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122271-54-9

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122271-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122271-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,2,7 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 122271-54:
(8*1)+(7*2)+(6*2)+(5*2)+(4*7)+(3*1)+(2*5)+(1*4)=89
89 % 10 = 9
So 122271-54-9 is a valid CAS Registry Number.

122271-54-9Downstream Products

122271-54-9Relevant articles and documents

Isolation, Structure, and Synthesis of Combretastatin C-1

Singh, Sheo Bux,Pettit, George R.

, p. 4105 - 4114 (2007/10/02)

A new cell growth inhibitory (PS ED50 2.2 μg/mL) phenanthraquinone designated combretastatin C-1 (2) has been isolated from the African tree Combretum caffrum.The structure (2) assigned combretastatin C-1 was based on high-resolution mass and NMR spectral analyses and confirmed by total syntheses.Synthetic routes 5b -> 6b -> 2 and especially 5c -> 6c -> 2 proved to be quite practical.

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