18432-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18432-30-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,3 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 18432-30:
(7*1)+(6*8)+(5*4)+(4*3)+(3*2)+(2*3)+(1*0)=99
99 % 10 = 9
So 18432-30-9 is a valid CAS Registry Number.
InChI:InChI=1/C22H18N2O2/c1-23(2)16-9-7-15(8-10-16)13-21-19-6-4-3-5-18(19)20-12-11-17(24(25)26)14-22(20)21/h3-14H,1-2H3/b21-13-
18432-30-9Relevant articles and documents
KF-Al2O3 induced the condensation of 2-nitrofluorene and para-substituted acetophenones with aromatic aldehydes
Yan,Sun
, p. 3809 - 3814 (2007/10/03)
In the presence of KF-Al2O3 as a solid base, 2-nitrofluorene 1 condensed with aromatic aldehydes 2a-f in methanol to give 2-nitrodibenzofulvenes 3a-f in high yield. The para-substituted acetophenones 4a-f reacted with cinnamic aldehyde to give 1, 5-diaryl-2, 4-pentadien-1-ones 6a-f in moderate yield.
