143593-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143593-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,9 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143593-53:
(8*1)+(7*4)+(6*3)+(5*5)+(4*9)+(3*3)+(2*5)+(1*3)=137
137 % 10 = 7
So 143593-53-7 is a valid CAS Registry Number.
143593-53-7Relevant academic research and scientific papers
Preparation of 3,4,5-Trisubstituted 1,2,4-Oxadiazolium Salts from Nitrilium Salts
Abu-El-Halawa, Rajab,Shrestha-Dawadi, Prativa Bade,Jochims, Johannes C.
, p. 109 - 116 (2007/10/02)
1,3-Cycloadditions of stable nitrile oxides 2 to nitrilium salts 1 afford high yields of 3,4,5-trisubstituted 1,2,4-oxadiazolium salts 3.N-Hydroxycarboximidoyl chlorides 4 add to nitrilium salts 1 to give isolable amm
