Chinese Manufacturer of Dye Intermediate Benzenesulfonyl Chloride (BSC) From Huashihang

• Customization: Available
• Type: Synthesis Material Intermediates
• Appearance: Liquid
• Model NO.: HSH98099
• Quality: Refined
• Colour: Colorless
• Category: Cross-Lingking Agent
• Use 1: Synthesis of Sulfonamides
• Use 2: Anti-Corrosion
• Use 3: Dye Intermediate
• Assay: 75.0%
• Transport Package: 200kg/Drum
• Specification: 75.0%min
• Trademark: Huashihang
• Origin: China
• Production Capacity: 1000mt

Product Description

 

Product Description

Benzenesulfonyl chloride(BSC) is a very important intermediate in the chemical and pharmaceutical industries. As mentioned above, it is used for the synthesis of sulfonamides, which have applications as antibiotics and other pharmaceuticals. It is also used in the production of dyes, pigments, and various organic compounds through its reactive sulfonyl chloride group.

Overview
Product name : Benzenesulfonyl chloride
Molecular Formula : C6H5ClO2S
EINECS NO. : 202-636-6
 

 

Properties

 

Item	Specification
Appearance	colorless transparent oily liquid
Assay	≥75%
Diphenyl sulfone content	≤25%
Moisture	≤3%

 

 

Packaging & Shipping

200kg/drum

Use

1. Synthesis of Sulfonamides
   1. Benzenesulfonyl chloride is a crucial reagent for the synthesis of sulfonamides. It reacts with amines to form sulfonamide bonds. For example, when it reacts with aniline, it forms N - phenylbenzenesulfonamide. The reaction mechanism involves the nucleophilic attack of the amine's nitrogen atom on the sulfur atom of the sulfonyl chloride, followed by the elimination of a chloride ion. This type of reaction is widely used in the pharmaceutical industry to synthesize drugs such as sulfonamide antibiotics.
2. Protection of Amino Groups
   1. In organic synthesis, it can be used to protect amino groups. Amino groups are highly reactive and can participate in unwanted reactions. By reacting an amino group with benzenesulfonyl chloride to form a sulfonamide, the reactivity of the amino group can be reduced. Later, the sulfonamide group can be removed under specific reaction conditions to regenerate the original amino group. This strategy is useful in the synthesis of complex organic molecules such as peptides and alkaloids.
3. Dye and Pigment Industry
   1. Benzenesulfonyl chloride is used in the production of dyes and pigments. It can react with various aromatic compounds to introduce sulfonyl groups, which can modify the color and solubility properties of the resulting dyes. The sulfonyl group can also enhance the lightfastness and stability of the dyes. For example, in the synthesis of acid dyes, the introduction of a sulfonyl group can improve the dye's affinity for protein - based fibers like wool and silk.
4. Polymer Chemistry
   1. It can be used to modify polymers. By reacting with polymers that have amino or hydroxyl groups, it can introduce sulfonyl chloride or sulfonamide groups onto the polymer chains. This modification can change the physical and chemical properties of the polymers. For example, it can improve the polymer's resistance to heat, chemicals, or moisture. The modified polymers can have applications in coatings, adhesives, and high - performance materials.

Company Profile

Huashihang Chemical Group is China leading chemical company.

Jinan Huashihang Chemical Co., Ltd is its sales company with import and export authority. The company was founded in 2004, located in Jinan City, Shandong, China. It started from a small village collective factory, but has now developed into a large private enterprise group with a complete industrial chain.

Being focused on the research, development, production, trade and service of chemicals, Hushihang chemical is a specialized manufacturer and supplier of fine chemicals, cosmetic materials, daily chemicals and food additives.

The company has established a documented system consisting of manual, procedures and instructions, based on the requirements of ISO 9001:2008. The quality policy has been established, understood and maintained. Products are inspected to ensure their suitability to the requirements, and released for delivery only after checking the fulfillment of all specified requirements.

Our Plant

 

 

Certifications

 

 

 

 

 

 

FAQ

Q1: Could you offer sample?
A1: Yes,sample is available. We can send samples by couriers or air as client's requirements.

Q2: What is MOQ?
A2: It usually does not have MOQ requirement. We will offer the most cost-effective solution including price and delivery way according to purchasing quantities.

Q3: What is the delivery time?
A3: For non-hazardous,it usually has stock. It can be sent within 7 days. For hazardous chemical,it may be 1~2 weeks. If it is our regular product, the time will be earlier.

Q4: Can you provide relevant documents?
A4: Of course. Bill of loading,Commercial Invoice, Packing List, Origin of Certificate , insurance, COA and SDS are available. Besides, we can offer other documents Certificate of Fumigation, documents approved by CCPIT or Consulate,etc.

Q5: Do you accept third party inspection?
A5: Yes,we do.

Q6: What is your payment term?
A6: TT,LC,Paypal,Western Union, ACH wire are available.

Q7: Is DDU or DDP available?
A7: Yes.

Q8: Could you look for other products on China market and coload one container?
A8: Yes. We have warehouse support to accomplish this.