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3348-00-3

Carboxyphenophthalein, also known as phenolphthalein-3-carboxylic acid, is a synthetic organic compound with the chemical formula C21H14O5. It is a derivative of phenolphthalein, a well-known pH indicator, and is characterized by its ability to change color in response to changes in acidity or alkalinity. In its pure form, carboxyphenophthalein is a white crystalline powder that is soluble in water and ethanol. It is primarily used as a pH indicator in titration processes, particularly in the determination of the endpoint in the titration of strong acids with strong bases. The compound exhibits a color change from colorless to a deep magenta or purple when the pH increases from acidic to basic conditions, typically around a pH of 8.2 to 10.0. Its chemical structure and properties make it a valuable tool in various analytical and educational applications, allowing for the precise measurement and visualization of pH changes in solutions.

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  • 3348-00-3 Structure

  • Basic information

    1. Product Name: carboxyphenophthalein
    2. Synonyms:
    3. CAS NO:3348-00-3
    4. Molecular Formula:
    5. Molecular Weight: 362.339
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 3348-00-3.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: carboxyphenophthalein(CAS DataBase Reference)
    10. NIST Chemistry Reference: carboxyphenophthalein(3348-00-3)
    11. EPA Substance Registry System: carboxyphenophthalein(3348-00-3)

  • 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: 3348-00-3(Hazardous Substances Data)

3348-00-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3348-00-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,4 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 3348-00:
(6*3)+(5*3)+(4*4)+(3*8)+(2*0)+(1*0)=73
73 % 10 = 3
So 3348-00-3 is a valid CAS Registry Number.

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