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108440-14-8

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108440-14-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108440-14-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,4,4 and 0 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 108440-14:
(8*1)+(7*0)+(6*8)+(5*4)+(4*4)+(3*0)+(2*1)+(1*4)=98
98 % 10 = 8
So 108440-14-8 is a valid CAS Registry Number.

108440-14-8Upstream product

108440-14-8Relevant articles and documents

Thermal Isomerization Equilibrium between 2'-Hydroxychalcones and Flavanones

Hoshino, Yukio,Takeno, Noboru

, p. 2903 - 2904 (1986)

Nine substituted 2'-hydroxychalcones and the corresponding flavanones were heated separately at 230 +/- 0.2 deg C in nitrogen atmosphere.Both materials were mutually isomerized under these reaction conditions and the equilibrium constants of this isomerization were measured by means of HPLC analyses.The substituent effect on the equilibrium is discussed and thermodynamic functions (ΔG, ΔH, and ΔS) are calculated.

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