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155933-99-6

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155933-99-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155933-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,9,3 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 155933-99:
(8*1)+(7*5)+(6*5)+(5*9)+(4*3)+(3*3)+(2*9)+(1*9)=166
166 % 10 = 6
So 155933-99-6 is a valid CAS Registry Number.

155933-99-6Relevant articles and documents

FUSED FURAN CONSTRUCTION VIA AN INTRAMOLECULAR CYCLOADDITION REACTION: SYNTHESES OF 4H-CYCLOHEPTA- AND 4H-CYCLOPENTAFURANS

Shishido, Kozo,Umimoto, Koji,Shibuya, Masayuki

, p. 641 - 658 (2007/10/02)

General and efficient syntheses of 4H-cyclohepta- and 4H-cyclopentafurans (4 and 5) have been accomplished employing the intramolecular dipolar cycloaddition based fused furan construction strategy.Treatment of the oximes (20 and 29), readily pre

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