53133-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53133-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,1,3 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 53133-97:
(7*5)+(6*3)+(5*1)+(4*3)+(3*3)+(2*9)+(1*7)=104
104 % 10 = 4
So 53133-97-4 is a valid CAS Registry Number.
53133-97-4Relevant academic research and scientific papers
A study on the friedel-crafts type reaction of ninhydrin with arenes
Song, Hyun Nam,Seong, Mi Ra,Son, Ji Suk,Kim, Jae Nyoung
, p. 1865 - 1870 (2007/10/03)
The reactions of ninhydrin (1, 1,2,3-indantrione) with arenes in the presence of concentrated sulfuric acid afforded mono- or di-substituted ninhydrin derivatives at the 2-position in reasonable yields.
