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494803-93-9

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494803-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 494803-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,8,0 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 494803-93:
(8*4)+(7*9)+(6*4)+(5*8)+(4*0)+(3*3)+(2*9)+(1*3)=189
189 % 10 = 9
So 494803-93-9 is a valid CAS Registry Number.

494803-93-9Downstream Products

494803-93-9Relevant articles and documents

A short synthesis of aspergillamide B. The marine natural product from Aspergillus sp.

Rivas, Lucrecia,Quintero, Leticia,Fourrey, Jean-Louis,Benhida, Rachid

, p. 7639 - 7641 (2007/10/03)

A short route to the marine natural product aspergillamide B has been developed. The key step is the stereoselective formation of the trans indole-enamide pharmacophore by indole-assisted dehydration from the functionalized aminoalcohol intermediate. HPLC and 1H NMR analyses show that aspergillamide B is more stable in the cis rotamer form.

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