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89354-97-2

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89354-97-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89354-97-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,3,5 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89354-97:
(7*8)+(6*9)+(5*3)+(4*5)+(3*4)+(2*9)+(1*7)=182
182 % 10 = 2
So 89354-97-2 is a valid CAS Registry Number.

89354-97-2Relevant articles and documents

Synthetic Studies on the Flavone Derivatives. XII. Synthesis of 2',3',5'- and 3',4',5'-Trioxygenated Flavones

Iinuma, Munekazu,Tanaka, Toshiyuki,Matsuura, Shin

, p. 2296 - 2300 (2007/10/02)

Two unusual flavones, 5,5'-dihydroxy-2',3',6,7-tetramethoxyflavone (1) from Gardenia cramerii and 4',5-dihydroxy-3',5',6,7-tetramethoxyflavone (6) from Artemisia mesatlantia, and their position isomers were synthesized to investigate the structural correlation in terms of spectral data.The structure of the flavone from G. cramerii is discussed.Keywords: 5,5'-dihydroxy-2',3',6,7-tetramethoxyflavone; 2',5-dihydroxy-3',5',6,7-tetramethoxyflavone; 5-hydroxy-2',3',5',6,7-pentamethoxyflavone; 3',5-dihydroxy-4',5',6,7-tetramethoxyflavone; 4',5-dihydroxy-3',5',6,7-tetramethoxyflavone; 5-hydroxy-3',4',5',6,7-pentamethoxyflavone.

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