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1457998-41-2

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1457998-41-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1457998-41-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,5,7,9,9 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1457998-41:
(9*1)+(8*4)+(7*5)+(6*7)+(5*9)+(4*9)+(3*8)+(2*4)+(1*1)=232
232 % 10 = 2
So 1457998-41-2 is a valid CAS Registry Number.

1457998-41-2Relevant academic research and scientific papers

Total synthesis of γ-trifluoromethylated analogs of goniothalamin and their derivatives

Chen, Jun-Ling,You, Zheng-Wei,Qing, Feng-Ling

, p. 143 - 150 (2013/10/01)

An efficient method for the construction of chiral γ- trifluoromethylated α,β-unsaturated δ-lactone, a widely existing pharmacophore, has been developed and successfully applied for synthesis of γ-trifluoromethylated goniothalamins. The key steps included Evans-Aldol reaction of chiral titanium enolate of α-CF3 imide, Wittig olefination and lactonization. The transformation of γ-trifluoromethylated α,β-unsaturated δ-lactone to a series of trifluoromethylated styryllactones was also investigated.

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