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31558-25-5

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31558-25-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31558-25-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,5 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31558-25:
(7*3)+(6*1)+(5*5)+(4*5)+(3*8)+(2*2)+(1*5)=105
105 % 10 = 5
So 31558-25-5 is a valid CAS Registry Number.

31558-25-5Relevant articles and documents

Hot water-promoted ring-opening of epoxides and aziridines by water and other nucleopliles

Wang, Zhi,Cui, Yong-Tao,Xu, Zhao-Bing,Qu, Jin

, p. 2270 - 2274 (2008)

Effective hydrolysis of epoxides and aziridines was conducted by heating them in water at 60 or 100 °C. Other types of nucleophile such as amines, sodium azide, and thiophenol could also efficiently open epoxides and aziridines in hot water. It was proposed that hot water acted as a modest acid catalyst, reactant, and solvent in the hydrolysis reactions.

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