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453518-18-8

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453518-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 453518-18-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,3,5,1 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 453518-18:
(8*4)+(7*5)+(6*3)+(5*5)+(4*1)+(3*8)+(2*1)+(1*8)=148
148 % 10 = 8
So 453518-18-8 is a valid CAS Registry Number.

453518-18-8Relevant articles and documents

METHOD OF SYNTHESIZING CAMPTOTHECIN-RELATING COMPOUNDS

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Page 24, (2010/02/05)

The present invention is to prepare efficiently 2'-amino-5'-hydroxypropiophenone corresponding to the AB-ring part of camptothecin (CPT) skeleton and a tricyclic ketone corresponding to the CDE-ring part in order to provide efficiently CPT by the total synthesis, which is a starting material for irinotecan hydrochloride and various kinds of camptothecin derivatives, and to provide stably CPT and its derivatives.

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