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57444-30-1

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57444-30-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57444-30-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,4 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57444-30:
(7*5)+(6*7)+(5*4)+(4*4)+(3*4)+(2*3)+(1*0)=131
131 % 10 = 1
So 57444-30-1 is a valid CAS Registry Number.

57444-30-1Downstream Products

57444-30-1Relevant articles and documents

A convenient preparation of O-alkyl selenoesters from esters

Wright, Stephen W.

, p. 1331 - 1334 (2007/10/02)

A new methodology is described for the synthesis of O-alkyl selenoesters from esters. The ester is converted to the silyl ketene acetal with LDA and Me3SiCl, which is then treated with H2Se generated in situ from aluminum selenide and dilute HCl.

Reactions of relevance to the chemistry of aminoglycoside antibiotics. Part 8. Synthesis and properties of O-alkyl selenoesters.

Barton,Hansen,Picker

, p. 1723 - 1730 (2007/10/05)

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