Menatetrenone

CAS Number
863-61-6
EC Number
234-264-5
Chemical Formula
C31H40O2
Molecular Weight
444.6 g/mol
Abbreviation
MK-4

Description

Menatetrenone (CAS 863-61-6), commercially recognized as MK-4 and Menaquinone-4, is the synthetic short-chain form of Vitamin K2 used across pharmaceutical, nutraceutical, and functional food applications. It supports calcium metabolism regulation and bone health positioning in finished products, making it a target active ingredient for formulators developing condition-specific supplements.

In pharmaceutical manufacturing, menatetrenone is the active ingredient in prescription bone-health therapeutics, particularly in markets such as Japan where it holds approved drug status. Nutraceutical and dietary supplement producers incorporate MK-4 into softgels, tablets, and combination bone-health formulas alongside Vitamin D3 and calcium for maximum efficacy.

Functional food and fortified beverage manufacturers use it to support on-pack K2 content claims, particularly in dairy and plant-based formats. Cosmetic formulators have explored its antioxidant activity. Menatetrenone is supplied as a yellow to orange crystalline powder or in oil-based dispersion formats suited to encapsulation and liquid filling. Pharmaceutical-grade material is available to USP specifications.

Food- and supplement-grade material is also offered, with standardized concentrations common in premix and microencapsulated forms for improved stability in finished formulations.

Other Names (Synonyms)

Vitamin MK 4|MK4|Menaquinone K4|menaquinone 4|K2 MK4|2-Methyl-3-trans-tetraprenyl-1,4-naphthoquinone|2-Methyl-3-geranylgeranyl-1,4-naphthoquinone|Kaytwo|MK-4

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point 35 °C
Boiling Point 494.59°C (rough estimate)
Density 1.0461 (rough estimate)
Flash Point 2°C
Appearance Yellow Crystals
Color Light Yellow to Yellow
Form neat
Refractive Index 1.5045 (estimate)

Trade & Regulatory

HS Code 2914699000
UN Number 1648
ADR Class 3
Packing Group II
Storage Class 11 - Combustible Solids
WGK (Germany) 3

Documentation

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