Cas 107905-31-7,C20H16F8O6Te

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Check Digit Verification of cas no

The CAS Registry Mumber 107905-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,0 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 107905-31:
(8*1)+(7*0)+(6*7)+(5*9)+(4*0)+(3*5)+(2*3)+(1*1)=117
117 % 10 = 7
So 107905-31-7 is a valid CAS Registry Number.

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107905-31-7Relevant articles and documents

REACTION OF TETRAKIS(POLYFLUOROALKOXY)TELLURANES WITH CARBOXYLIC AND DICARBOXYLIC ACID ANHYDRIDES

Stukalo, E. A.,Yur'eva, E. M.,Markovskii, L. N.

, p. 675 - 681 (2007/10/02)

Depending on the reaction conditions, the reaction of tetrakis(polyfluoroalkoxy)telluranes with acetic, trifluoroacetic, benzoic, and phthalic anhydrides gives acyloxy(polyfluoroalkoxy)telluranes or esters of acyloxytellurous acid, which are a new type of derivatives of tetra- and hexacoordinated tellurium.Polyfluorinated esters are also obtained in the reaction of acid anhydrides with (polyfluoroalkoxy)telluranes.

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107905-31-7