2r,5t-dibromo-1,1-dimethyl-2,5c-diphenyl-silolane is a complex organic compound that belongs to the class of silanes, which are derivatives of silicon hydrides. This specific compound features a silicon atom at its core, bonded to two methyl groups (CH3) and two phenyl groups (C6H5). The molecule also contains two bromine atoms (Br) attached to the carbon atoms at the 2 and 5 positions of the phenyl rings, with the 2 position being in the "r" (referring to the "right" or "re" face) and the 5 position in the "t" (referring to the "top" or "cis" face). This arrangement of substituents gives the compound its unique stereochemistry. The compound is of interest in organic synthesis and materials science, particularly in the development of new silicon-containing materials and as intermediates in the synthesis of more complex organic molecules.
The CAS Registry Mumber 7641-43-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,4 and 1 respectively; the second part has 2 digits, 4 and 3 respectively. Calculate Digit Verification of CAS Registry Number 7641-43: (6*7)+(5*6)+(4*4)+(3*1)+(2*4)+(1*3)=102 102 % 10 = 2 So 7641-43-2 is a valid CAS Registry Number.