(Sa)-6.6'-dichloro-2.2'-dimethyl-N,N'-dibenzylidene-benzidine is a complex organic compound with the molecular formula C27H24Cl2N2. It is a derivative of benzidine, featuring two chlorine atoms at the 6 and 6' positions, two methyl groups at the 2 and 2' positions, and a dibenzylidene bridge connecting the two benzidine units. (Sa)-6.6'-dichloro-2.2'-dimethyl-N.N'-dibenzylidene-benzidine is known for its potential applications in the synthesis of dyes and pigments, as well as in the production of certain types of polymers. Due to the presence of chlorine and the aromatic structure, it may exhibit specific chemical properties, such as reactivity with nucleophiles or electrophilic substitution. However, it is important to note that benzidine and its derivatives are often associated with health and environmental concerns due to their potential carcinogenicity, and thus, their use is regulated in many countries.
The CAS Registry Mumber 3685-18-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,6,8 and 5 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 3685-18: (6*3)+(5*6)+(4*8)+(3*5)+(2*1)+(1*8)=105 105 % 10 = 5 So 3685-18-5 is a valid CAS Registry Number.