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5859-08-5

3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid is a complex organic compound with the molecular formula C18H16N2O7S2. It is characterized by the presence of a hydroxyl group, an azo group, and two sulfonic acid groups. 3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid is derived from naphthalene, a polycyclic aromatic hydrocarbon, and features a p-tolylazo group, which is a substituted azo group with a p-tolyl (a methyl group attached to a phenyl ring). The disulfonic acid groups provide the molecule with acidic properties and water-solubility. This chemical is often used as a chromogenic agent in analytical chemistry for the detection and quantification of certain metal ions, particularly in colorimetric assays. Its structure and properties make it a valuable tool in the field of chemical analysis, where it can form colored complexes with specific ions, facilitating their detection and measurement.

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  • 5859-08-5 Structure

  • Basic information

    1. Product Name: 3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid
    2. Synonyms:
    3. CAS NO:5859-08-5
    4. Molecular Formula:
    5. Molecular Weight: 422.439
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 5859-08-5.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid(CAS DataBase Reference)
    10. NIST Chemistry Reference: 3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid(5859-08-5)
    11. EPA Substance Registry System: 3-hydroxy-4-p-tolylazo-naphthalene-2,7-disulfonic acid(5859-08-5)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 5859-08-5(Hazardous Substances Data)

5859-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5859-08-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,5 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5859-08:
(6*5)+(5*8)+(4*5)+(3*9)+(2*0)+(1*8)=125
125 % 10 = 5
So 5859-08-5 is a valid CAS Registry Number.

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