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107389-27-5

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107389-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107389-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,3,8 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 107389-27:
(8*1)+(7*0)+(6*7)+(5*3)+(4*8)+(3*9)+(2*2)+(1*7)=135
135 % 10 = 5
So 107389-27-5 is a valid CAS Registry Number.

107389-27-5Relevant articles and documents

Heterocyclen aus α-Nitroolefinen. XI. 1,2-Oxazine aus α-Nitroolefinen und β-Dicarbonylverbindungen

Boberg, Friedrich,Ruhr, Maria,Garburg, Karl-Heinz,Garming, Alfons

, p. 759 - 766 (2007/10/02)

Dihydro-1,2-oxazines 8 and 1,2-oxazines 12 are formed by the reaction of the nitronic acids of the adducts of α-nitroolefins and β-dicarbonyl compounds (6) by two ways: A) The nitronic acids 6 are heated in a boiling solution of urea in ethanol or methanol.B) The nitronic acids 6 are reduced with an aqueous solution of ammoniumchloride and sodium sulfide. 1 H-nmr and 13 C-nmr investigations prove the constitutions.The mechanism is discussed.

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