54459-88-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54459-88-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,5 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 54459-88:
(7*5)+(6*4)+(5*4)+(4*5)+(3*9)+(2*8)+(1*8)=150
150 % 10 = 0
So 54459-88-0 is a valid CAS Registry Number.
54459-88-0Relevant articles and documents
Synthesis of N-confused porphyrin analogues by β-azafulvenone tetramerization
Qiao, Greg GuangHua,Wong, Ming Wah,Wentrup, Curt
, p. 8125 - 8131 (2007/10/03)
β-Azafulvenones 16 and 33 were generated from 14 or 18 and 31 or 37, respectively, and directly observed by IR spectroscopy. These heterocyclic ketenes tetramerize to the macrocycles 20 and 34.