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Dihydropyran-3-one

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Origin: China

Cas No: 23462-75-1

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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

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  • Products Specification
  • Product Description

  • Quick Details

    CAS No.:
    23462-75-1
    Other Names:
    Dihydro-pyran-3-one
    MF:
    C20H20O11
    EINECS No.:
    1171919-00-8
    Place of Origin:
    Shaanxi, China
    Type:
    Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates
    Purity:
    99%min
    Brand Name:
    DIDAC
    Model Number:
    DAC170112
    Application:
    Pharm/Chem Industries
    Appearance:
    solid Form
    Structure Identification:
    H-NMR&LC-MS
    Identification:
    Infrared Absorption
    Test method:
    HPLC-ESI-MS
    Content:
    99.0% to 101.0%
    Water:
    0.5% Max.
    Sulfated ash:
    0.1% Max.
    Heavy metals:
    10ppm Max
    Total Impurity:
    0.2% Max.
    Assay:
    HPLC
    Disregard limit:
    0.0005%

    Packaging&Delivery

    Packaging Details
    25kgs/Drum; 200kgs/Drum
    Port
    Any main port of China

    Products Description

    Item
    Standard
    Test Results





    Identification
    A.H-NMR:Comply with the structure
    Complies
    B.LC-MS:Comply with the structure
    Complies
    C.The IR spectrum of sample should be identical with that of reference standard;
    Complies
    D.HPLC-ESI-MS
    The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the
    Standard preparation, as obtained in the Assay.
    Complies
    Crystallinity
    meets the requirements.
    Complies
    Loss on drying
    ≤2.0%
    0.19%
    Heavy metals
    ≤10 ppm
    <10ppm
    Water
    ≤1.0%
    0.1%
    Sulphated ash
    ≤0.5%, determined on 1.0 g.
    0.009%

    Related substances
    Unspecified impurities: for each impurity ≤0.10%
    <0.10%
    Total Impurity ≤0.5%
    0.18%
    Purity
    ≥99.0%
    99.7%
    Assay
    99.0%~101.0% (anhydrous substance).
    99.8%
    Storage
    Preserve in well-closed, light-resistant and airtight containers.
    Complies

  • Property

    CAS No.: 23462-75-1 Formula: C5H8O2 Molecular Weight: 100.11600

    Basic Info

    Chemical Name Dihydropyran-3-one
    Synonyms

    oxan-3-one;

    CAS No. 23462-75-1
    Molecular Formula C5H8O2
    Molecular Weight 100.11600
    PSA 26.30000
    LogP 0.36590

    Properties

    Density 1.065 g/cm3
    Boiling Point 176ºC at 760 mmHg
    Flash Point 70.4ºC
    Refractive Index 1.44
    Vapor Pressure 1.12mmHg at 25°C

    Safety Info

    HS Code 2932999099

    Synthesis Route

    [α-tetrahydropyrannyloxy]-2 tetrahydropyrone-3 (S*,S*)→5-valerolactone+Dihydropyran-3-one
    oxan-3-ol→Dihydropyran-3-one
    2H-pyran-5-one→Dihydropyran-3-one

    GC Analysis

    Column type Active phase Temperature (°C) Retention Index (I) Temperature Control Method
    Capillary HP-Wax - 1439. temperature ramp

    Precursor

    1-Propyne, 3-(2,2-diethoxyethoxy)-
    Dihydropyran
    2H-pyran-5-one
    3,3-dimethoxytetrahydro-2H-pyran

    Downstream Product

    2-amino-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxamide
    4-(5,6-Dihydro-2H-pyran-3-yl)morpholin
    Chromone-3-Carbonitrile
    Tetrahydro-2H-pyran-3-carboxylic acid

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