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74731-46-7

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74731-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74731-46-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,3 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 74731-46:
(7*7)+(6*4)+(5*7)+(4*3)+(3*1)+(2*4)+(1*6)=137
137 % 10 = 7
So 74731-46-7 is a valid CAS Registry Number.

74731-46-7Downstream Products

74731-46-7Relevant articles and documents

UNSATURATED CARBONYL-CONTAINING COMPOUNDS. XXVIII. CYCLOADDITION OF ORGANIC AZIDES TO α-ACETYLENIC KETONES AND ACIDS

Vereshchagin, L. I.,Tikhonova, L. G.,Maksikova, A. V.,Serebryakova, E. S.,Proidakov, A. G.,Filippova, T. M.

, p. 641 - 648 (2007/10/02)

The reaction of α-acetylenic ketones and acids with organic azides leads to the formation of 1-alkyl(aryl)-4-acyl(carboxy)-1,2,3-triazoles or to a mixture of the 1,4- and 1,5-disubstituted isomers.The effect of the structure of the initial compound and of the solvent on the direction of cycloaddition was investigated.

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