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7441-38-5

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7441-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7441-38-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,4 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7441-38:
(6*7)+(5*4)+(4*4)+(3*1)+(2*3)+(1*8)=95
95 % 10 = 5
So 7441-38-5 is a valid CAS Registry Number.

7441-38-5Downstream Products

7441-38-5Relevant articles and documents

A rapid and convenient synthesis of derivatives of imidazoles under Microwaveirradiation

Zhao, Na,Wang, Yu-Lu,Wang, Jin-Ye

, p. 535 - 538 (2005)

Anefficient and a quick microwave-assisted synthesis of benzimidazoles and trisubstituted imidazoles was developed. Three benzimidazoles were obtained as a result of the condensation of 1,2-phenylenediamine with carboxylic acids and acetoacetic ester without catalyst. A series of trisubstituted imidazoles were syn thesized by condensation of benzil, aromatical dehyde and ammonium acetate in the presence of glacial acetic acid.

Simple and efficient method for the synthesis of highly substituted imidazoles catalyzed by benzotriazole

Xu, Feng,Wang, Nige,Tian, Youping,Li, Gaoqiang

, p. 668 - 675 (2013/06/27)

Benzotriazole is an efficient, readily available, and simple catalyst for the synthesis of 2,4,5-trisubstituted imidazoles in high yields from 1,2-diketones and aldehydes in the presence of NH4OAc via multi-components reaction. The significant features of this one-pot procedure are very simple operation, easy work-up and purification of products.

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