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65716-50-9

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65716-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65716-50-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,7,1 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 65716-50:
(7*6)+(6*5)+(5*7)+(4*1)+(3*6)+(2*5)+(1*0)=139
139 % 10 = 9
So 65716-50-9 is a valid CAS Registry Number.

65716-50-9Relevant articles and documents

Strategies of Synthesis based on Cyclohexadienes: Part 3. A Novel Route to Macrolide Aromatic Polyketides

Birch, Arthur J.,Mani, Neelakandha S.,Rao, G. S. R. Subba

, p. 1423 - 1427 (2007/10/02)

A novel route to macrolide aromatic polyketides, having an alkyl-β-resorcylate skeleton has been developed.A formal synthesis of (+/-)-curvularin (1), and (+/-)-lasiodiplodin (3) involving the preparation of the seco acid (31) and the acyclic precursor (34) using a one pot Alder-Rickert reaction from 1,3-dimethoxycyclohexa-1,3-diene (7) and the long-chain acetylenic dienophiles (10) and (11) is reported.

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