• Lansdowne Chemicals
    • Lansdowne Chemicals
      With a focus on providing the highest level of service
      Lansdowne Chemicals has established itself at the forefront of the global chemical industry.
      Headquarters are in Carterton, Oxfordshire encompassing all of Lansdowne's Business Units. Our Regulatory Team and Quality Control Departments are based out of Carterton. Lansdowne Aromatic's state of the art warehouse facilities are located in Cricklade, covering 12,000 square ft. We are able to offer just-in-time deliveries for our full range of products, in a variety of pack sizes. Bonded facilities are available for goods going outside of the EU.
      Email:Contact Us:
      US Email:Dean Matienzo - Sales Manager
      Voice:+44 1993 843081
      Fax:+44 1993 841261
      US Voice:+1 973 886 3778
      US Fax:+1 973 346 1106
      2-Methyl-1,4 Napthoquinone
  • Penta International
    • Penta International Corporation
      Chemistry innovation
      At Penta, our products and services help businesses do business better.
      For over 30 years, Penta Manufacturing Company has played a growing role in worldwide chemistry innovations and applications. As an industry leader, Penta continues to pioneer chemistry-based solutions for practically every area of commerce. Our products and expertise have helped fuel technical advances in dozens of commercial applications including flavoring, coloring, fragrances and chemical processes.
      US Email:Technical Services
      US Email:Sales
      US Voice:(973) 740-2300
      US Fax:(973) 740-1839
      22-90275 VITAMIN K3, Kosher
Notes :
a synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin k2, menaquinone, after alkylation in vivo.
  • References
      • References
         2- methylnaphthalene-1,4-dione
        NIST Chemistry WebBook :Search Inchi
        Canada Domestic Sub. List :58-27-5
        Pubchem (cid):4055
        Pubchem (sid):134971654
  • Cosmetics
  • Other
      • Other Information
        (IUPAC) :Atomic Weights of the Elements 2009
        (IUPAC) :Atomic Weights of the Elements 2009 (pdf)
        Videos :The Periodic Table of Videos
        tgsc :Atomic Weights use for this web site
        (IUPAC) :Periodic Table of the Elements
        Dietary Supplements Labels Database : Search
        HMDB (Comprehensive Metabolomic Database) :Search
        Export Tariff Code :2914.69.5000
        VCF-Online: VCF Volatile Compounds in Food
        ChemSpider : View
        Wikipedia : View
        RSC Learn Chemistry : View
        Formulations/Preparations :
        •menadione, nf (vit k3)...avail in oral admin in tablets containing 2, 5, or 10 mg, & as sterile soln of menadione in oil (usually 2, 10, or 25 mgml) designed for im admin. •menadione sodium bisulfite, nf (hykinone)...white crystalline, hygroscopic powder. ...sol in water...marketed in 5-mg tablets & in ampuls5-10 mgml. menadiol sodium diphosphate injection, nf (kappadione, synkavite)...ampuls...5, 10, or 37.5 mgml. menadiol sodium diphosphate tablets, nf...5 mg... •menadiol sodium diphosphate injection, nf (kappadione, synkavite), is marketed in ampuls containing 5, 10, or 37.5 mgml. menadiol sodium diphosphate tablets, nf, contain 5 mg of salt for oral use. •commercially significant forms are menadione sodium bisulfite and menadione dimethyl pyrimidinol. •menadione is available as a 2, 5, and 10 mg tablet and as a 2 and 10 mgml injection (in oil). •trade names for menadione include: aquakay, aquinone, austrovit-k depot, hemodal, k-thrombyl, k-vitan, kaergona, kanone, kaom belgarum, kappaxan, kappaxin, karanum, karcon, kareon, kativ-g, kavitamin, kayklot, kaykot, kayquinone, kipca, kipca-oil soluble, klottone, koaxin, kolklot, menadion, menaphthon, menaphthone, menaquinone 0, mitenon, mitenone, mnq, neo-zimema-k, panosine, prokayvit, synkay, thyloquinone, vikaman, vita-noxi k, and vitavel-k.
  • Blenders
      • Potential Blenders and core components note
        None Found
  • Uses
      • Potential Uses
        None Found
  • Occurrence
      • Natural Occurrence in : note
         found in nature
  • Search
      • Search for Name, Cas,
        Enics, Fema, Flavis
        Search for
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2-methylnaphthalene-1,4-dione (Click)
CAS Number : 58-27-5
ECHA EC Number :200-372-6
Beilstein Number :1908453
MDL :MFCD00001681
XlogP3 :2.20 (est)
Molecular Weight :172.18316000
Formula :C11 H8 O2
BioActivity Summary :listing
NMR Predictor :Predict
Category :masking agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information :
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Picture of molecule
Synonyms :
 menaquinone O
1,4-naphthalenedione, 2-methyl-
1,4-naphthoquinone, 2-methyl-
 vitamin K3
Soluble in :
 water, 160 mg/L @ 30 °C (exp)
 water, 793.8 mg/L @ 25 °C (est)
Stability :
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