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CAS

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91-24-7

Benzenesulfonic acid, 2-ethyl-, also known as 2-ethylbenzenesulfonic acid or ethylphenylsulfonic acid, is an organic compound with the chemical formula C8H10O3S. It is a derivative of benzenesulfonic acid, where an ethyl group (-CH2CH3) is attached to the 2-position of the benzene ring. This white crystalline solid is soluble in water and has a melting point of approximately 90°C. It is primarily used as an intermediate in the synthesis of various pharmaceuticals, dyes, and other organic compounds. The compound is also known for its surfactant properties, making it useful in detergents and cleaning agents. Its chemical structure and properties make it a versatile building block in the chemical industry, with applications ranging from the production of agrochemicals to the formulation of specialty chemicals.

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  • 91-24-7 Structure

  • Basic information

    1. Product Name: Benzenesulfonic acid, 2-ethyl-
    2. Synonyms: Ethylbenzenesulfonicacid;2-Aethyl-benzolsulfonsaeure;Benzenesulfonic acid,2-ethyl;Ethylbenzol-2-sulfonsaeure;2-ethyl-benzenesulfonic acid;o-Aethyl-benzolsulfonsaeure;
    3. CAS NO:91-24-7
    4. Molecular Formula: C8H10O3S
    5. Molecular Weight: 186.232
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 91-24-7.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: 1.284±0.06 g/cm3(Predicted)
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Benzenesulfonic acid, 2-ethyl-(CAS DataBase Reference)
    10. NIST Chemistry Reference: Benzenesulfonic acid, 2-ethyl-(91-24-7)
    11. EPA Substance Registry System: Benzenesulfonic acid, 2-ethyl-(91-24-7)

  • 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: 91-24-7(Hazardous Substances Data)

91-24-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91-24-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 1 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91-24:
(4*9)+(3*1)+(2*2)+(1*4)=47
47 % 10 = 7
So 91-24-7 is a valid CAS Registry Number.

91-24-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-ethylbenzenesulfonic acid

1.2 Other means of identification

Product number -
Other names Ethylbenzol-2-sulfonsaeure

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:91-24-7 SDS

91-24-7Downstream Products

91-24-7Relevant articles and documents

HYDROLYSIS OF AROMATIC SULFONIC ACIDS UNDER THERMODYNAMIC CONTROL OF THE REACTION

Krylov, E. N.,Volgina, L. V.,Isaeva, G. Yu.

, p. 1129 - 1133 (2007/10/02)

Linear mathematical models which describe the hydrolysis of alkyl- and halobenzenesulfonyl acids under the conditions for their isomerization in sulfuric acid have been obtained by the method of mathematical experiment planning.The value of the effective rate constants of hydrolysis calculated according to the models for comparative conditions (150 deg C, 3 moles of 85percent sulfuric acid) were used to obtain the correlation between log kh and the ? constants of the substituents.The correlation corresponds the electrophilic nature of the hydrolysis process (ρ = -4.69).The strong influence of the electronic effects of the substituents on the rate of hydrolysis is an indication of the development of a considerable positive charge on the reaction center in the transition state.

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