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92665-82-2

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92665-82-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92665-82-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,6,6 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 92665-82:
(7*9)+(6*2)+(5*6)+(4*6)+(3*5)+(2*8)+(1*2)=162
162 % 10 = 2
So 92665-82-2 is a valid CAS Registry Number.

92665-82-2Relevant articles and documents

Tannins and Related Compounds. XXI. Isolation and Characterization of Galloyl and p-Hydroxybenzoyl Esters of Benzophenone and Xanthone C-glucosides from Mangifera indica L.

Tanaka, Takashi,Sueyasu, Tokiko,Nonaka, Gen-ichiro,Nishioka, Itsuo

, p. 2676 - 2686 (2007/10/02)

Six new galloyl and p-hydroxybenzoyl esters (2-7) of benzophenone C-glucosides have been isolated, together with a new benzophenone C-glucoside (1), from the leaves of Mangifera indica L. (Anacardiaceae).On the basis of chemical and spectroscopic evidence, the structures of these compounds have been established as maclurin 3-C-β-D-glucoside (1), maclurin 3-C-(6''-O-p-hydroxybenzoyl)-β-D-glucoside (2), maclurin 3-C-(2''-O-galloyl-6''-O-p-hydroxybenzoyl)-β-D-glucoside (3), maclurin 3-C-(2''-O-p-hydroxybenzoyl-6''-O-galloyl)-β-D-glucoside (4), maclurin 3-C-(2'',3'',6''-tri-O-galloyl)-β-D-glucoside (5), iriflophenone 3-C(2'',6''-di-O-galloyl)-β-D-glucoside (6) and iriflophenone 3-C-(2'',3'',6''-tri-O-galloyl)-β-D-glucoside (7). (-)-Epicatechin 3-O-gallate (9), mangiferin (10), isomangiferin (11) and a new xanthone C-glucoside gallate, mangiferin 6'-O-gallate (8), have also been isolated and their structures have been similarly characterized.Furthermore, the above plant source contained polygalloylglucoses which were characterized on the basis of chemical and high performance liquid chromatographic analyses as a mixture of penta- to undecagalloylglucoses based on a 1,2,3,4,6-penta-O-galloyl-β-D-glucose core.Maclurin 3-C-glucoside (1) has been transformed enzymatically to mangiferin (10) and isomangiferin (11), and it has become clear that 1 is a key intermediate in the biosynthesis of 10 and 11. Keywords - Mangifera indica; Anacardiaceae; galloyl maclurin 3-C-glucoside p-hydroxybenzoate; galloyl iriflopenone 3-C-glucoside; galloyl mangiferin; benzophenone C-glucoside; biosynthesys; mangiferin; isomangiferin; galloylglucose

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