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82859-04-9

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82859-04-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82859-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,8,5 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82859-04:
(7*8)+(6*2)+(5*8)+(4*5)+(3*9)+(2*0)+(1*4)=159
159 % 10 = 9
So 82859-04-9 is a valid CAS Registry Number.

82859-04-9Downstream Products

82859-04-9Relevant articles and documents

Synthesis in the Diazasteroid Group. XVIII. Syntheses of the 9,17-Diazasteroid System

Matoba, Katsuhide,Fukushima, Akiko,Takahata, Hiroki,Hirai, Yoshiro,Yamazaki, Takao

, p. 1300 - 1306 (2007/10/02)

A 9,17-diazasteroid system, I, was synthesized from an aminoester, III, and cyclohexanone.Unfortunately the yield was poor.Another 9,17-diazasteroid system, II, was prepared from the condensation product, XVa, of quinoline N-oxide with an active methine compound, IV.Thus, XVa was hydrolyzed, followed by decarboxylation, reduction and cyclization.The yield in each step to II was moderate.Keywords- azasteroid; diazasteroid; quinoline N-oxide; cyclization; Pictet-Spengler reaction; active methylene compound; pyrrolopyridine; quinolylpyrrolidine

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