50281-47-5

Basic information

• Product Name: 4-Hydroxy-2-methyl-3-<(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enyl>naphth-1-yl Acetate
• Synonyms: 4-Hydroxy-2-methyl-3-<(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enyl>naphth-1-yl Acetate
• CAS NO: 50281-47-5
• Molecular Weight: 494.758
• Mol File: 50281-47-5.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 4-Hydroxy-2-methyl-3-<(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enyl>naphth-1-yl Acetate(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Hydroxy-2-methyl-3-<(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enyl>naphth-1-yl Acetate(50281-47-5)
• EPA Substance Registry System: 4-Hydroxy-2-methyl-3-<(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-enyl>naphth-1-yl Acetate(50281-47-5)

Safety Data

• Hazardous Substances Data: 50281-47-5(Hazardous Substances Data)

Usage

Uses

Phyllohydroquinone 1-Acetate is an impurity of Vitamin K1 (V676080), a vitamin that occurs widely in green plants, algae, photosynthetic bacteria.

Upstream product

• 2211-27-0 4-acetoxy-3-methyl-1-naphthol 
• 150-86-7 phytol 
• 58-27-5 menadione 
• 573-20-6 menadiol di(acetate) 

Downstream Products

• 84-80-0 phytomenadione 

Relevant articles and documents

METHOD OF MAKING VITAMIN K1

This invention discloses a method of making vitamin K1. The mentioned method of making vitamin K1 comprises performing a first one-pot synthesis with base catalyst, performing a first hydrolysis, performing a substitution, and performing a second one-pot synthesis without metal oxidant. The starting material of this invention is stable 2-methyl-1,4-naphthoquinone. Preferably, this invention provides a method of making vitamin K1 efficiently on simplifying the operation and decreasing the side-product. More preferably, without metal residue, the vitamin K1 of this invention is without metal residue and more safety for clinical application.

Method for the determination of vitamin K homologues in human plasma using high-performance liquid chromatography-tandem mass spectrometry

We report here the development of a precise and sensitive method for the determination of vitamin K homologues including phylloquinone (PK), menaquinone-4 (MK-4), and menaquinone-7 (MK-7) in human plasma using HPLC-tandem mass-mass spectrometry with atmospheric pressure chemical ionization (LC-APCI-MS/MS). The method involves the use of stable isotope 18O-labeled internal standard compounds, which were synthesized in our laboratory, and the selection of a precursor and product ion with a MS/MS multiple reaction monitoring method. The average intraassay and interassay variation values for PK, MK-4, and MK-7 were 10%. Average spiked recoveries from authentic compounds added to normal human plasma samples for PK, MK-4, and MK-7 were 98-102%. Mean plasma concentrations of PK, MK-4, and MK-7 from healthy subjects (n = 20) were 1.22 ± 0.57, 0.39 ± 0.46, and 6.37 ± 7.45 ng/mL, respectively. We conclude that this novel LC-APCI-MS/MS method should be useful for the evaluation of vitamin K status in postmenopausal women and elderly subjects and provides useful information for the treatment and prevention of osteoporosis with vitamin K.