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204759-78-4

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204759-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204759-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,7,5 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 204759-78:
(8*2)+(7*0)+(6*4)+(5*7)+(4*5)+(3*9)+(2*7)+(1*8)=144
144 % 10 = 4
So 204759-78-4 is a valid CAS Registry Number.

204759-78-4Relevant articles and documents

Synthesis of D-erythrose and D-threose derived nitrones and cycloadditions to styrene

Kuban, Juraj,Blanarikova, Iva,Fisera, L'ubor,Jaroskova, Libuse,Fengler-Veith, Marion,Jaeger, Volker,Kozisek, Jozef,Humpa, Otakar,Pronayova, Nad'a,Langer, Vratislav

, p. 9501 - 9514 (2007/10/03)

The new nitrones derived from cyclic acetals of D-erythrose (2a-c) and D-threose (8) react with styrene to afford the corresponding 3,5- disubstituted diastereomeric isoxazolidines 3-6 and 9-12. The stereoselectivity was dependent on the steric hindrance

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