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134444-04-5

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134444-04-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134444-04-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,4,4 and 4 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134444-04:
(8*1)+(7*3)+(6*4)+(5*4)+(4*4)+(3*4)+(2*0)+(1*4)=105
105 % 10 = 5
So 134444-04-5 is a valid CAS Registry Number.

134444-04-5Relevant articles and documents

The Effect of Carbonyl Containing Substituents in the Terminal Chains on Mesomorphic Properties in Some Aromatic Esters and Thioesters 7. α-Keto Group on the Acid End of Phenylbenzoates and Thiobenzoates

Neubert, M. E.,Sharma, R. B.,Citano, C.,Jirousek, M. R.,Paulin, J. L.

, p. 145 - 155 (2007/10/02)

A few esters/thioesters of the type with Z=O, Y=C10, OC10 and Z=S, Y=C5, C10, OC5, OC12 were prepared by esterification of the α-keto acid with the appropriate phenol or thiol using the carbodiimide method.Mesomorphic properties were determined

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