85-74-5 Usage
General Description
4-Aminonaphthalene-1,7-disulfonic acid is a chemical compound with the molecular formula C10H9NO6S2. It is an aromatic compound that contains two sulfonic acid groups attached to a naphthalene ring. This chemical is mainly used as a dye intermediate in the production of various dyes, particularly those used in the textile industry. It is also used in the manufacturing of optical brighteners and fluorescent dyes. Additionally, 4-aminonaphthalene-1,7-disulfonic acid has potential applications in the field of medicine as a fluorescent probe for the detection of various biomolecules. However, it is important to handle this compound with caution as it is known to be toxic and harmful if ingested or inhaled.
Check Digit Verification of cas no
The CAS Registry Mumber 85-74-5 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 5 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 85-74:
(4*8)+(3*5)+(2*7)+(1*4)=65
65 % 10 = 5
So 85-74-5 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO6S2/c11-9-3-4-10(19(15,16)17)8-5-6(18(12,13)14)1-2-7(8)9/h1-5H,11H2,(H,12,13,14)(H,15,16,17)
85-74-5Relevant 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.
