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98634-39-0

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98634-39-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98634-39-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,3 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 98634-39:
(7*9)+(6*8)+(5*6)+(4*3)+(3*4)+(2*3)+(1*9)=180
180 % 10 = 0
So 98634-39-0 is a valid CAS Registry Number.

98634-39-0Relevant articles and documents

Asymmetric cyclic phosphorothonamides containing substituted pyridine

Shi, De-Qing,Feras, Abudhaim,Liu, Yi

, p. 2663 - 2673 (2007/10/03)

In order to find high-acitivity and low-toxicity pesticidal lead compounds, a type of novel, asymmetric cyclic phosphorothonamides containing substituted pyridine were synthesized via the condensation reactions of 2-chloro-4- substitutedphenyl-5,5-dimethy

The Design of Resolving Agents. Chiral Cyclic Phosphoric Acids

Hoeve, Wolter ten,Wynberg, Hans

, p. 4508 - 4514 (2007/10/02)

A systematic investigation has been started with the twofold purpose of synthesizing efficient resolving agents and of gaining an insight into the factors that contribute to successful resolutions.We report on the synthesis, resolution, and application of a number of chiral cyclic phosphoric acids.Among these acids, 4-(2-chlorophenyl)-5,5-dimethyl-2-hydroxy-1,3,2-dioxaphosphorinane 2-oxide (7A) is an efficient resolving agent, being useful for the resolution of amines and amino acids.Acid chloride 20 is a useful reagent for the determination of the ee of chiral amines.The absolute configuration of (-)-7A was determined through an X-ray structure determination of its salt with (-)-(p-hydroxyphenyl)glycine.

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