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70239-64-4

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70239-64-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70239-64-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,3 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70239-64:
(7*7)+(6*0)+(5*2)+(4*3)+(3*9)+(2*6)+(1*4)=114
114 % 10 = 4
So 70239-64-4 is a valid CAS Registry Number.

70239-64-4Relevant articles and documents

Phase transfer catalysis extends the scope of the Algar-Flynn-Oyamada synthesis of 3-Hydroxyflavones

Nhu, Duong,Hawkins, Bill C.,Burns, Christopher J.

, p. 1102 - 1107 (2016/01/15)

The Algar-Flynn-Oyamada reaction is the classical method to synthesize 3-hydroxyflavones from chalcones. Despite its relative simplicity, the reaction has several drawbacks including variable and often low product yields. We have found that phase transfer

STRUCTURAL CONFIRMATION OF SPIROELLIPTIN FROM IRYANTHERA ELLIPTICA BY SYNTHESIS

Morais, Anselmo A.,Fo, Raimundo Braz,Gottlieb, Otto R.

, p. 3023 - 3028 (2007/10/02)

Spiroelliptin, a spiro from Iryanthera elliptica was synthesized by a novel process which involved the catalytic hydrogenation of the appropriate chalcone.This and other spiro derivati

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