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1393673-72-7

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1393673-72-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1393673-72-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,3,6,7 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1393673-72:
(9*1)+(8*3)+(7*9)+(6*3)+(5*6)+(4*7)+(3*3)+(2*7)+(1*2)=197
197 % 10 = 7
So 1393673-72-7 is a valid CAS Registry Number.

1393673-72-7Relevant articles and documents

A new synthetic strategy for catechin-class polyphenols: Concise synthesis of (-)-epicatechin and its 3-O-gallate

Stadlbauer, Sven,Ohmori, Ken,Hattori, Fumihiko,Suzuki, Keisuke

supporting information, p. 8425 - 8427 (2012/10/29)

Concise synthesis of (-)-epicatechin and its 3-O-gallate is described, illustrating efficacy of the new strategy for catechin-class polyphenols based on assembly of lithiated fluorobenzene and epoxy alcohol followed by a pyran cyclization. 1,3,5-Trifluorobenzene serves as the A-ring equivalent for functionalization and the pyran annulation.

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