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91288-16-3

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91288-16-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91288-16-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,8 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91288-16:
(7*9)+(6*1)+(5*2)+(4*8)+(3*8)+(2*1)+(1*6)=143
143 % 10 = 3
So 91288-16-3 is a valid CAS Registry Number.

91288-16-3Relevant articles and documents

REACTION OF ETHYL 2-AMINO-4,6-O-BENZYLIDENE-2-DEOXY-D-GLUCONATE WITH ACETYLENIC ESTERS

Miquel, Luis M. Vazquez de,Blazquez, Jose A. Serrano,Barros, Fernando J. Garcia,Guillen, Manuel Gomez

, p. 81 - 90 (2007/10/02)

Ethyl 2-amino-4,6-O-benzylidene-2-deoxy-D-gluconate adds to acetylenic esters to give sugar enaminones.The following acetylene derivatives have been employed: methyl propiolate, ethyl phenylpropiolate, and dimethyl acetylenedicarboxylate (6).With compound 6, the reaction leads to a mixture of the expected enaminone and the isomeric oxazolidine derivative.The structures and configurations of the new compounds were studied by spectroscopic and chemical methods.

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