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82-49-5

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82-49-5 Usage

General Description

1-Anthraquinonesulfonic acid, also known as anthraquinone-1-sulfonic acid, is an organic compound with the chemical formula C14H8O5S. It is a derivative of anthraquinone and contains a sulfonic acid functional group, which makes it highly water-soluble. This chemical is commonly used as a dye intermediate and as a catalyst in various chemical reactions. Its solubility and reactivity make it a valuable compound for use in the production of dyes, pigments, and pharmaceuticals. Additionally, it is used as a colorant in various industries, including textiles, paper, and plastics. Due to its versatility and wide range of applications, 1-Anthraquinonesulfonic acid is a valuable chemical in the manufacturing and production of a variety of products.

Check Digit Verification of cas no

The CAS Registry Mumber 82-49-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 82-49:
(4*8)+(3*2)+(2*4)+(1*9)=55
55 % 10 = 5
So 82-49-5 is a valid CAS Registry Number.
InChI:InChI=1/C14H8O5S/c15-13-8-4-1-2-5-9(8)14(16)12-10(13)6-3-7-11(12)20(17,18)19/h1-7H,(H,17,18,19)

82-49-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-Anthraquinonesulfonic acid

1.2 Other means of identification

Product number -
Other names Anthraquinone-1-sulfonicacid

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:82-49-5 SDS

82-49-5Relevant articles and documents

Carbon-carbon cleavage of aryl diamines and quinone formation using sodium periodate: a novel application

Telvekar, Vikas N.,Takale, Balaram S.

experimental part, p. 3940 - 3943 (2010/08/07)

A first novel synthetic utility of sodium periodate for aryl diamine carbon-carbon cleavage is described. Aryl 1,2-diamine compounds were successfully converted into corresponding nitriles, while the developed method is also useful for the preparation of quinones from corresponding aryl 1,4-diamine compounds. The advantages of this protocol are shorter reaction time and mild reaction conditions to obtain moderate to good yields.

Equilibrium and Kinetic Studies of Some Reactions of 1-Anthraquinonesulfenic Acid and Its Methyl Ester

Kice, John L.,Weclas-Henderson, Ludmilla,Kewan, Aly

, p. 4198 - 4203 (2007/10/02)

1-Anthraquinonesulfenic acid (2) is a stable arenesulfenic acid.Its pKa, and the products and kinetics of its reactions, and those of its methyl ester (3), with both a thiol (n-BuSH) and m-chloroperoxybenzoic acid (MCPBA), have been determined.The results are compared with those for the corresponding reactions of two stable areneselenic acids (1a and 1b).The pKa of 2 (7.51) shows it to be ca. 3 pK units stronger acid than o-O2NC6H4SeOH (1a).Reaction of 2 and 3 with n-BuSH occurs at comparable rates and gives n-butyl 1-antraquinonyl disulfide (5) via a reactionthat is acid catalyzed.The rate of reaction of 2 with the thiol is ca. 104 slower than the rate of reaction of the structurally analogous areneselenenic acid, o-PhC(O)C6H4SeOH (1b).The probable reason for this large difference in rates is outlined.The difference in the rates of oxidation of 2 and 1b by MCPBA is much smaller, the selenenic acid being oxidized only 6 times faster than 2.Just as was found with selenenic acid 1a and its methyl ester, the rate of oxidation of sulfenic acid 2 by MCPBA is much faster than the rate of oxidation of its methyl ester.

Process for concentrating halogenoanthraquinones

-

, (2008/06/13)

A process for concentrating at least one of (a) individual halogenoanthraquinones (b) binary mixtures of di-halogenoanthraquinones and (c) binary mixtures of trihalogenoanthraquinones, from a mixture containing at least two halogenoanthraquinones, comprising subjecting said mixture containing at least two halogenoanthraquinones to fractional vacuum distillation in a heated rectification column having an efficiency corresponding to about 20 to 50 theoretical stages with an absolute pressure at the top of about 0.5 to 50 mm Hg and a reflux to take-off ratio of about 5/1 to 50/1. Advantageously, distillation is carried out continuously in a cascade of columns, the products withdrawn from the top of the first column being 2-chloroanthraquinone in the first stage, 1-chloroanthraquinone in the second stage, 1,6- and 1,7-dichloroanthraquinone in the third stage and 1,5- and 1,8-dichloroanthraquinone in the fourth stage, 1,4,5- and 1,4,6-trichloroanthraquinone being obtained in the sump of the 4th stage and being separated therefrom by film evaporation. The mixture of halogenoanthraquinones is advantageously a mixture of chloroanthraquinones such as is obtained by the action of chlorine, chloric acid or a chlorate on various industrial mixtures of nitro- or sulfo-anthraquinones.

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