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3,5-dinitrosalicylic acid

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Origin: China

Cas No: 609-99-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 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.:
    609-99-4
    Other Names:
    3,5-Dinitrosalicylic acid
    MF:
    C7H4N2O7
    EINECS No.:
    210-204-3
    Place of Origin:
    Shandong, China
    Type:
    Pharmaceutical Intermediates
    Purity:
    99.0%min
    Brand Name:
    Lookchem
    Model Number:
    ZJX-609-99-4
    Application:
    Used as pharmaceutical intermediate
    Appearance:
    White Powder
    Product name:
    3,5-Dinitrosalicylic acid
    CAS:
    609-99-4
    Melting point:
    170 °C
    Boiling point:
    369.91°C (rough estimate)
    Density:
    1.7914 (rough estimate)
    Shelf life:
    2 Years
    MOQ:
    1 Kg
    MW:
    228.12
    Sample:
    Available
    COA:
    Available

    Packaging&Delivery

    Packaging Details
    25kg/drum
    Port
    Shanghai Shenzhen Qingdao

    Products Description

    Product name
    3,5-Dinitrosalicylic acid
    CAS NO
    609-99-4
    Application
    Used as pharmaceutical intermediates
    Color
    white
    MOQ
    1kg
    Delivery
    5-9 day

  • Property

    CAS No.: 609-99-4 Formula: C7H4N2O7 Molecular Weight: 228.11600

    Description

    3,5-Dinitrosalicylic acid (DNS or DNSA, IUPAC name 2-hydroxy-3,5-dinitrobenzoic acid) is an aromatic compound that reacts with reducing sugars and other reducing molecules to form 3-amino-5-nitrosalicylic acid, which strongly absorbs light at 540 nm. It was first introduced as a method to detect reducing substances in urine and has since been widely used, for example, for quantifying carbohydrate levels in blood. It is mainly used in assay of alpha-amylase. However, enzymatic methods are usually preferred due to DNS lack of specificity.

    Basic Info

    Chemical Name 3,5-dinitrosalicylic acid
    Synonyms

    Benzoic acid, 2-hydroxy-3,5-dinitro-;
    3,5-Dinitrosalicylic acid;

    CAS No. 609-99-4
    Molecular Formula C7H4N2O7
    Molecular Weight 228.11600
    PSA 149.17000
    LogP 1.95320

    Properties

    Appearance & Physical State Off-white crystals
    Density 1.838 g/cm3
    Boiling Point 387.2ºC at 760 mmHg
    Melting Point 168-174ºC
    Flash Point 173.8ºC
    Water Solubility soluble
    Stability Stable. Incompatible with strong oxidizing agents, strong bases, strong acids.
    Storage Condition Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

    Safety Info

    RTECS VO2965000
    Hazard Class 6.1(b)
    Safety Statements S22-S24/25
    HS Code 2916399090
    WGK Germany 3
    Packing Group III
    RIDADR UN 2811
    Risk Statements R22; R37/38
    Hazard Codes Xn

    Synthesis Route

    nitric acid+acetic acid→3-Nitrosalicylic Acid+2,3-dinitrophenol
    salicylic acid→3,5-dinitrosalicylic acid
    2-Chloro-3,5-dinitrobenzoic acid→3,5-dinitrosalicylic acid

    Precursor

    3,5-dinitro-2-(2-hydroxyethoxy)benzoic acid, methyl ester
    Meisenheimer complex A
    salicylic acid
    2-Chloro-3,5-dinitrobenzoic acid

    Downstream Product

    tetrachloro-1,4-benzoquinone

    3,5-Diamino-2-hydroxybenzoic acid
    ethyl 2-hydroxy-3,5-dinitrobenzoate

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