I. Basic Information
Chemical Name: Vitamin D3 (Cholecalciferol)
Other Names: Cholecalciferol, 7-dehydrocholesterol derivative
分子式C₂₇H₄₄O
分子量：384.64
CAS Number: 67-97-0
ブランド上海BBL
II. Industrial-Grade Product Characteristics
Appearance: Pale yellow to light brown crystalline powder; color variation due to trace impurities is permitted.
Solubility: Soluble in industrial solvents such as ether, cyclohexane, and vegetable oils; insoluble in water.
Purity: ≥99.0% (HPLC test), meeting the basic purity requirements for industrial-grade raw materials.
Stability: Stable in dry, dark-protected conditions. High-temperature tolerance (≤60°C) is superior to pharmaceutical-grade materials, making it suitable for industrial processing environments.
Melting Point: 82-89°C (industrial-grade standard range).

III. Core Application Areas
Chemical Synthesis Intermediates
As a key raw material for the synthesis of steroid compounds, it is used in the production of pharmaceutical intermediates such as glucocorticoids and sex hormones, as well as a precursor for new UV absorbers. The cyclopentane polyhydrophenanthrene skeleton in its molecular structure can be derived into a variety of high-value-added chemicals through reactions such as hydroxylation and oxidation.
Plastics and Polymer Material Additives
Light Stabilizer: When added to polyolefin plastics (such as PE and PP), it inhibits UV-induced molecular chain breakage, extending the service life of outdoor plastic products (pipes and films).
Antioxidant Enhancer: When combined with hindered phenolic antioxidants, it improves the aging resistance of rubber products and is suitable for industrial products such as tires and seals.
Coatings and Ink Industries
As a functional additive, it improves the film-forming properties of coatings, enhances the coating’s adhesion to substrates such as metal and wood, and imparts a certain degree of weather resistance. It is suitable for industrial anti-corrosion coatings and outdoor architectural coatings.

Cosmetic Raw Material Intermediates
After refinement, these can be used to synthesize cosmetic raw materials with sun protection and skin metabolism-boosting properties. For example, vitamin D3 derivatives can be added to sunscreens and repair lotions.