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160154-73-4

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160154-73-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160154-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,1,5 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 160154-73:
(8*1)+(7*6)+(6*0)+(5*1)+(4*5)+(3*4)+(2*7)+(1*3)=104
104 % 10 = 4
So 160154-73-4 is a valid CAS Registry Number.

160154-73-4Relevant articles and documents

Facile synthesis of polyhydroxycoumaronochromones with quinones: Synthesis of alkylpolyhydroxy- and alkoxycoumaronochromones from 2′-hydroxyisoflavones

Tsukayama, Masao,Oda, Akihiro,Kawamura, Yasuhiko,Nishiuchi, Masaki,Yamashita, Kazuyo

, p. 6163 - 6166 (2007/10/03)

4′,5,7-Trihydroxy- or 8-alkyl-4′,5,7-trihydroxycoumaronochromones were synthesized by oxidative cyclization of the corresponding 2′-hydroxyisoflavones with o-chloranil under mild conditions. By contrast, alkoxycoumaronochromones were synthesized by oxidative cyclization of the corresponding 2′-hydroxyisoflavones with DDQ.

Regioselective Synthesis of Prenylisoflavones. Syntheses of 2,3-Dehydrokievitone and Related Compounds

Tsukayama, Masao,Tsurumoto, Ken,Kishimoto, Kazuto,Higuchi, Daisuke

, p. 2101 - 2104 (2007/10/02)

The palladium-catalyzed coupling reaction of 2',4',5,7-tetrakis(benzyloxy)-8-iodoisoflavone with 2-methyl-3-butyn-2-ol gave the corresponding 8-(3-hydroxy-3-methylbutynyl)isoflavone 8.Dehydration of the benzoate obtained from 8 in two steps gave a mixture

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