N,N'-bis-(4-methyl-thiazol-2-yl)-m-phenylenediamine, also known as MTBP, is an organic compound with the chemical formula C12H12N4S2. It is a yellow crystalline solid that is widely used as an analytical reagent for the determination of copper, cobalt, nickel, and other metal ions. MTBP is also employed as a corrosion inhibitor in various industrial applications, particularly in the oil and gas industry. Its chemical structure consists of a central m-phenylenediamine molecule connected to two 4-methyl-thiazol-2-yl groups, which contribute to its chelating properties and reactivity with metal ions.
The CAS Registry Mumber 4288-20-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,8 and 8 respectively; the second part has 2 digits, 2 and 0 respectively. Calculate Digit Verification of CAS Registry Number 4288-20: (6*4)+(5*2)+(4*8)+(3*8)+(2*2)+(1*0)=94 94 % 10 = 4 So 4288-20-4 is a valid CAS Registry Number.