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77316-88-2

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77316-88-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77316-88-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,3,1 and 6 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77316-88:
(7*7)+(6*7)+(5*3)+(4*1)+(3*6)+(2*8)+(1*8)=152
152 % 10 = 2
So 77316-88-2 is a valid CAS Registry Number.

77316-88-2Relevant articles and documents

Synthesis of C - C-Bridged Bis-Isoflavones

Al-Maharik, Nawaf I.,Kaltia, Seppo A. A.,Mutikainen, Ilpo,Waehaelae, Kristiina

, p. 2305 - 2308 (2007/10/03)

Unique C - C-bridged bis-isoflavones 5, 8, and 9 were obtained by reaction of 2-bromomethyl-7,4′-dimethoxyisoflavone 4 with ethyl cyanoacetate anion or tetraethylammonium cyanide or by Pd-catalyzed ethoxycarbonylation, respectively. The phenolic carboxylic acid 7 is available from 5 in two steps.

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