648928-46-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 648928-46-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,8,9,2 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 648928-46:
(8*6)+(7*4)+(6*8)+(5*9)+(4*2)+(3*8)+(2*4)+(1*6)=215
215 % 10 = 5
So 648928-46-5 is a valid CAS Registry Number.
648928-46-5Relevant articles and documents
Synthesis of spiro[pyrrolidine or piperidine-3,9′-xanthenes] by anionic cycloacylation of carbamates
Quintás, Domingo,García, Alberto,Domínguez, Domingo
, p. 9291 - 9294 (2007/10/03)
Xanthene spiropyrrolidines and spiropiperidines were synthesized by a process in which the key step was intramolecular trapping of a xanthen-9-yl anion by a carbamate side-chain situated at the same position.
