Cas 29385 43 1 is a key solution in the chemical industry, specifically within fine chemicals and Metal preservatives. This article explores how Hebei Tenger Chemical Technology Co., Ltd. supports professionals with durable, high-performance products, and explains why this product is an ideal choice for businesses in these sectors.

Cas 29385 43 1 is widely known as Tolyltriazole (TTA), the methyl-substituted analog of benzotriazole used to passivate copper and copper alloys. As a fine chemical with the molecular formula C7H7N3 (commonly written as c7h7n3), it is typically a mixture of 4- and 5-methyl-1H-benzotriazole isomers. The compound forms a tightly adherent, hydrophobic protective film on yellow metals, delivering long-lasting corrosion inhibition in both aqueous and non-aqueous environments. Synonyms include methyl benzotriazole and methyl-1H-benzotriazole, reflecting its role across multiple formulations and industries from water treatment to lubricants.
From a technical standpoint, TTA offers excellent thermal stability, reliable performance over a broad pH range, and strong compatibility with common inhibitor packages (nitrite, molybdate, phosphate, and carboxylates). In practice, it is supplied as powder, granules, or as sodium tolyltriazolate solutions for water-based systems, enabling fast dissolution and simplified dosing. Typical quality parameters emphasize high assay, low moisture, and low ash, supporting consistent performance in demanding operations such as closed cooling systems, heat exchangers, and metalworking lines. Hebei Tenger Chemical Technology Co., Ltd. manufactures and supplies Cas 29385 43 1 with stringent quality control and reliable global logistics, providing B2B buyers with the technical documentation, COA/SDS support, and responsive service needed to deploy TTA at scale.
In Metal preservatives, Cas 29385 43 1 (TTA) is a go-to additive for copper, brass, and bronze protection in environments ranging from circulating cooling water to automotive and industrial heat-transfer fluids. In closed-loop HVAC systems and data center cooling, low treat rates help mitigate copper ion release and reduce under-deposit corrosion, stabilizing heat-transfer efficiency. In automotive coolants and antifreeze, TTA complements organic acid technology, helping maintain long-term corrosion control of radiators and brazed aluminum components containing copper alloys. In metalworking fluids and cleaners, it preserves surface appearance by limiting tarnish and staining during machining and storage. TTA is also used in vapor-phase and contact corrosion inhibitor (VCI) formulations, lubricants, and hydraulic oils.
For B2B decision makers, total cost of ownership is driven by dosage efficiency, asset life extension, and process reliability. Cas 29385 43 1 delivers value through low treat rates and durable film formation, which translates into fewer corrosion-related interventions, less unscheduled downtime, and better heat-transfer performance. Many operators in fine chemicals and industrial water treatment report reduced discoloration of copper/brass components and improved system cleanliness when TTA is part of the inhibitor package. In coolants and metalworking fluids, it supports longer service intervals by limiting yellow metal attack that can otherwise seed deposits and increase maintenance frequency.
Sustainability is reshaping corrosion inhibition strategies across the chemical industry. Formulators seek high-efficiency inhibitors that perform at low use levels, reduce waste, and integrate with modern, nitrite- and amine-lean programs. In this context, Cas 29385 43 1 (TTA/methyl benzotriazole) remains a cornerstone for protecting copper and copper alloys, supporting durability and resource efficiency. Demand is growing in HVAC retrofits, data center cooling, EV and battery thermal management, and precision manufacturing—segments where asset uptime and energy efficiency are strategic priorities. Concurrently, regulatory expectations emphasize robust stewardship, transparent documentation, and safer handling across the value chain.
Cas 29385 43 1—also known as TTA, methyl-1H-benzotriazole, or methyl benzotriazole—offers proven performance for protecting copper and copper alloys across metal preservatives, coolants, metalworking fluids, and industrial water treatment. Its efficiency at low dosages, formulation flexibility, and robust film persistence help reduce total cost of ownership while boosting system reliability. Hebei Tenger Chemical Technology Co., Ltd. stands out as a dependable partner with consistent quality, technical support, and reliable supply. Contact us: email: yanzhe@tengerchemical.com. Visit our website: https://www.tengerchemical.com
Hebei Tenger Chemical Technology Co., Ltd. focuses on the chemical industry and is committed to the export service of chemical raw materials.