"5,6,6a-triphenyl-3,3a,6,6a-tetrahydro-phospholo[2,3-c]pyrazole 6-oxide" is a complex organic compound with a unique structure. It features a phosphorus atom at its core, which is bonded to a pyrazole ring system. The pyrazole ring is a five-membered aromatic ring containing two nitrogen atoms, and in this case, it is fused to a phospholane ring, which is a three-membered ring with one phosphorus and two carbon atoms. The compound is further characterized by the presence of three phenyl groups attached to the carbon atoms at positions 5, 6, and 6a, and a hydroxy group (-OH) at the 6-oxide position, indicating the presence of an oxygen atom bonded to the nitrogen in the pyrazole ring. This molecule is of interest in the field of organophosphorus chemistry due to its potential applications in various chemical reactions and as a ligand in coordination chemistry.
The CAS Registry Mumber 1641-64-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,4 and 1 respectively; the second part has 2 digits, 6 and 4 respectively. Calculate Digit Verification of CAS Registry Number 1641-64: (6*1)+(5*6)+(4*4)+(3*1)+(2*6)+(1*4)=71 71 % 10 = 1 So 1641-64-1 is a valid CAS Registry Number.