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169775-81-9

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169775-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 169775-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,7,7 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 169775-81:
(8*1)+(7*6)+(6*9)+(5*7)+(4*7)+(3*5)+(2*8)+(1*1)=199
199 % 10 = 9
So 169775-81-9 is a valid CAS Registry Number.

169775-81-9Downstream Products

169775-81-9Relevant articles and documents

Synthesis of 1-Formyl-1,2-dihydroquinoline Derivatives by a Lewis Acid-Catalyzed Cyclization of o-(1-Hydroxy-2-alkenyl)phenyl Isocyanides

Kobayashi, Kazuhiro,Nagato, Satoshi,Kawakita, Masataka,Morikawa, Osamu,Konishi, Hisatoshi

, p. 575 - 576 (2007/10/03)

An efficient route to 1-formyl-1,2-dihydroquinolines 6 is described based on the BF3-catalyzed cyclization of o-(1-hydroxy-2-alkenyl)phenyl isocyanides 4, which can be prepared feasibly by the reaction of N-(o-acylphenyl)formamides 1 with alkenylmagnesium

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