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91757-32-3

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91757-32-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91757-32-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,5 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91757-32:
(7*9)+(6*1)+(5*7)+(4*5)+(3*7)+(2*3)+(1*2)=153
153 % 10 = 3
So 91757-32-3 is a valid CAS Registry Number.

91757-32-3Relevant articles and documents

Heterocycles from Nitrile Oxides. II. 1,2,4-Oxadiazin-6-ones

Hussein, Ahmad Q.,El-Abadelah, Mustafa M.,Sabri, Wail S.

, p. 455 - 459 (2007/10/02)

Condensation of arylnitrile oxides with α-amino acid esters, other then those of glycine and alanine, has been found to constitute a synthetic route to the hitherto unknown 1,2,4-oxadiazin-6-ones 7. α-Amino alcohols yield with nitrile oxides the corresponding acyclic N-(arylhydroxamoyl)amino alcohols, which are also accessible by borohydride reduction of compound 7.In contrast, the adducts formed from nitrile oxides and α-amino acids are unstable; they decompose readily into the aldehyde, derived from the amino acid, together with the aldoxime, derived from the nitrile oxide.Both decomposition products are also formed when compounds 7 are subjected to mild hydrolysis.

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