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Home > Aromatic Compounds> 1-Hydroxy-7-azabenzotriazole
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1-Hydroxy-7-azabenzotriazole

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Origin: China

Cas No: 39968-33-7

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.:
    39968-33-7
    Other Names:
    HOAT
    MF:
    C5H4N4O
    EINECS No.:
    39968-33-7
    Place of Origin:
    China
    Type:
    Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates
    Purity:
    ≥98%
    Brand Name:
    FinerChem
    Model Number:
    39968-33-7
    Application:
    Condensation reagent
    Appearance:
    white crystalline powder
    Product name:
    HOAT
    CAS:
    39968-33-7
    Molecular Weight:
    136.11

    Packaging&Delivery

    Packaging Details
    Aluminum foil bag for within 10kg
    Fiber drum for 10kg and more
    Port
    SHANGHAI, BEIJING, QINGDAO, SHENZHEN, TIANJIN
    Lead Time:
    Quantity(Kilograms)1 - 500>500
    Est. Time(days)4To be negotiated

    Products Description

    Product Name
    1-Hydroxy-7-azabenzotriazole
    CAS No.
    39968-33-7
    Appearance
    Off-white to white crystalline powder
    Assay
    ≥98%
    Capacity
    100mt/year
    Min.packing
    1gram
    Application
    Condensation reagent
    Standard
    Export 
    Brand
    Finerchem 


    More information

     Synonyms: HOAT
                        3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol
    Molecular Formula: C5H4N4O 
    Molecular Weight: 136.11 
    CAS Registry Number: 39968-33-7 
    Melting point: 213-216 ºC 
    Decomposition: 213-216 ºC

  • Property

    CAS No.: 39968-33-7 Formula: C5H4N4O Molecular Weight: 136.11100

    Description

    1-Hydroxy-7-azabenzotriazole, commonly abbreviated HOAt, is a triazole used as a peptide coupling reagent. It suppresses the loss of chirality.

    Basic Info

    Chemical Name 1-Hydroxy-7-azabenzotriazole
    Synonyms

    1-Hydroxy-7-Azabenzotriazole;
    3H-1,2,3-Triazolo[4,5-b]pyridin-3-ol;
    3H-[1,2,3]-Triazolo[4,5-b]pyridin-3-ol;
    3H-[1,2,3]Triazolo[4,5-b]pyridin-3-ol;
    3-hydroxytriazolo[4,5-b]pyridine;
    7-Aza-1-hydroxybenzotriazole;

    CAS No. 39968-33-7
    Molecular Formula C5H4N4O
    Molecular Weight 136.11100
    PSA 63.83000
    LogP 0.06360

    Properties

    Appearance & Physical State yellow crystalline powder
    Density 1.74 g/cm3
    Boiling Point 175ºC
    Melting Point 213-216ºC
    Flash Point 181.7ºC
    Refractive Index n20/D 1.441
    Storage Condition Store at RT.

    Safety Info

    Safety Statements S16-S26-S37/39
    HS Code 2933990090
    WGK Germany 1
    RIDADR UN 1993 3/PG 3
    Risk Statements R11; R36/37/38; R5
    Hazard Codes F
    Caution Statement P201; P280; P305 + P351 + P338; P308 + P313
    Signal Word Danger
    Symbol GHS02, GHS05, GHS07, GHS08
    Hazard Declaration H226; H302 + H312 + H332; H318; H360D

    Synthesis Route

    t-Butoxycarbonylglycine+→1-Hydroxy-7-azabenzotriazole+N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-2-(tert-butoxycarbonylamino)acetamide
    3-Methoxy-2-nitropyridine→1-Hydroxy-7-azabenzotriazole
    3-methoxytriazolo[4,5-b]pyridine+Sodium thiophenolate→1-Hydroxy-7-azabenzotriazole+Thioanisole

    Precursor

    3-methoxytriazolo[4,5-b]pyridine
    t-Butoxycarbonylglycine

    3-Methoxy-2-nitropyridine

    Downstream Product

    3-methoxytriazolo[4,5-b]pyridine

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