6837-93-0

Basic information

• Product Name: 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid
• Synonyms: 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid;1-Amino-8-(4-methylphenylsulfonyloxy)naphthalene-3,6-disulfonic acid;4-Amino-5-[[(4-methylphenyl)sulfonyl]oxy]-2,7-naphthalenedisulfonic acid;8-Amino-1-(4-methylphenylsulfonyloxy)-3,6-naphthalenedisulfonic acid
• CAS NO: 6837-93-0
• Molecular Formula: C₁₇H₁₅NO₉S₃
• Molecular Weight: 473.4973
• Mol File: 6837-93-0.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• Density: 1.5197 (rough estimate)
• Refractive Index: 1.7000 (estimate)
• PKA: -1.16±0.40(Predicted)
• CAS DataBase Reference: 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid(6837-93-0)
• EPA Substance Registry System: 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid(6837-93-0)

Safety Data

• Hazardous Substances Data: 6837-93-0(Hazardous Substances Data)

Usage

Description

4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid, also known as Acid Orange 35, is a fluorescent dye characterized by a naphthalene core with amino and tosyloxy functional groups, along with sulfonic acid groups at positions 2 and 7. It is water-soluble and displays strong fluorescence when exposed to ultraviolet light, making it a valuable compound in various scientific and industrial applications.

Uses

Used in Biological Research:
4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid is used as a fluorescent tracer for visualizing cellular structures and processes in cell biology studies. Its strong fluorescence upon ultraviolet excitation allows researchers to track and analyze cellular dynamics and interactions with high precision.
Used in Production of Colored Plastics:
In the plastics industry, 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid serves as a colorant, imparting vibrant hues to various plastic products. Its water solubility and chemical stability contribute to the consistent coloration of plastics during manufacturing processes.
Used in Industrial Processes:
4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid is utilized as a colorant in a range of industrial applications, including textiles, inks, and coatings. Its ability to produce intense colors and its compatibility with different materials make it a preferred choice for enhancing the visual appeal of various products.
Safety Precautions:
It is crucial to handle 4-amino-5-(tosyloxy)naphthalene-2,7-disulfonic acid with care due to its toxic nature if ingested or inhaled. Additionally, it can cause skin and eye irritation, necessitating proper protective measures during its use in laboratories and industrial settings.

InChI:InChI=1/C17H15NO9S3/c1-10-2-4-12(5-3-10)30(25,26)27-16-9-14(29(22,23)24)7-11-6-13(28(19,20)21)8-15(18)17(11)16/h2-9H,18H2,1H3,(H,19,20,21)(H,22,23,24)

Upstream product

• 90-20-0 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid 
• 98-59-9 p-toluenesulfonyl chloride 

Relevant articles and documents

Azo Compound Or Salt Thereof, And Dye-Based Polarizing Film And Dye-Based Polarizing Plate Containing Same

An azo compound represented by the following formula (1) or a salt thereof, Wherein A1 represents a naphthyl group which may have a substituent;A2, A3, and A4 each independently represent a phenyl group which may have a substituent or a naphthyl group which may have a substituent;R1 represents a hydrogen atom, a hydroxy group, a C1-4 alkoxy group, or a substituted or unsubstituted amino group;m represents an integer of 0 to 5;M represents a hydrogen atom or ion, a metal ion, or an ammonium ion;n represents 1 or 2;k represents 0 or 1; andeach hydrogen atom on ring a and ring b may be substituted with the substituent R1 or substituent SO3M.