1H-Phosphole, 2,5-dihydro-1-(phenylmethyl)-, also known as 1-benzyl-2,5-dihydro-1H-phosphole, is an organophosphorus compound characterized by a phosphole ring system. This heterocyclic compound features a phosphorus atom in the ring, which is bonded to two carbon atoms and one hydrogen atom, with a benzyl group attached to the phosphorus. The 2,5-dihydro prefix indicates that there are two hydrogen atoms attached to the ring, making it a partially saturated derivative of the parent phosphole structure. 1H-Phosphole, 2,5-dihydro-1-(phenylmethyl)- is of interest in organic chemistry and materials science due to its unique electronic properties and potential applications in the synthesis of more complex molecules and materials.
The CAS Registry Mumber 28278-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,7 and 8 respectively; the second part has 2 digits, 5 and 3 respectively. Calculate Digit Verification of CAS Registry Number 28278-53: (7*2)+(6*8)+(5*2)+(4*7)+(3*8)+(2*5)+(1*3)=137 137 % 10 = 7 So 28278-53-7 is a valid CAS Registry Number.