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6468-53-7

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6468-53-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6468-53-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,6 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6468-53:
(6*6)+(5*4)+(4*6)+(3*8)+(2*5)+(1*3)=117
117 % 10 = 7
So 6468-53-7 is a valid CAS Registry Number.

6468-53-7Relevant articles and documents

Synthesis of 5,7-Dihydroxy-2',4',5'-trimethoxyisoflavone and Its 7-Methyl Ether (Robustigenin)

Nakayama, Mitsuru,Ohira, Susumu,Matsui, Takanao

, p. 831 - 832 (2007/10/02)

The treatment of 2,4,6-trihydroxy-2',4',5'-trimethoxydeoxybenzoin with benzyl chloride gave a dibenzyl ether.The condensation of the ether with ethyl formate, followed by the debenzylation of the resulting isoflavone, afforded 5,7-dihydroxy-2',4',5'-trimethoxyisoflavone, which was then converted into a pentamethoxyisoflavone.The partial demethylation of the pentamethoxyisoflavone gave 5-hydroxy-2',4',5',7'-tetramethoxyisoflavone, which was identical with natural robustigenin.

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