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phthalaldehyde

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Origin: China

Cas No: 643-79-8

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.:
    643-79-8
    Other Names:
    o-Phthalic aldehyde
    MF:
    C8H6O2
    EINECS No.:
    643-79-8
    Place of Origin:
    Shandong, China
    Type:
    Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates, 643-79-8
    Purity:
    99%
    Brand Name:
    Finerchem
    Model Number:
    643-79-8
    Application:
    Disinfectant/pharmaceutical/dye/OLED intermediate
    Appearance:
    yellowish crystal
    Product name:
    o-Phthalaldehyde
    CAS:
    643-79-8
    Assay:
    ≥99%

    Packaging&Delivery

    Packaging Details
    Aluminium foil bag for within 10kg, 25kg/Fiber drum, 25kg/kraft bag.For commercial quantity, it packed in 25kg/drum with nitrogen filled protection. For sample, it packed by plastic bag with vacuumized
    Port
    SHANGHAI, QINGDAO , BEIJING, SHENZHEN , DALIAN
    Lead Time:
    Quantity(Kilograms)1 - 500>500
    Est. Time(days)4To be negotiated

    Products Description

    Product Name
    o-Phthalaldehyde
    CAS No.
    643-79-8
    Appearance
    Yellowish crystal
    Assay
    ≥99%
    Capacity
    100mt/year
    Min.packing
    100gram
    Application
    Disinfectant/pharmaceutical/dye/OLED intermediate
    Standard
    Enterprie export 
    Brand
    FinerChem 


    More information

    Synonyms: OPA 
                        Ortho phthalaldehyde 
                        o-Phthalic aldehyde 
                        1,2-Phthalic dicarboxaldehyde 
                        1,2-Benzenedicarboxaldehyde
                        Benzene-1,2-dicarboxaldehyde 
    Molecular Formula: C8H6O2 
    Molecular Weight: 134.13 
    CAS Registry Number: 643-79-8 
    EINECS: 211-402-2
    Melting point: 54-57 ºC 
    Boiling point: 83-84 ºC 
    Flash point: 132 ºC 
    Water solubility: soluble

  • Property

    CAS No.: 643-79-8 Formula: C8H6O2 Molecular Weight: 134.13200

    Description

    o-Phthalaldehyde or ortho-phthalaldehyde (OPA) is the chemical compound with the formula C6H4(CHO)2. Often abbreviated OPA, the molecule is a dialdehyde, consisting of two formyl (CHO) groups attached to adjacent carbon centres on a benzene ring. This pale yellow solid is a building block in the synthesis of heterocyclic compounds and a reagent in the analysis of amino acids. OPA dissolves in water solution at pH < 11.5. Its solutions degrade upon UV illumination and exposure to air.

    Basic Info

    Chemical Name phthalaldehyde
    Synonyms

    1,2-Benzenedicarboxaldehyde;
    o-Phthalaldehyde;

    CAS No. 643-79-8
    Molecular Formula C8H6O2
    Molecular Weight 134.13200
    PSA 34.14000
    LogP 1.31160

    Properties

    Appearance & Physical State Light yellow crystalline powder
    Density 1.13
    Boiling Point 83-84ºC (0.7501 mmHg)
    Melting Point 54-57ºC
    Flash Point 132ºC
    Refractive Index 1.622
    Water Solubility soluble
    Stability Stable. Air sensitive. Incompatible with strong oxidizing agents, strong bases.
    Storage Condition 2-8ºC

    Safety Info

    RTECS TH6950000
    Safety Statements S26-S36/37/39-S45
    HS Code 2912299000
    WGK Germany 3
    RIDADR UN2923 8/PG 2
    Risk Statements R25; R34; R43
    Hazard Codes T
    Symbol GHS05, GHS06, GHS09
    Caution Statement P273; P280; P301 + P310; P305 + P351 + P338; P310
    Hazard Declaration H301; H314; H317; H400
    Signal Word Danger

    Synthesis Route

    2-Methoxybenzyl alcohol→1,3-Dihydroisobenzofuran+2-benzofuran-1(3H)-one
    isoquinoline→phthalimide+isoquinolin-1(2H)-one
    sodium 2-(2-(1,3-dioxolan-2-yl)benzylidene)-1-tosylhydrazin-1-ide→Spiro[bicyclo[4.2.0]octa-1,3,5-triene-7,2'-[1,3]dioxolane] (en)+1,4-Epoxy-1,3,4,5-tetrahydro-2-benzoxepin

    Precursor

    1,2-bis-diacetoxymethyl-benzene
    1,3-dimethoxy-1,3-dihydro-2-benzofuran
    1,3-Dihydroisobenzofuran
    1,2-Benzenedimethanol

    Downstream Product

    Phthalimidine, 2-phenyl-
    1,3-Dihydroisobenzofuran
    2-(3-oxo-1H-isoindol-2-yl)benzoic acid
    (Hydroxy-3-dihydro-1,3-isobenzofuranyl-1)-3-phenyl-2-isoindoline-one-1

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