221652-75-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221652-75-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,5 and 2 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 221652-75:
(8*2)+(7*2)+(6*1)+(5*6)+(4*5)+(3*2)+(2*7)+(1*5)=111
111 % 10 = 1
So 221652-75-1 is a valid CAS Registry Number.
221652-75-1Relevant academic research and scientific papers
Short and efficient synthesis of new α-oximino esters
Boukhris, Said,Souizi, Abdelaziz,Robert, Albert
, p. 4693 - 4696 (2007/10/03)
α-Cyano α-alkoxy carbonyl epoxides 1 react, in refluxing alcohol, with hydroxylamine hydrochloride 2 in a direct ring opening reaction to give β-alkoxy α-oximino esters 4 in good yields. We have shown that this reaction proceeds through the formation of c
