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22027-76-5

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22027-76-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22027-76-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,0,2 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 22027-76:
(7*2)+(6*2)+(5*0)+(4*2)+(3*7)+(2*7)+(1*6)=75
75 % 10 = 5
So 22027-76-5 is a valid CAS Registry Number.

22027-76-5Relevant articles and documents

Efficient Conversions of Carboxylic Acids into O-Alkyl, N-Alkyl and O,N-Dialkylhydroxamic Acids

Katritzky, Alan R.,Kirichenko, Nataliya,Rogovoy, Boris V.

, p. 2777 - 2780 (2003)

Carboxylic acids were conveniently converted into unsubstituted, N-alkyl-, O-alkyl-, and O,N-dialkylhydroxamic acids via acylbenzotriazole intermediates. The ready availability of the reagents, mild conditions, and easy handling of the intermediates are advantageous.

Convenient preparation of O-alkylhydroxamic acids using 2-acylpyridazin-3(2H)-ones

Kim, Jeum-Jong,Park, Young-Dae,Kim, Ho-Kyun,Cho, Su-Dong,Kim, Ju-Kyeong,Lee, Sang-Gyeong,Yoon, Yong-Jin

, p. 731 - 738 (2007/10/03)

Treatment of O-alkylhydroxylamine hydrochlorides with 2-acyl-4,5- dichloropyridazin-3(2H)-ones in the presence of triethylamine or Amberlite IRA-67 in acetonitrile gave corresponding O-alkylhydroxamic acid derivatives in excellent yields. This is an effic

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