In today's market, the longevity and aesthetic appeal of plastic products are paramount, especially for items intended for outdoor use or prolonged exposure to sunlight. Ultraviolet (UV) radiation can cause significant degradation, leading to discoloration, brittleness, and loss of structural integrity. To combat this, manufacturers incorporate UV stabilizers into their formulations. Among the most effective and widely utilized is 5-Methyl-1H-Benzotriazole (CAS 136-85-6), a high-purity compound that acts as a crucial photostabilizer.
The Threat of UV Degradation to Plastics
UV radiation, a component of sunlight, possesses enough energy to break chemical bonds within polymer chains. This process, known as photodegradation, can initiate a cascade of negative effects. For plastic products, this often means a yellowing or fading of color, a chalky surface appearance, and a loss of mechanical properties like tensile strength and impact resistance. This is particularly problematic for automotive parts, outdoor furniture, construction materials, and packaging.
Why 5-Methyl-1H-Benzotriazole is the Preferred UV Stabilizer
5-Methyl-1H-Benzotriazole, available as a fine white powder with a CAS number of 136-85-6, functions by absorbing harmful UV radiation and dissipating it as harmless heat. This mechanism effectively shields the polymer matrix from photodamage. Its efficacy, combined with good solubility in many organic solvents and compatibility with various polymer systems, makes it an ideal choice for formulators. As a leading 5-methylbenzotriazole supplier in China, we provide this essential additive to manufacturers globally, ensuring they can buy 5-methyl-1h-benzotriazole of the highest quality.
Applications Where 5-Methyl-1H-Benzotriazole Excels
The utility of this compound extends across numerous plastic applications:
For purchasing managers, understanding the 5-methylbenzotriazole price from a reliable manufacturer is crucial for cost-effective production. We are a premier supplier in China committed to delivering consistent quality and competitive pricing, making it easier for you to source this vital additive. The high purity (99%) of our product ensures predictable and effective performance in your formulations.
Partnering for Enhanced Durability
By choosing 5-Methyl-1H-Benzotriazole, you are selecting a proven solution for combating UV degradation. Our role as a dedicated manufacturer and supplier means we are invested in your success, providing not only a superior product but also the technical support you may need. Enhance the lifespan, appearance, and performance of your plastic products by incorporating this advanced UV stabilizer. Contact us today to get a quote for bulk purchase and secure a stable supply chain for your manufacturing needs.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.