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74441-44-4

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74441-44-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74441-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,4 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74441-44:
(7*7)+(6*4)+(5*4)+(4*4)+(3*1)+(2*4)+(1*4)=124
124 % 10 = 4
So 74441-44-4 is a valid CAS Registry Number.

74441-44-4Downstream Products

74441-44-4Relevant articles and documents

Studies on Cycloimmonium Ylides: Synthesis of Some New 2,4,6-Trisubstituted Pyridines. 2

Tewari, Ram S.,Chaturvedi, Suresh C.,Nagpal, Dinesh K.

, p. 293 - 295 (2007/10/02)

A wide range of 2,6-di(thienyl)-4-arylpyridines, 2-(4-biphenyl)-4-aryl-6-(2-thienyl)pyridines, and 2-(4-biphenyl)-4-aryl-6-(2-naphthyl)pyridines have have been synthesized by the interaction of 1-(2-thiophenoylmethyl)pyridinium iodide, 1-(4-phenylphenacyl)pyridinium bromide, and 1-(2-naphthoylmethyl)pyridinium bromide with a variety of α,β-unsaturated ketones.Ammonium acetate in glacial acetic acid was used as cyclization agent.The structures of the resulting products were confirmed by IR and NMR spectral analyses.

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