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130034-54-7

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130034-54-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130034-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,0,3 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 130034-54:
(8*1)+(7*3)+(6*0)+(5*0)+(4*3)+(3*4)+(2*5)+(1*4)=67
67 % 10 = 7
So 130034-54-7 is a valid CAS Registry Number.

130034-54-7Relevant articles and documents

From (E)- and (Z)-ketoximes to N-sulfenylimines, ketimines or ketones at will. Application to erythromycin derivatives

Esteban, Jorge,Costa, Anna M.,Urpí, Fèlix,Vilarrasa, Jaume

, p. 5563 - 5567 (2004)

Reactions of (E)- and (Z)-ketoximes with trialkylphosphines and diphenyl disulfide (PhSSPh) have been compared to gain insight into the mechanisms involved and their potential applications. N-Sulfenylimine isomers and ketimines have been spectroscopically characterised. Both the E and Z isomers of erythromycin A oxime, when treated with Bu3P and PhSSPh (1:4:8 ratio), give the same N-phenylsulfenyl ketimine (of configuration E) as the major compound, whereas with Bu3P or Me3P and PySeSePy (1:8:4 ratio) afford the imine in good yield. Clarithromycin oxime behaves similarly.

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