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4-Chloronaphthalene-1-sulfonic acid is an organic compound with the chemical formula C10H7ClO3S. It is a derivative of naphthalene, a polycyclic aromatic hydrocarbon, with a chlorine atom attached at the 4-position and a sulfonic acid group at the 1-position. 4-chloronaphthalene-1-sulfonic acid is known for its potential applications in the synthesis of dyes and pharmaceuticals, as well as in various chemical reactions due to its unique structure. It is typically synthesized through the chlorosulfonation of naphthalene, a process that involves the introduction of both chlorine and sulfonic acid groups. The compound is characterized by its white or pale yellow crystalline appearance and is soluble in water. It is important to handle 4-chloronaphthalene-1-sulfonic acid with care due to its potential environmental and health impacts, and it is often used in research and industrial settings where its specific chemical properties are beneficial.

6328-72-9

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6328-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6328-72-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,2 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6328-72:
(6*6)+(5*3)+(4*2)+(3*8)+(2*7)+(1*2)=99
99 % 10 = 9
So 6328-72-9 is a valid CAS Registry Number.
InChI:InChI=1/C10H7ClO3S/c11-9-5-6-10(15(12,13)14)8-4-2-1-3-7(8)9/h1-6H,(H,12,13,14)

6328-72-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-chloronaphthalene-1-sulfonic acid

1.2 Other means of identification

Product number -
Other names 4-chloro-naphthalene-sulfonic acid

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 -
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More Details:6328-72-9 SDS

6328-72-9Relevant academic research and scientific papers

Linear Free Energy Relationship in Naphthalene System: Kinetics of Hydrolysis of 4-Substituted 1-Naphthalenesulphonyl Chlorides

Perumal, S.,Selvaraj, S.,Viswanathan, T. K.,Arumugam, N.

, p. 436 - 438 (2007/10/02)

The kinetics of hydrolysis of several 4-substituted 1-naphthalenesulphonyl chlorides have been studied in aqueous acetone at three temperatures.The reaction is first order in sulphonyl chloride.Presence of electron-withdrawing substituents in the naphthyl ring enhances the rate while that of opposite ones retards it.The small ρ-values obtained in the correlation analysis using the Hammett and dual substituent parameter equations are consistent with either an SN2 or an SAN mechanism.

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