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CAS

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26590-31-8

Cresolsulfuric acid, also known as tosic acid, is a chemical compound formed by the combination of cresol and sulfuric acid. It is a strong acid with properties that make it useful in various applications, including as a catalyst or dehydration agent in organic synthesis. Its strong acidic nature and reactivity contribute to its utility in the production of dyes, pharmaceuticals, and fragrances. However, due to its highly corrosive properties, it poses significant health hazards and requires careful handling and safety measures to prevent skin, eye, or respiratory tract burns.

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  • 26590-31-8 Structure

  • Basic information

    1. Product Name: CRESOLSULFURIC ACID
    2. Synonyms: cresolsulphonic acid
    3. CAS NO:26590-31-8
    4. Molecular Formula: C7H8O4S
    5. Molecular Weight: 188.20102
    6. EINECS: 247-831-7
    7. Product Categories: N/A
    8. Mol File: 26590-31-8.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: 1.4 g/mL at 20 °C(lit.)
    6. Refractive Index: n20/D 1.548
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: CRESOLSULFURIC ACID(CAS DataBase Reference)
    10. NIST Chemistry Reference: CRESOLSULFURIC ACID(26590-31-8)
    11. EPA Substance Registry System: CRESOLSULFURIC ACID(26590-31-8)

  • Safety Data

    1. Hazard Codes: T
    2. Statements: 24/25-34
    3. Safety Statements: 23-26-36/37/39-45
    4. RIDADR: UN 3265 8/PG 2
    5. WGK Germany: 2
    6. RTECS:
    7. HazardClass: N/A
    8. PackingGroup: N/A
    9. Hazardous Substances Data: 26590-31-8(Hazardous Substances Data)

26590-31-8 Usage

Uses

Used in Organic Synthesis:
Cresolsulfuric acid is used as a catalyst in organic synthesis for its ability to accelerate chemical reactions, improving the efficiency and selectivity of the process.
Used in Chemical Production:
In the chemical industry, cresolsulfuric acid is used as a dehydration agent, facilitating the removal of water from compounds to produce desired products such as dyes, pharmaceuticals, and fragrances.
Used in Dye Production:
Cresolsulfuric acid is used as a key component in the production of various dyes, where its strong acidic properties contribute to the formation of color compounds.
Used in Pharmaceutical Manufacturing:
CRESOLSULFURIC ACID plays a role in the synthesis of pharmaceuticals, where its catalytic and dehydration properties are harnessed to produce specific drug molecules.
Used in Fragrance Industry:
Cresolsulfuric acid is utilized in the creation of fragrances, where its reactivity helps in the synthesis of aromatic compounds that contribute to the scent profiles of various products.

Check Digit Verification of cas no

The CAS Registry Mumber 26590-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,5,9 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 26590-31:
(7*2)+(6*6)+(5*5)+(4*9)+(3*0)+(2*3)+(1*1)=118
118 % 10 = 8
So 26590-31-8 is a valid CAS Registry Number.

26590-31-8Upstream product

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