3663-24-9 Usage
General Description
5-Butyl-1H-benzotriazole, also often referred to as BBTA, is a chemical compound used primarily as an inhibitor of corrosion in several industrial applications. It is commonly applied in cooling systems, engines, and other metal-based machinery to protect the metal surfaces from rust and other forms of corrosion. The chemical works by forming a passive layer on the surface of the metal that prevents oxidation. Despite its beneficial properties in industry, 5-butyl-1H-benzotriazole is classified as a hazardous substance due to its potential environmental impact, particularly its toxicity to aquatic life. In addition, exposure to this chemical is known to cause skin irritation and serious eye damage. Therefore, careful handling and proper disposal regulations must be followed when using this chemical.
Check Digit Verification of cas no
The CAS Registry Mumber 3663-24-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,6 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3663-24:
(6*3)+(5*6)+(4*6)+(3*3)+(2*2)+(1*4)=89
89 % 10 = 9
So 3663-24-9 is a valid CAS Registry Number.
3663-24-9Relevant articles and documents
5-n-butyl-1H-benzotriazole synthesis process
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, (2016/12/01)
The present invention discloses a 5-n-butyl-1H-benzotriazole synthesis process, which comprises: adding concentrated sulfuric acid to acetic anhydride in a dropwise manner, and adding 4-n-butyl aniline in a dropwise manner to prepare 4-n-butyl acetanilide; adding a mixed acid solution comprising 65% concentrated nitric acid and acetic anhydride to the 4-n-butyl acetanilide in a dropwise manner to synthesize 4-n-butyl-2-nitro acetanilide; synthesizing 4-n-butyl-2-nitroaniline by using the 4-n-butyl-2-nitro acetanilide, 95% ethanol and 40% sodium hydroxide as raw materials; under the effect of a catalyst, using the 4-n-butyl-2-nitroaniline and dehydrated alcohol and sequentially using nitrogen and hydrogen to convert under a closed condition to prepare 4-n-butyl-o-phenylenediamine; and adding the 4-n-butyl-o-phenylenediamine, water and sodium nitrite to an autoclave to synthesize the 5-n-butyl-1H-benzotriazole. According to the present invention, the process equipment is simple, and the product yield is high.
