56375-83-8

Basic information

• Product Name: 3,4-Dimethylaniline-6-sulfonic acid
• Synonyms: 3,4-DIMETHYLANILINE-6-SULFONIC ACID;2-AMINO-4,5-DIMETHYLBENZENESULFONIC ACID;5-amino-o-xylene-4-sulphonic acid;Einecs 260-136-3
• CAS NO: 56375-83-8
• Molecular Formula: C₈H₁₁NO₃S
• Molecular Weight: 201.24
• EINECS: 260-136-3
• Product Categories: Intermediates of Dyes and Pigments
• Mol File: 56375-83-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: white to yellowish powder
• Density: 1.368 g/cm³
• Refractive Index: 1.595
• PKA: -1.18±0.50(Predicted)
• CAS DataBase Reference: 3,4-Dimethylaniline-6-sulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-Dimethylaniline-6-sulfonic acid(56375-83-8)
• EPA Substance Registry System: 3,4-Dimethylaniline-6-sulfonic acid(56375-83-8)

Safety Data

• Hazardous Substances Data: 56375-83-8(Hazardous Substances Data)

Usage

General Description

3,4-Dimethylaniline-6-sulfonic acid is a derivative of aniline, which is an organic compound commonly used in the chemical industry. It consists of a benzene ring attached to an amine group and two methyl groups, with a sulfonic acid attached at the 6th carbon of the ring. 3,4-Dimethylaniline-6-sulfonic acid is typically used in dye production due to its ability to form colored compounds when combined with other substances. It can also be utilized in the synthesis of other chemical products like pharmaceuticals and pesticides. Due to its nature, safety precautions should be maintained while handling to avoid contact, ingestion, or inhalation, which can lead to potential health hazards.

InChI:InChI=1/C8H11NO3S/c1-5-3-7(9)8(4-6(5)2)13(10,11)12/h3-4H,9H2,1-2H3,(H,10,11,12)

Upstream product

• 95-64-7 4-amino-o-xylene 
• 7664-93-9 sulfuric acid 
• 838840-40-7 4,5-dimethyl-2-nitro-benzenesulfonic acid 
• 67013-53-0 3,4,3',4'-tetramethyldianilinium sulfate 
• 2198-54-1 N-(3,4-dimethylphenyl)acetamide 
• 532438-52-1 1,3-bis(3,4-dimethylphenyl)urea 

Downstream Products

• 90006-57-8 2-chloro-4,5-dimethyl-benzenesulfonic acid amide 

Relevant articles and documents

Sulfonation of arylamines: Part 11 - Preparation and thermal decomposition of ring-substituted arylammonium hydrogen sulfates

Eight ring-substituted arylammonium hydrogen sulfates (RSAHS) have been prepared by reacting corresponding arylamine with excess of conc. H2SO4. Their thermal decomposition has been investigated by TG and DSC techniques. The decomposition pathways have also been suggested.

Studies of Reactions of Amines with Sulfur Trioxide. VI. Thermal Reactions of Anilinium, Dimethylanilinium, and Trimethylanilinium Salts of Butylamidosulfuric Acid

When the title compounds were heated in an evacuated reaction vessel, both transsulfonation and rearrangement occurred.At lower temperatures (80-120 deg C) the corresponding phenylamidosulfates and sulfophenylamidosulfates (transsulfonation products) were the main products.Increasing temperature led to the formation of ring mono- and disulfonates (rearrangement products) at the expense of the transsulfonation products.The sulfonate group always migrated to the ortho and/or para position(s) to the amino group.In no case was any meta-product detected.There was no significant difference in the ease of transsulfonation among the anilinium salts studied exept 2,6-dimethyl- and 2,4,6-trimethylanilinium salts.On the other hand, the ease of rearrangement and the orientation of ring sulfonation depended strongly on the structure of the substrate anilines.The thermal reactions of 2,4,6-trimethylanilinium butylamidosulfate produced (2,4,6-trimethylphenylimido)bis(sulfate) in addition to (2,4,6-trimethylphenylamido)sulfate.This is the first isolation of an arylimidobis(sulfate) from such reactions.Mechanisms of the transsulfonation and rearrangement have been discussed.