134-54-3 Usage
General Description
4-aminonaphthalene-2-sulphonic acid is a chemical compound that consists of a naphthalene ring with an amino group at the 4th position and a sulfonic acid group at the 2nd position. It is commonly used in the production of dyes and pigments, particularly in the textile and paper industries. The sulfonic acid group makes the compound water-soluble, allowing it to be easily incorporated into aqueous-based formulations. It is also utilized as a pH indicator and in the synthesis of pharmaceuticals and agrochemicals. However, 4-aminonaphthalene-2-sulphonic acid is considered toxic and may pose health and environmental hazards, requiring careful handling and disposal.
Check Digit Verification of cas no
The CAS Registry Mumber 134-54-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134-54:
(5*1)+(4*3)+(3*4)+(2*5)+(1*4)=43
43 % 10 = 3
So 134-54-3 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO3S/c11-10-6-8(15(12,13)14)5-7-3-1-2-4-9(7)10/h1-6H,11H2,(H,12,13,14)
134-54-3Relevant articles and documents
Fiber-reactive disazo brown dye having vinylsulfone-type reactive group
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, (2008/06/13)
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.
