
Assay (Potency / Activity)	• Powder Form: 100,000 IU/g / 500,000 IU/g (CWD/TAB) • Oil Form: 1,000,000 IU/g / 4,000,000 IU/g • Pure Crystal: ≥ 97.0% – 103.0% (approx. 40,000,000 IU/g)
Melting Point	82°C — 87°C (for Pure Crystal)
Specific Optical Rotation	+105.0° to +112.0°
Loss on Drying	≤ 5.0% (for powder formulations) / ≤ 0.5% (for pure crystal)
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 2 ppm
Solubility	• CWD Powder: Cold water dispersible • Oil/Crystal: Soluble in fats and organic solvents, insoluble in water
Shelf Life	24 Months (2 Years)
Standard Packing	1 kg/Aluminium foil bag, 25 kg/Fiber drum (Powder) 25 kg/Blue plastic drum (Oil)

PACKAGING AND SHIPPING

Made of pure aluminum composite material, with high barrier properties, effectively isolating it from air, moisture, and light.
Completely moisture-proof, oxidation-resistant, and anti-caking, ensuring long-term preservation of powder purity.
Individually sealed and packaged; sizes can be customized in 1kg/5kg/10kg/25kg bags.
Neutral, unlabeled packaging and printing of customer logos and product information are also supported.

Storage

The independent and professional raw material storage workshop is kept at a constant temperature, dry and protected from light throughout, with ventilation, moisture control, and humidity prevention to prevent powder from absorbing moisture, clumping, deterioration, and oxidation. The workshop features zoned shelving for vertical storage, with cartons and drums stacked in separate zones to keep goods off the ground and away from moisture, acids, alkalis, odors, and sources of pollution.

factory workshop

FACTORY WORKSHOP

The company has a perfect R & D platform, testing platform, is committed to improving the level of human nutrition, improve the nutritional quality of Chinese residents, and promote the development of China's health cause.

Equipment

APPLICATION FIELD

Mewe Ingredients focuses on nutritional supplements, natural product concentrates, API and other high-end products for human healthy life, and is committed to the development and research of natural products with great market potential in pharmacological application and health care application, and to achieve industrialization and marketization.

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Vitamin A

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Vitamin A Acetate

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