Best 2-Methyl-5-Nitrobenzenesulfonic Acid CAS 121-03-9

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2-Methyl-5-Nitrobenzenesulfonic Acid

Products Description

Name: 2-Methyl-5-Nitrobenzenesulfonic Acid

Cas: 121-03-9

Purity: 99%min


Basic Info:







Stock Availability

In stock

Brand Name

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Product Introduction:

4-Shorttoluene-2-sulfonic acid white crystals.

2-Methyl-5-Nitrobenzenesulfonic Acid is soluble in ethanol, ether, and chloroform, but hardly soluble in water, ethanol, and ether.

4-Nitrotoluene-2-sulfonic acid self-condensation dyes can be divided into dyes with colors ranging from yellow to red according to the degree of polycondensation.

Among them, the most widely used direct yellow 11 dye is a strong yellow dye, especially suitable for dyeing fibers and leather.

Product Nature:

  • Density: 1.547g/cm3
  • Boiling point: 500ºC
  • Melting point: 135°C
  • Refractive index: 1.596


Product Name2-Methyl-5-Nitrobenzenesulfonic Acid
CAS No.121-03-9
Appearance White crystalline powder
Content99% min
Shelf Life2 years
Packing1kg/bag,25kg/bag or as your requirements

Product function:

  • 2-Methyl-5-Nitrobenzenesulfonic Acid is often used as an intermediate for stilbene series direct dyes.
  • This product is a fluorescent whitening agent and dye intermediate.
  • 2-Methyl-5-Nitrobenzenesulfonic Acid is a dye intermediate that can be used to produce yellow R.
  • Using the lithium salt of 2-Methyl-5-Nitrobenzenesulfonic Acid as a raw material, condensation is carried out in the presence of lithium hydroxide to obtain a highly concentrated, water-soluble paste dye.



Pre-Sales Service

* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.

* The sample supports testing and inspection.

* Each batch of products will be tested to ensure that its quality meets user needs.

*Packaging can also be made according to customer requirements.

*Any inquiries will be answered by our relevant personnel within 24 hours.

*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.


After-Sales Service

*We will monitor the logistics information in real time and will share the information with you.

* You can consult us at any time if you have any questions about the product, and we will answer you in time.

*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.


1. ≤50kg, we recommend express delivery, usually called DDU service;

2. ≤500kg, air transportation is generally recommended, usually called FOB, CFR or CIF service;

3.>500kg, sea freight is generally recommended, usually called FOB, CFR or CIF service;

4. For high-value products, please choose air and express to ensure the safety of the products.


Do you accept sample order?

We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.

How to confirm whether the product quality meets our needs before placing an order?

You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.

What’s your MOQ?

Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.

Learn more about us

Contact us for the latest quotation and free samples of 2-Methyl-5-Nitrobenzenesulfonic Acid Powder

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Packaging and shipping

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2-Methyl-5-Nitrobenzenesulfonic Acid