618-03-1

Basic information

• Product Name: 4-Methylmetanilic acid
• Synonyms: 3-amino-4-methyl-benzenesulfonicaci;2-AMINOTOLUENE-4-SULFONIC ACID;2-aminotoluene-4-sulphonic acid;4-methylmetanilic acid;o-Toluidine-5-sulfonic acid;o-Toluidine-5-sulfonic acid (NH2=1);3-azanyl-4-methyl-benzenesulfonic acid
• CAS NO: 618-03-1
• Molecular Formula: C₇H₉NO₃S
• Molecular Weight: 187.22
• EINECS: 210-540-0
• Mol File: 618-03-1.mol
• Article Data: 6

Chemical Properties

• Boiling Point: 374.86℃[at 101 325 Pa]
• Appearance: /
• Density: 1.431 g/cm³
• Vapor Pressure: 0Pa at 25℃
• Refractive Index: 1.61
• PKA: -1.01±0.50(Predicted)
• Water Solubility: 17.4g/L at 17℃
• CAS DataBase Reference: 4-Methylmetanilic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Methylmetanilic acid(618-03-1)
• EPA Substance Registry System: 4-Methylmetanilic acid(618-03-1)

Safety Data

• Hazardous Substances Data: 618-03-1(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

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

Upstream product

• 97-06-3 4-methyl-3-nitro-benzenesulfonic acid 
• 36717-39-2 2,2'-dimethyldianilinium sulfate 
• 7664-93-9 sulfuric acid 
• 95-53-4 o-toluidine 
• 88-72-2 1-methyl-2-nitrobenzene 
• 104-15-4 toluene-4-sulfonic acid 

Downstream Products

• 98-34-0 3-chloro-4-methylbenzenesulfonic acid 
• 36717-41-6 4-Amino-5-methylbenzene-1,2-disulfonic acid 
• 118-92-3 anthranilic acid 
• 4592-97-6 2,3,5-trichloro-6-methyl-1,4-benzoquinone 
• 121-04-0 toluene-2,4-disulfonic acid 

Relevant articles and documents

Synthesis of 2-Methoxy-4-(methylsulfanyl)benzoic Acid — An Intermediate Product in the Preparation of the Cardiotonic Drugs Sulmazole and Isomazole

Readily available 4-methyl-3-nitrobenzenesulfonic acid and 2-methyl-5-nitrophenol were used to develop two alternative approaches to the synthesis of 2-methoxy-4-(methylsulfanyl)benzoic acid in total yields of 17% and 37%, respectively. The synthesis starting from 2-methyl-5-nitrophenol is more process-oriented and can be used in the resynthesis of Sulmazole and Isomazole.

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.

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.