489-78-1

Basic information

• Product Name: 5-AMINO-1-NAPHTHOL-3-SULFONIC ACID
• Synonyms: M ACID;1-AMINO-5-NAPHTHOL-7-SULFONIC ACID;5-AMINO-1-NAPHTHOL-3-SULFONIC ACID;8-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID;8-amino-4-hydroxynaphthalene-2-sulphonic acid;8-amino-4-hydroxynaphthalene-2-sulfonic acid;5-AMINO-1-NAPHTHOL-3-SULFONIC ACID HYDRATE;5-AMINO-1-NAPHTHOL-3-SULFONIC ACID 97+%
• CAS NO: 489-78-1
• Molecular Formula: C₁₀H₉NO₄S
• Molecular Weight: 239.25
• EINECS: 207-700-7
• Product Categories: Intermediates of Dyes and Pigments
• Mol File: 489-78-1.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• Density: 1.627 g/cm³
• Refractive Index: 1.748
• PKA: -0.35±0.40(Predicted)
• CAS DataBase Reference: 5-AMINO-1-NAPHTHOL-3-SULFONIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 5-AMINO-1-NAPHTHOL-3-SULFONIC ACID(489-78-1)
• EPA Substance Registry System: 5-AMINO-1-NAPHTHOL-3-SULFONIC ACID(489-78-1)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 489-78-1(Hazardous Substances Data)

Usage

General Description

5-Amino-1-Naphthol-3-Sulfonic Acid (also known as 5-Amino-1-Naphthalenesulfonic Acid) is a chemical compound with the molecular formula C10H9NO4S. It often exists as a slightly yellow crystalline powder. 5-AMINO-1-NAPHTHOL-3-SULFONIC ACID is primarily used as an intermediate in the synthesis of various dyes, particularly those used in textiles, printing, and leather industries. It is also used in scientific research for colorimetric analysis and as a biological stain. Its potential toxicity or hazards should be handled and disposed of according to safety guidelines due to potential harmful effects on eyes, skin, or if inhaled or ingested.

InChI:InChI=1/C10H9NO4S/c11-9-3-1-2-7-8(9)4-6(5-10(7)12)16(13,14)15/h1-5,12H,11H2,(H,13,14,15)

Upstream product

• 18425-74-6 1-nitro-7-naphthalenesulfonic acid 
• 575-36-0 1-acetamidonaphthalene 
• 67900-43-0 5-amino-naphthalene-1,3,6-trisulfonic acid 
• 84-89-9 1-aminonaphthalene-5-sulfonic acid 
• 13306-42-8 5-Aminonaphthalene-1,3-disulfonic acid 
• 7664-93-9 sulfuric acid 
• 7732-18-5 water 

Downstream Products

• 1351863-08-5 C₁₇H₁₆BNO₆S 
• 759426-84-1 8-anilino-4-hydroxy-naphthalene-2-sulfonic acid 
• 603-80-5 3-hydroxy 2-methylbenzoic acid 

Relevant articles and documents

Monoazo compounds having vinylsulfone type fiber reactive group and method for dyeing or printing fiber materials using the same

A monoazo compound of the following formula, STR1 wherein D is phenylene or naphthylene; X is halogeno, pyridinio or STR2 B is --OR3, --SR4, STR3 in which R3, R4, R5 and R6 are each hydrogen, alkyl, phenyl, naphthyl or benzyl, r is 0 or 1, and E is O, SO, SO2, CH2 or NR8, in which R8 is hydrogen or C1 -C4 alkyl; R, R1, R2 and R7 are each hydrogen or alkyl; A1, A2 and A3 are each phenylene, naphthylene or alkylene; Z1, Z2 and Z3 are each --SO2 CH=CH2 or --SO2 CH2 CH2 Y, in which Y is a splittable group; and p is 0 or 1; which compound is useful for dyeing or printing fiber materials to obtain a product dyed or printed in a color superior in various fastness properties with superior build-up property.