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97743-92-5

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97743-92-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97743-92-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,4 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97743-92:
(7*9)+(6*7)+(5*7)+(4*4)+(3*3)+(2*9)+(1*2)=185
185 % 10 = 5
So 97743-92-5 is a valid CAS Registry Number.

97743-92-5Relevant articles and documents

Gemins D, E and F, ellagitannins from Geum japonicum

Yoshida, Takashi,Maruyama, Yasuhiko,Memon, M.Usman,Shingu, Tetsuro,Okuda, Takuo

, p. 1041 - 1046 (1985)

Three new ellagitannins, gemin D, E and F were isolated from the leaves of Geum japonicum. The structures of gemin D and F were established as 3-O-galloyl-4,6-O-[(S-hexahydroxydiphenoyl]-D-glucose and 6-O-caffeoyl-2,3-O-[(S-hexahydroxydiphenoyl]-D-glucose, respectively. Gemin E is a novel C-glucosidic ellagitanin having a dehydrohexahydroxydiphenoyl group in the molecule. Gemin D was also isolated from the flower buds of Camellia japonica.

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