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134981-65-0

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134981-65-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134981-65-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,8 and 1 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 134981-65:
(8*1)+(7*3)+(6*4)+(5*9)+(4*8)+(3*1)+(2*6)+(1*5)=150
150 % 10 = 0
So 134981-65-0 is a valid CAS Registry Number.

134981-65-0Downstream Products

134981-65-0Relevant articles and documents

One-Pot Synthesis of Isomeric Cycloalkatriazolopyrimidines

Matveeva,Matikenova,Anis'kov,Kriven'ko

, p. 378 - 381 (2015)

Three-component condensation of 4H-1,2,4-triazol-3-amine with furfural (benzaldehyde) and cycloalkanone gave [1,2,4]triazolo[1,5-a]pyrimidine derivatives with a C6-C8 cycloalkene ring fused at the C5-C6 bond as mixtures of two isomers differing by the position of the double bond in the cycloalkene ring. The double bond in the major isomers is common to the cycloalkene and tetrahydropyrimidine rings, while the minor isomers have the C4a=C5 double bond. The isomers were isolated in the pure state, and their structure was determined on the basis of spectral data.

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