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133893-87-5

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133893-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133893-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,9 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133893-87:
(8*1)+(7*3)+(6*3)+(5*8)+(4*9)+(3*3)+(2*8)+(1*7)=155
155 % 10 = 5
So 133893-87-5 is a valid CAS Registry Number.

133893-87-5Relevant articles and documents

Substituent effect in photocatalytic oxidation of 2-oxo-1,2,3,4- tetrahydropyrimidines using TiO2 nanoparticles

Memarain, Hamid R.,Ranjbar, Mahnaz

, p. 46 - 52 (2012)

The semiconductor-sensitized oxidation of various 1-, 4- and 5-substituted 2-oxo-1,2,3,4-tetrahydropyrimidines was carried out in acetonitrile using TiO2 anatase nanoparticles. The aims of this study were to elucidate the effects of the nature

Light-induced free radical oxidation of 2-oxo-1,2,3,4-tetrahydropyrimidines

Memarian, Hamid Reza,Hejazi, Leila,Farhadi, Asadallah

experimental part, p. 263 - 268 (2012/06/30)

A variety of 4-substituted 5-acetyl- and 5-carboethoxy-2-oxo-1,2,3,4- tetrahydropyrimidines were oxidized under UV irradiation in the presence or absence of benzoyl peroxide. The nature of the substituents on the 4- and 5-positions of the heterocyclic rin

Substituent effects on the voltammetric studies of 2-oxo-1,2,3,4- tetrahydropyrimidines

Memarian, Hamid R.,Ranjbar, Mahnaz,Sabzyan, Hassan,Kiani, Abolfazl

, p. 1001 - 1011 (2013/02/22)

The electrochemical oxidation of various substituted 2-oxo-1,2,3,4- tetrahydropyrimidines (THPMs) in acetonitrile has been studied using voltammetric methods at a glassy carbon electrode to investigate the steric and electronic effects of the substituents

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