The chemical "3a,4,5,6,7,7a-hexahydro-1-(trimethylsilyl)-4,7-methano-1H-benzotriazole" is a complex organic compound with the molecular formula C10H19N3Si. It is a derivative of benzotriazole, a heterocyclic aromatic compound, and features a trimethylsilyl group attached to the nitrogen atom. 3a,4,5,6,7,7a-hexahydro-1-(trimethylsilyl)-4,7-methano-1H-benzotriazole is characterized by its hexahydro structure, which means it contains six hydrogen atoms bonded to carbon atoms in a cyclic structure. The presence of the trimethylsilyl group and the methano bridge between the 4 and 7 positions of the benzotriazole core gives 3a,4,5,6,7,7a-hexahydro-1-(trimethylsilyl)-4,7-methano-1H-benzotriazole unique chemical properties. It is often used in chemical synthesis and as a reagent in various organic reactions due to its stability and reactivity.
The CAS Registry Mumber 17843-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,4 and 3 respectively; the second part has 2 digits, 0 and 9 respectively. Calculate Digit Verification of CAS Registry Number 17843-09: (7*1)+(6*7)+(5*8)+(4*4)+(3*3)+(2*0)+(1*9)=123 123 % 10 = 3 So 17843-09-3 is a valid CAS Registry Number.