Physicochemical Characteristics & Stability Analysis of Vitamin K2 MK-4 1.3% Liquid Oil (CAS 863-61-6)

Technical Research Brief

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As an essential fat-soluble vitamin raw material for nutritional fortification, Vitamin K2 MK-4 (Menaquinone-4, CAS 863-61-6) is widely adopted in global dietary supplement, functional food and nutrition fortification industries. Distinct from MK-7, MK-4 possesses a unique molecular chain structure, bringing different physicochemical behaviors and system compatibility. The industrial mainstream 1.3% liquid oil specification is specially optimized for large-scale production, effectively solving common technical obstacles existing in high-purity crystalline MK-4 powder applications. This article systematically analyzes the physical properties, chemical stability, oxidation resistance rules and standardized quality control specifications of 1.3% Vitamin K2 MK-4 liquid oil, providing reliable industrial reference for purchasers and technical teams.

Disclaimer: This article only provides physicochemical and industrial technical analysis for raw material reference, not medical or therapeutic guidance.

Ⅰ. Basic Physical & Molecular Properties of MK-4 Liquid Oil

Vitamin K2 MK-4 is a typical fat-soluble nutrient, insoluble in water and stably soluble only in food-grade oil carrier systems. The standardized 1.3% content is formed by high-purity MK-4 active ingredient diluted and stabilized through refined vegetable oil carriers. Compared with crystalline MK-4 powder, the pre-dissolved liquid oil structure features uniform molecular distribution, no crystal agglomeration and better fluidity. This standardized industrial specification avoids repeated high-temperature dissolution during production, preventing active ingredient loss caused by thermal decomposition, and maintains stable physical properties under conventional processing conditions.

Ⅱ. Oxidation Sensitivity & Stabilization Mechanism

MK-4 molecules contain unsaturated bond structures, making them naturally sensitive to strong light, high temperature and excessive oxygen exposure. Long-term open storage or improper transportation will trigger slow oxidation, resulting in gradual decline of active content and unstable batch quality. Many manufacturers face raw material attenuation and poor consistency mainly due to unoptimized carrier systems and iNADequate sealing protection. Our 1.3% MK-4 liquid oil adopts optimized antioxidant oil carrier formula and fully enclosed filling technology, which effectively isolates air contact, slows down natural oxidation progress, and significantly improves overall shelf stability compared with traditional powder raw materials.

Ⅲ. Industrial Batch Quality Control Standards

Stable industrial application relies on strict batch index control. Core testing items of qualified Vitamin K2 MK-4 1.3% liquid oil include effective active content, peroxide value, moisture and volatile matter, heavy metal indicators and microbial safety. Unqualified carrier oil and excessive peroxide value are the main causes of raw material deterioration in the industry. With years of raw material production experience, we implement full-process closed production, real-time index monitoring and strict batch screening to ensure consistent activity, stable color and uniform fluidity for every batch. Complete COA and MSDS documents are provided to support global factory filing and customs clearance.

Ⅳ. Scientific Storage & Transportation Specifications

For bulk industrial procurement, standardized storage and transportation are critical to maintaining long-term raw material stability. It is recommended to store MK-4 liquid oil in sealed, low-temperature, dry and dark environments, avoiding long-term ultraviolet irradiation and high-temperature stacking. During cross-region transportation, shaded and sealed packaging is adopted to prevent activity fluctuation caused by external environment changes. Standardized management effectively reduces raw material loss and ensures stable performance throughout the production cycle.

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