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208335-53-9

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208335-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 208335-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,3,3 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 208335-53:
(8*2)+(7*0)+(6*8)+(5*3)+(4*3)+(3*5)+(2*5)+(1*3)=119
119 % 10 = 9
So 208335-53-9 is a valid CAS Registry Number.

208335-53-9Relevant articles and documents

IMDAF Cycloaddition as a Method for the Preparation of Pyrrolophenanthridine Alkaloids

Padwa, Albert,Dimitroff, Martin,Waterson, Alex G.,Wu, Tianhua

, p. 3986 - 3997 (2007/10/03)

Acylation of 5-amino-2-furancarboxylic acid methyl ester with alkenoyl acid chlorides gives 2-amidofurans that undergo intramolecular Diels-Alder cycloadditions. The reactions occur at 165°C in toluene or at 100°C when 4 M ethereal LiClO4 was u

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