2, 5-Bis (5-tert-butyl-2-benzoxazolyl) Thiophene UV Absorber / Optical Brightener Ob CAS 7128-64-5

• Customization: Available
• Type: Food Additives
• Appearance: Powder
• Model NO.: yh-ygzbj
• Grade Standard: Reagent Grade
• Purity: 99%
• Environmental Protection: Yes
• Freight1: Small Quantity Logistics or Air Transport
• Freight2: Pick up
• Freight3: Ocean Freight
• Free Sample: Available
• Belong: Yuhan Chem
• Lead Time: Within 7 Days
• Storagemethod: Sealed Container
• Packaging: Sealed Packaging
• Odor: Odorless
• MOQ: 5g or Smallest Bottle
• Port1: Chongqing
• Storage2: Cool Dry Place
• Stability: Excellent
• Transport Package: Sealed and Refrigerated
• Specification: Customization
• Trademark: Customizable
• Origin: China
• HS Code: 3909490090
• Production Capacity: 500000t/Year

Product Description

 

Product Parameters

 

Property	Details
Chemical Name	UV Absorber / Optical Brightener OB
CAS Number	7128 - 64 - 5
Chemical Structure	2,5 - bis(5 - tert - butyl - 2 - benzoxazolyl) thiophene
Molecular Formula	C26H26N2O2S
Molecular Weight	430.56
Appearance	Yellow - green powder
Melting Point	196 - 203 °C
Solubility	Insoluble in water. Soluble in organic solvents such as chloroform, benzene, toluene, and xylene.
Fluorescence Characteristics	Shows strong blue - violet fluorescence under ultraviolet light.
Stability	Stable under normal conditions. May decompose under high - temperature, high - humidity, or strong - light conditions.

 

The uses of UV absorber/optical brightener OB are as follows:

 

• Plastics Industry: It is added to various plastics to improve their whiteness and brightness. It can also enhance the resistance of plastics to ultraviolet light, preventing the degradation and discoloration of plastics caused by ultraviolet radiation. This helps to extend the service life of plastic products and maintain their appearance.
• Textile Industry: Used to treat fabrics, making them appear whiter and more vivid. It can improve the fluorescent effect of fabrics, making them look more attractive. In addition, it can also enhance the resistance of fabrics to ultraviolet light, protecting the fabric fibers from damage.
• Paper Industry: Helps to improve the whiteness and optical properties of paper. It makes the paper look more glossy and smooth, improving the quality and appearance of the paper. It can also increase the resistance of paper to ultraviolet light, preventing the paper from yellowing and deteriorating under sunlight.
• Coating Industry: Added to coatings to improve their whiteness and brightness. It can also enhance the ultraviolet resistance of coatings, preventing the coatings from fading and peeling under ultraviolet radiation, thereby improving the durability and appearance of the coatings

 

 

Detailed Photos

 

Product Description

• Chongqing Yuhan Technology Co., Ltd. -- Bridging High-Quality Chemicals to Global Markets

  About Us
  Since 2017, Chongqing Yuhan Technology has grown from a local supplier to a leading international trader of chemical raw materials and reagents. We serve diverse industries including electric power, metallurgy, agriculture, pharmaceuticals, textiles, plastics, and research institutions, with a global client base.
  Our Business Scope
  We offer a wide range of chemical products, specializing in high-purity acids, perovskite materials, and hazardous chemicals. Our focus on bulk and high-performance materials ensures we meet the unique needs of our clients with customized solutions.
  Our Strengths
• Diverse Product Lines: Comprehensive range of chemicals for one-stop procurement.
• Market Competitiveness: Strong market position with long-term partnerships.
• Looking Forward
  We are committed to continuous improvement, offering more professional and efficient solutions. We aim to expand our international presence and become the preferred partner for high-quality chemical raw materials and reagents globally.
• Industry Reputation: Recognized for professionalism and reliability.
• Risk Control: Effective management of safety and environmental risks.
• Partner Trust: Trusted for securing favorable terms and prices.

 

 

 

Certifications

Packaging & Shipping

 

Our Advantages

 

Company Profile

FAQ

Q1: Can I get some samples?
A: Yes, sure. Usually, we can provide free samples for less than 5 kg, but the customer needs to pay for the shipping.

Q2: What is your MOQ?
A: The minimum order quantity varies for different products, with most requiring a minimum of 1 ton. However, we can accommodate smaller quantities, such as 100kg, with a 100% sample charge.

Q3: How to confirm product quality before placing an order?
A: You can obtain free samples of the products, but you need to cover the shipping fee or arrange for the samples to be sent to us by express. Additionally, you can provide us with your product specifications and requirements, and we will manufacture the products accordingly.

Q4: Is there a discount for bulk purchases? How much is the discount?
A: Yes, we offer discounts for bulk purchases. The discount is determined by evaluating factors such as purchase volume, product type, and cooperation period. Generally, the larger the purchase volume, the greater the discount.

Q5: How do I start paying?
A: Payment can be made by wire transfer, Western Union, PayPal, Visa, Mastercard, T/T, Apple Pay, Google Pay, etc.

Q6: What is the shipping time?
A: We ship the products out within 1-3 days and provide a tracking number. Shipping time varies by country.

Q7: What qualifications and certifications does the company have? Such as ISO certification, etc.
 A: Our supply manufacturers hold several authoritative certifications to ensure our products and services meet international standards and industry regulations. This includes the ISO 9001 Quality Management System certification, which indicates we have reached internationally recognized levels in product quality control, production process management, and continuous improvement, providing stable and reliable quality assurance for customers.

Q8: How about the after-sale service of products?
A: After purchasing products from our company, you will be supported by our professional technical team and after-sales team, who will help solve any problems you may encounter.