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628339-17-3

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628339-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 628339-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,8,3,3 and 9 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 628339-17:
(8*6)+(7*2)+(6*8)+(5*3)+(4*3)+(3*9)+(2*1)+(1*7)=173
173 % 10 = 3
So 628339-17-3 is a valid CAS Registry Number.

628339-17-3Relevant articles and documents

Application of directed metalation in synthesis. Part 6: A novel anionic rearrangement under directed metalation conditions leading to heteroannulation

Pradhan, Tarun Kanti,Mukherjee, Chandrani,Kamila, Sukanta,De, Asish

, p. 5215 - 5224 (2007/10/03)

A short and efficient synthesis of condensed 1,4-oxathiin-2-ones from easily available phenols is described. The key step in this synthesis is a hitherto unreported anionic rearrangement under directed metalation conditions. The rearrangement occurs after

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