58137-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58137-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,1,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 58137-40:
(7*5)+(6*8)+(5*1)+(4*3)+(3*7)+(2*4)+(1*0)=129
129 % 10 = 9
So 58137-40-9 is a valid CAS Registry Number.
58137-40-9Relevant academic research and scientific papers
Synthesis of Simple Monocyclic 1,3-Diazepines from 1,2-Diazepines
Tsuchiya, Takashi,Kurita, Jyoji,Kojima, Hirokazu
, p. 444 - 445 (2007/10/02)
Thermolysis of the 1H-1,2-diazepines having an electron-donating substituent in the 4- or 6-position affords the corresponding 1,3-diazepines, whereas 1,2-diazepines having electron-withdrawing substituents do not show this ring-conversion.
