133-78-8

Usage

Safety Profile

A severe eye irritant. When heated to decomposition it emitsvery toxic fumes of NOx and SOx.

InChI:InChI=1/C7H9NO3S/c1-5-4-6(8)2-3-7(5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11)

Upstream product

• 73291-07-3 m-toluidine; hydrogen sulfate 
• 73291-07-3 m-ditoluidinium sulfate 
• 7664-93-9 sulfuric acid 
• 108-44-1 1-amino-3-methylbenzene 
• 110-01-0 thiophene 
• 99-08-1 1-methyl-3-nitrobenzene 
• 854811-60-2 5-sulfamino-toluene-2-sulfonic acid 

Downstream Products

• 125744-13-0 4-(N-n-hexyl-tosylamino)-2-methyl-4'-nitro-diphenylsulfone 
• 125744-12-9 2-methyl-4'-nitro-4-(N-n-propyl-tosylamino)-diphenylsulfone 
• 125744-11-8 2-methyl-4'-nitro-4-tosylamino-diphenylsulfone 
• 125744-16-3 4-cyclohexylamino-2-methyl-4'-nitro-diphenylsulfone 
• 125744-17-4 4-cyclopentylamino-2-methyl-4'-nitro-diphenylsulfone 

Relevant academic research and scientific papers

Kinetics of Thermal Decomposition of Arylammonium Sulfates. Part 2. m-Ditoluidinium Sulfate

The thermal decomposition of m-ditoluidinium sulfate (m-DTS) has been studied and 2-methylsulfanilic acid (2-MSA) has been found to be the decomposition product.Isothermal TGA data on m-DTS were fitted in Avrami-Erofeev (n=2, 3), Contracting area, Contrac

Alkanol substituted disazo orange dye for nylon

The specification describes a new group of alkanol substituted disazo compounds that are useful in dyeing polyamide textile fibers in orange hues. The new compounds are compatible with several acid blue dyes and several acid red dyes that are commercially important as dyes for nylon. The new compounds are particularly well suited for use as the "yellow" component in trichromatic systems for dying polyamide carpeting and other textiles. The new compounds are relatively inexpensive to make and have outstanding application and fastness properties. Other aspects of the specification are concerned with a method of making the new compounds and with a method of dyeing polyamides with said compounds and to the novel dyed polyamides resulting from the use of the new group of compounds as dyes.

Triazinyl reactive dyes containing additional fiber reactive groups bound through the sulfonylalkylaminoalkylamino bridge

The invention relates to novel useful reactive dyes of the formula I STR1 in which: F is a radical selected from the group consisting of metal-free or metal-containing monoazo or disazo dyes containing at least one --SO3 H group, anthraquinone dyes, sulfophthalocyanine dyes, formazan dyes, phenazine dyes, oxanine dyes and nitroaryl dyes, R is hydrogen, C1 -C4 alkyl which is unsubstituted or substituted with --COOH or --SO3 H, cyanoethyl, or hydroxyethyl, X is fluorine, chlorine, bromine, --SO3 H, phenylsulfonyl or C1 -C4 -alkylsulfonyl, P is 1 or 2 and A is a radical of the formula STR2 in which: the groups designated "alk" are independently of each other straight or branched polymethylene radicals having 2 to 6 carbon atoms, and Z is β-halogenoethyl, vinyl, β-sulfatoethyl, β-thiosulfatoethyl or βacetoxyethyl.

Reactive dyestuffs comprising a triazine moiety and a vinylsulfonyl moiety both being linked by a substituted alkylene bridge member

A reactive dye of the formula STR1 in which: F is a radical selected from the group consisting of metal-free or metal-containing monoazo or disazo dyes containing at least one --SO3 H group, anthraquinone dyes, sulfophthalocyanine dyes, formazan dyes, phenazine dyes, oxazine dyes and nitroaryl dyes, R is hydrogen, C1 -C4 alkyl which is unsubstituted or substituted with --COOH or --SO3 H, cyanoethyl, or hydroxyethyl, X is fluorine, chlorine, bromine, --SO3 H, phenylsulfonyl or C1 -C4 -alkylsulfonyl, p is 1 or 2 and A is a radical of the formula STR2 in which: Y is chlorine, bromine, fluorine, --OH, --OSO3 H, --O-acyl, --CN, --COOH, --COO--C1 -C4 -alkyl, --CONH2 or --SO2 --Z, the group designated "alk" is a straight or branched polymethylene radical having 2 to 6 carbon atoms, V is STR3 hydrogen or C1 -C4 -alkyl which is unsubstituted or substituted by C1 -C2 -alkoxy, carboxyl, sulfo, halogen or hydroxy, Z is β-halogenoethyl, vinyl or β-acetoxyethyl, or A is a radical of the formulae STR4 in all of which R' is C1-6 -alkyl or hydrogen, Z is as defined above, o is 0 to 6, and m is 2 to 6.

Process for the preparation of aminoarylsulphonic acids in sulfolene solvent

Aromatic aminosulphonic acids which have a reduced content of discoloring by-products are obtained when aromatic amines are reacted with a sulphonating agent in a reaction medium at least some of which consists of tetramethylene sulphone.

Process for monoacylating water-soluble organic amino compounds

A process for the monoacylation of water-soluble organic amino compounds with 2,4,6-trifluoro-s-triazine, which comprises introducing all reactants simultaneously and continuously in the amounts necessary for the required throughput into the reaction space and removing the resultant reaction products continuously therefrom.