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Picture of 9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one

9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one

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Origin: China

Cas No: 69372-19-6

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 69372-19-6 Formula: C10H8N6O Molecular Weight: 228.21000

    Basic Info

    Chemical Name 9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one
    Synonyms

    3-(1H-tetrazol-5-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine;
    Pemirolast (INN);
    UNII-2C09NV773M;
    Pemirox (TN);
    Pemirolastum [INN-Latin];
    Pemiroplast Potassium;
    Pemirolastum;
    Pemirolast;
    9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one;
    9-TBX;

    CAS No. 69372-19-6
    Molecular Formula C10H8N6O
    Molecular Weight 228.21000
    PSA 88.83000
    LogP 0.18300

    Properties

    Density 1.64 g/cm3
    Boiling Point 454.8ºC at 760 mmHg
    Melting Point 310-311ºC (decomposes)
    Flash Point 228.9ºC

    Safety Info

    Hazard Class 8
    Safety Statements S16; S26; S36/37/39; S37/39
    Packing Group II
    WGK Germany 3
    RIDADR UN 3265 8/PG 2
    Risk Statements R34
    Hazard Codes C

    Synthesis Route

    3-cyano-4-imino-9-methyl-4H-pyrido[1,2-a]pyrimidine9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one
    4-imino-9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido(1,2-a)pyrimidine9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one
    2-Amino-3-picoline+Triethyl orthoformate9-methyl-3-(2H-tetrazol-5-yl)pyrido[1,2-a]pyrimidin-4-one

    Precursor

    4-imino-9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido(1,2-a)pyrimidine
    malononitrile
    3-cyano-4-imino-9-methyl-4H-pyrido[1,2-a]pyrimidine
    2-Amino-3-picoline

    Downstream Product

    Pemirolast Potassium Hydrate

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