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C21H21BO5 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

203259-12-5

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203259-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203259-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,2,5 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 203259-12:
(8*2)+(7*0)+(6*3)+(5*2)+(4*5)+(3*9)+(2*1)+(1*2)=95
95 % 10 = 5
So 203259-12-5 is a valid CAS Registry Number.

203259-12-5Relevant academic research and scientific papers

Concise syntheses of acromelic acid A and allo-acromelic acid A

Baldwin, Jack E.,Fryer, Andrew M.,Pritchard, Gareth J.,Spyvee, Mark R.,Whitehead, Roger C.,Wood, Mark E.

, p. 707 - 710 (2007/10/03)

Acromelic acid A 1 and allo-acromelic acid A 12 were synthesised in a biomimetic fashion. An oxidative cleavage-recyclisation strategy was used to construct the requisite C-4 pyridone from an intermediate catechol.

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