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23418-90-8

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23418-90-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23418-90-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,1 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 23418-90:
(7*2)+(6*3)+(5*4)+(4*1)+(3*8)+(2*9)+(1*0)=98
98 % 10 = 8
So 23418-90-8 is a valid CAS Registry Number.

23418-90-8Relevant articles and documents

Stereoselective Suzuki coupling reaction of an α-bromo-α-fluoro-β-lactam

Tarui, Atsushi,Miyata, Erina,Tanaka, Ayumi,Sato, Kazuyuki,Omote, Masaaki,Ando, Akira

, p. 55 - 58 (2015)

A new strategy has been developed for the synthesis of α-aryl-α-fluoro-β-lactams via the Suzuki cross-coupling of α-bromo-α-fluoro-β-lactam with a range of different aryl-(9-BBN) reagents. This method provides facile access to multisubstituted α-fluoro-β-lactams in a diastereoselective manner. The synthetic utility of α-bromo-α-fluoro-β-lactam has been demonstrated by the arylation of α-bromo-α-fluoro-β-lactam.

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