Hydrazine, 1-ethyl-1-methyl, also known as 1,1-dimethylhydrazine or unsymmetrical dimethylhydrazine (UDMH), is an organic compound with the chemical formula C2H8N2. It is a colorless, toxic, and highly flammable liquid with a strong, fishy odor. UDMH is widely used as a rocket propellant due to its high energy density and low freezing point, making it suitable for cryogenic applications. It is also employed as a fuel in certain types of rocket engines and as a precursor in the synthesis of other chemicals. However, its use is strictly regulated due to its potential health risks, including carcinogenicity and acute toxicity, as well as its environmental impact.
The CAS Registry Mumber 4986-48-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,8 and 6 respectively; the second part has 2 digits, 4 and 8 respectively. Calculate Digit Verification of CAS Registry Number 4986-48: (6*4)+(5*9)+(4*8)+(3*6)+(2*4)+(1*8)=135 135 % 10 = 5 So 4986-48-5 is a valid CAS Registry Number.