Regular Soldering Flux Paste, · 2,6-Di-tert-butyl-4-methylphenol (CAS-No.) 128-37-0 - STOT RE 2, H373 Aquatic Acute 1, H400 Aquatic Chronic 1, H410 *Chemical name, CAS number and/or exact concentration have been withheld as a trade secret Full text of hazard classes and HSAFETY DATA SHEET FP, · 2,6-Di-tert-butyl-4-methylphenol Long-term exposure limit (8-hour TWA): ACGIH 2 mg/m³ inhalable fraction and vapor A4 diphenylamine Long-term exposure limit (8-hour TWA): ACGIH 10 mg/m³ A4 ACGIH = American Conference of Governmental Industrial2,6, · Of particular note is methyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate (CAS# 6386-38-5), which is formed by the Michael addition of methyl methacrylate. This compound is used as a feedstock in the synthesis of more complex antioxidants such as Irganox 1098 . 2,6-Di- tert -butylphenol is also used in the synthesis of CGP-7930 , probucol , and nicanartine .
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