N,N'-bis-(2,5-dimethyl-phenyl)-guanidine, also known as bis(2,5-dimethylphenyl)guanidine or DMPG, is an organic compound with the chemical formula C15H20N4. It is a white crystalline solid that is soluble in organic solvents. DMPG is commonly used as a curing agent for epoxy resins, enhancing their mechanical properties and thermal stability. It is also employed as a corrosion inhibitor in various industrial applications, particularly in the oil and gas industry, to protect metal surfaces from corrosion. Additionally, it has been studied for its potential use in pharmaceuticals and as a chemical intermediate in the synthesis of other compounds. The compound is known for its high reactivity and is handled with care due to its potential irritant properties.
The CAS Registry Mumber 136-05-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,3 and 6 respectively; the second part has 2 digits, 0 and 5 respectively. Calculate Digit Verification of CAS Registry Number 136-05: (5*1)+(4*3)+(3*6)+(2*0)+(1*5)=40 40 % 10 = 0 So 136-05-0 is a valid CAS Registry Number.