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Home > Organic Chemistry > Hydrocarbons and Derivatives > 1-Amino-2-naphthol-4-sulfonic acid for Sale > 1-Amino-2-naphthol-4-sulfonic Acid 98% Purity CAS 116-63-2 High Purity Naphthol Sulfonic Acid Building Block for Dye Synthesis, Pharmaceutical Researc
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1-Amino-2-naphthol-4-sulfonic Acid 98% Purity CAS 116-63-2 High Purity Naphthol Sulfonic Acid Building Block for Dye Synthesis, Pharmaceutical Researc

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Unit Price:

$30-35/G FOB

Get Latest Price
CAS No.:

116-63-2

Grade:

Reagent Grade

Content:

99%

Port:

qingdao

Brand:

//

Packaging:

5g/bottle, 25g/bottle, 100g/bottle, 500g/bottle

Price valid (until):

2026-09-11

Company Type:
Trader
Location:
China
Qualification:
Main Products:

3-(1-Naphthoyl)indole

  • Product Description

  • Seller Information

  • Inquiry History

  • Description

    —— Product Specifications ——

    Shop 1-Amino-2-naphthol-4-sulfonic Acid 98% Purity CAS 116-63-2 High Purity Naphthol Sulfonic Acid Building Block for Dye Synthesis, Pharmaceutical Researc-Detailed Image 1

    —— Product Detail ——


    Product Overview

    1-Amino-2-naphthol-4-sulfonic acid is a naphthol sulfonic acid derivative with the molecular formula C₁₀H₉NO₄S and a molecular weight of 239.25 g/mol. This white to light gray crystalline powder is a valuable building block in organic synthesis, featuring a naphthalene core with amino, hydroxyl, and sulfonic acid substituents. The compound is widely used as an intermediate in the synthesis of azo dyes, pigments, and pharmaceuticals. Its combination of amino, hydroxyl, and sulfonic acid groups provides multiple sites for chemical modification and derivatization.

    Synthetic Process

    1-Amino-2-naphthol-4-sulfonic acid is synthesized through the following routes:

    • Sulfonation of 1-amino-2-naphthol: 1-Amino-2-naphthol is sulfonated under controlled conditions to introduce the sulfonic acid group at the 4-position.

    • Purification: The crude product is purified by recrystallization from water or ethanol.

    Mechanism of Action / Application Principles

    • Dye Synthesis: Used as an intermediate in the production of azo dyes and pigments.

    • Pharmaceutical Research: Serves as a building block for the synthesis of pharmaceutical compounds.

    • Organic Synthesis: The amino, hydroxyl, and sulfonic acid groups enable diverse chemical transformations.

    Quality Specifications



    Parameter Specification
    Assay ≥98.0%
    Appearance White to light gray crystalline powder
    Melting Point 290°C (dec.)
    Loss on Drying ≤0.5%
    Residue on Ignition ≤0.1%

    Each batch is accompanied by a Certificate of Analysis (COA).

    Packaging & Storage

    • Research quantities: 5g, 25g HDPE bottles

    • Bulk quantities: 100g, 500g HDPE containers

    Storage conditions: Store in a cool, dry place in tightly sealed containers, protected from light. Under recommended conditions, shelf life is 36 months.


    C ompany Profile ——


     ,

    Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 2

    Jinan Topfull Chemical Co., Ltd. is an international company rooted in China, specializing in the export of chemical products.

    Our company is committed to making every effort to provide ideal chemical products to potential customers worldwide, including but not limited to: organic/inorganic reagents, biological reagents, plant extracts, pharmaceutical intermediates, active pharmaceutical ingredients (APIs), reference standards, reference substances, peptides, and more. Meanwhile, we have established long-term and stable cooperative relationships with university laboratories and off-campus research institutions, enabling us to offer tailored product services based on customers' actual needs.

    We currently support customized services for most product categories, with supply quantities ranging from milligram (mg), gram (g) to kilogram (kg) levels, as well as wholesale. Product purity covers the full spectrum from 90% to 99.9%, providing customers with one-stop convenient services.

    To date, our products have been exported to developed countries such as the United States, Australia, Canada, Mexico, as well as EU member states including France, Germany, and many other countries and regions such as Nigeria, Ghana, Southeast Asia, and other parts of Asia. Our product quality and services have consistently received high praise.

    Looking ahead, our company will continue to serve as a bridge connecting China and the world, delivering high-quality products and services to global customers.

     

    Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 3

    Shop Amberlite IR-120 Cation Exchange Resin Sodium Form CAS 9002-23-7 High Purity Strong Acid Cation Exchange Resin for Water Softening, Demineralization,-Detailed Image 4 

    —— Q&A ——

    Q1: How to confirm the product quality before placing orders?
    A: By sending you available samples. Or if you have special requirements for the goods, we can prepare samples according to your requirements for confirmation.

    Q2: Can you supply free samples?
    A: Yes, we can provide a free sample, but the shipping cost will be paid by the customers. You can either pay the shipping cost or arrange a courier to collect the samples.

    Q3: How do you treat quality complaints?
    A: All our products are strictly tested by our QC and confirmed by QA; unqualified material will not be released to customers. If any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.

    Q4: What is your MOQ? Is there a discount?
    A: For highvalue products, our MOQ starts from 1g and generally starts from 10g. For other lowprice products, our MOQ starts from 100g and 1kg.
    Q: Is there a discount?
    A: Yes, for larger quantities, we always support with better prices.

    Q5: How to start orders or make payments?
    A: You can send us your Purchase Order (if your company has one), or just send a simple confirmation by email or via Trade Manager. We will then send you a Proforma Invoice with our bank details for your confirmation, and you can make payment accordingly. If you have other preferred payment methods, we are open to discussion and negotiation.



    4-amino-3-hydroxynaphthalene-1-sulfonic acid is a naphthalenesulfonic acid and an aminonaphthalene. It has a role as a mutagen. It derives from a 2-naphthol.

    Certificates
    • 1-Amino-2-naphthol-4-sulfonic Acid 98% Purity CAS 116-63-2 High Purity Naphthol Sulfonic Acid Building Block for Dye Synthesis, Pharmaceutical Researc Certificates 1 TDS

    Basic Info
    Product Name:

    1-Amino-2-naphthol-4-sulfonic acid

    Other Name:

    1-Naphthalenesulfonic acid,4-amino-3-hydroxy-;2-Naphthol-4-sulfonic acid,1-amino-;4-Amino-3-hydroxy-1-naphthalenesulfonic acid;4-Amino-3-naphthol-1-sulfonic acid;1-Amino-2-hydroxy-4-sulfonaphthalene;1-Amino-2-hydroxy-4-naphthalenesulfonic acid;1-Amino-2-naphthol-4-sulfonic acid;1-Amino-4-sulfo-2-naphthol;2-Hydroxy-4-sulfo-1-naphthylamine;1,2,4-Acid;1-Amino-2-naphthol-4-sulfonate;3-Hydroxy-4-amino-1-naphthalenesulfonic acid;NSC 25061;NSC 4986

    CAS No.:

    116-63-2

    Molecular Formula:

    C10H9NO4S

    InChIKeys:

    InChIKey=RXCMFQDTWCCLBL-UHFFFAOYSA-N

    Molecular Weight:

    239.25

    Exact Mass:

    239.25

    BRN:

    2697469

    EC Number:

    204-147-3

    UNII:

    W46SK3P33G

    NSC Number:

    25061|4986

    DSSTox ID:

    DTXSID7059434

    HScode:

    29222100

    Characteristics
    PSA:

    109

    XLogP3:

    -0.92

    Appearance:

    White to light pink Powder

    Density:

    1.6±0.1 g/cm3

    Melting Point:

    290 °C (dec.)(lit.)

    Boiling Point:

    466ºC

    Refractive Index:

    1.748

    Water Solubility:

    H2O: insoluble

    Storage Conditions:

    Store below +30°C.

    Hazard Identification

    Classification of the substance or mixture

    Not classified.

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Warning

    Hazard statement(s)

    H315 Causes skin irritation

    H319 Causes serious eye irritation

    H335 May cause respiratory irritation

    Precautionary statement(s)
    Prevention

    none

    Response

    none

    Storage

    none

    Disposal

    none

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    3-(1-Naphthoyl)indole

    Location:

    RONGSHENG BEIYUANDAJIE 9, LICHENG DISTRICT,JINAN, SHANDONG CHINA

    Year of Establishment:

    2022

    Jinan Topfull Chemical Co., Ltd. is a global chemical Industrial and focuses on advanced chemical technology. Specialized in Cosmetic materials, water treatment, fine chemicals and so on. We are looking forward to working together with the people of all circles at home and abroad to seek common development!
  • Inquiry History
    1 Inquiries
    Country Product Purchase Quantity Date Posted
    Zambia

    1-Amino-2-naphthol-4-sulfonic acid

    2 PCS Feb 26, 2026
    Post an enquiry for this product
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