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127998-45-2

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127998-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127998-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,9,9 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127998-45:
(8*1)+(7*2)+(6*7)+(5*9)+(4*9)+(3*8)+(2*4)+(1*5)=182
182 % 10 = 2
So 127998-45-2 is a valid CAS Registry Number.

127998-45-2Downstream Products

127998-45-2Relevant articles and documents

Asymmetric Synthesis of 4,4-Disubstituted 1-Naphthalenones. Diastereoselectivity as a Function of Metal Oxides

Wuensch, Thomas,Meyers, A. I.

, p. 4233 - 4235 (2007/10/02)

Chiral tricyclic lactam (5) was sequentionally metalated (LDA or LDA/zirconocene halides) and alkylated to give quaternary alkylation products (8) in 6-54:1 diastereomeric ratio.Reduction and hydrolysis furnish the title compound in three steps with >99 p

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