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85969-43-3

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85969-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85969-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,9,6 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 85969-43:
(7*8)+(6*5)+(5*9)+(4*6)+(3*9)+(2*4)+(1*3)=193
193 % 10 = 3
So 85969-43-3 is a valid CAS Registry Number.

85969-43-3Relevant articles and documents

Oxidation of 2,3-Disubstituted Indoles with m-Chloroperbenzoic Acid. Formation of o-Aminophenol Derivatives and a Dimeric Product

Hino, Tohru,Yamaguchi, Hitoshi,Matsuki, Kenji,Nakano, Kumiko,Sodeoka, Mikiko,Nakagawa, Masako

, p. 141 - 146 (2007/10/02)

Oxidation of tetrahydrocarbazole (5) with m-chloroperbenzoic acid in methylene dichloride at -60 deg C gave the N-benzoyl-o-aminophenol (11) togehter with the hydroxy-3H-indole (7) and the indol-3(2H)-one (9).The N-benzoyl-o-aminophenol (11) was found to be derived from the hydroxy-4aH-carbazole (7) via an unstable tertiary amine intermediate (17) by further oxidation.The N-benzoyl-o-aminophenol (11) was also obtained by the oxidation of the other hydroxy-3H-indoles (18), (19), and (24).On the other hand, similar oxidation of N-methyl-tetrahydrocarbazole (6) gave the hydroxyenamine (28) and its dimer (27), and of 2,3-diphenylindole (31) and the N-methyl derivative (30) gave the hydroxy-3H-indole (19) and the ketoamide (33), while the 1,4-benzoxazine derivatives (34) and (35) were obtained in the case of the N-acetyl derivative (32).

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