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1,2,3 Benzotriazole (BTA)

Structure Formula
Formula C6H5N3
CAS No. 95-14-7
EC No. 202-394-1
Synonyms 1-H Benzotriazole; 1,2,3-Benzotriazole; Azimidobenzene; Benzisotriazole; benzene azimide; 1,2,3-triaza-1H-indene; aziminobenzene; 1,2-aminoazophenylene; 2,3-diazaindole; 1,2,3-triazaindene;


1,2,3-Benzotriazole (BTA) is well-known and shows versatile programs in distinct industries. Primarily recognized as an effective corrosion inhibitor, it safeguards metals, especially copper and its alloys, in packages that include cooling systems and metalworking fluids, thereby improving device durability. Additionally, BTA serves as a vital antioxidant and defensive metal from oxidative degradation. In polymer chemistry, it acts as a UV absorber, extending the lifespan of substances exposed to ultraviolet radiation.


Benzotriazole has different applications in major industries. For example, applied to rust prevention, antifreeze, oil antioxidant (various lubricants, hydraulic oil, brake oil, transformer oil), Emulsifiers, water quality stabilizers, anti-UV or anti-static additives for polyamide, polyester and other polymer materials, photographic anti-fogging agent, emulsion mordant, PVC foaming inhibitor, analytical reagent, plant growth regulator, copper flotation agent and metal corrosion inhibitor.


Features: 1,2,3 Benzotriazole (BTA)

Corrosion Inhibitor:

One of the significant applications of BTA is as a corrosion inhibitor. It is usually used to defend metals, particularly copper and its alloys, from corrosion in numerous commercial procedures, including in cooling systems and metalworking fluids.


BTA additionally has well-known antioxidant properties and is used to protect metals and metallic surfaces against oxidative degradation. This is mainly useful in programs wherein metals are exposed to environmental conditions that might cause corrosion.

UV Absorber:

In the polymer chemistry sector,1,2,3 Benzotriazole is utilized as a UV absorber or stabilizer. It helps save you from the degradation of polymers as a result of exposure to ultraviolet (UV) radiation, extending the lifespan of the substances as a consequence.

Photographic Chemical:

BTA has been used in the photographic industry as a restrainer and fog suppressant in the development system. It facilitates the manipulation of the formation of unwanted historical past fog in photographic emulsions.

Copper Plating Additive:

In electroplating methods, 1,2,3 Benzotriazole are hired as an additive to decorate the fines of copper-plated surfaces. It paperwork a defensive layer on the steel, stopping unwanted side reactions at some stage in the plating procedure.

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Shelf Life

Under proper storage conditions, the shelf life is 24 months.

Health & Safety

For more details and safety recommendations regarding the use of the product, please consult our Material Safety Data Sheet (MSDS), or Contact With our Product Manager.


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