92-28-4

Basic information

• Product Name: amino-R acid
• Synonyms: 3-aminonaphthalene-2,7-disulphonic acid;amino-R acid;3-aminonaphthalene-2,7-disulfonic acid;Amido R acid;2,7-Naphthalenedisulfonic acid, 3-amino-;3-azanylnaphthalene-2,7-disulfonic acid
• CAS NO: 92-28-4
• Molecular Formula: C₁₀H₉NO₆S₂
• Molecular Weight: 303.31156
• EINECS: 202-143-6
• Mol File: 92-28-4.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• Density: 1.769g/cm³
• Refractive Index: 1.733
• CAS DataBase Reference: amino-R acid(CAS DataBase Reference)
• NIST Chemistry Reference: amino-R acid(92-28-4)
• EPA Substance Registry System: amino-R acid(92-28-4)

Safety Data

• RIDADR: 1759
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 92-28-4(Hazardous Substances Data)

Usage

Uses

Manufacture of dyes.

InChI:InChI=1/C10H9NO6S2/c11-9-4-6-1-2-8(18(12,13)14)3-7(6)5-10(9)19(15,16)17/h1-5H,11H2,(H,12,13,14)(H,15,16,17)

Downstream Products

• 132-34-3 3-amino-4-[4'-(2-amino-6-sulfo-[1]naphthylazo)-3,3'-dimethyl-biphenyl-4-ylazo]-naphthalene-2,7-disulfonic acid 
• 6399-72-0 6-amino-7-hydroxy-2-naphthalenesulphonic acid 
• 110845-60-8 3-anilino-naphthalene-2,7-disulfonic acid 
• 88246-88-2 1,2-Diaminonaphthalen-3,6-disulfonsaeure 
• 55720-40-6 2,3,6-trichloronaphthalene 
• 92-41-1 2,7-naphthalenedisulfonic acid 

Relevant articles and documents

Reactive dye having both monochlorotriazinyl and vinylsulfone type reactive groups

A novel reactive monoazo dye, capable of giving cellulose fiber materials a deep orange to scarlet color and superior in build-up and chlorine fastness properties, represented by a free acid of the formula, STR1 wherein R1 is hydrogen, methyl or ethyl; R2 is an alkyl having 1 to 4 carbons that is either unsubstituted or substituted with hydroxy, cyano, alkoxy, halogen, carboxy, alkoxycarbonyl or sulfonic acid; Z is hydrogen or sulfonic acid; A is phenylene and is either unsubstituted or substituted with 1 or 2 substituents selected from the group consisting of methyl, ethyl, methoxy, ethoxy, chlorine, bromine and sulfonic acid, or natphthylene that is either unsubstituted or substituted with sulfonic acid; X is --SO2 CH=CH2 or --SO2 CH2 CH2 Y in which Y is a group that is splittable by alkalis; and m is an integer of 1 to 3.

Fiber-reactive disazo brown dye having vinylsulfone-type reactive group

A compound, or a salt thereof, represented by the following formula, STR1 wherein A is a substituted or unsubstituted phenylene or naphthylene group, B is STR2 in which R3 is a hydrogen atom or a lower alkyl, lower alkoxy, acylamino or ureido group, and R4 is a hydrogen atom or a lower alkyl or lower alkoxy group, R1 and R3 are independently a hydrogen atom or a substituted or unsubstituted lower alkyl group, X is a substituted or unsubstituted amino, lower alkoxy, substituted phenoxy or sulfo group, Y is --SO2 CH=CH2 or --SO2 CH2 CH2 Z, in which Z is a group capable of being split by the action of an alkali, and m is 2 or 3, which is useful for dyeing hydroxyl group- or amide group-containing fiber materials to give dyed products of a brown color having excellent fastness properties with good build-up property.