743-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 743-99-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 743-99:
(5*7)+(4*4)+(3*3)+(2*9)+(1*9)=87
87 % 10 = 7
So 743-99-7 is a valid CAS Registry Number.
743-99-7Relevant academic research and scientific papers
Ring Cleavage of 1,2,3-Triazolium Ions with Nucleophiles
Moderhack, Dietrich
, p. 1271 - 1274 (2007/10/02)
The 1,2,3-triazolium salts 1 react with a variety of nucleophiles to give products of ring scission like 2-5.The new 1,2,3-triazolium reaction most probably does not follow the pattern known in the case of isoxazolium and furazanium salts.
