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N,N-dimethyl-4-(2-pyridylazo)aniline 1-oxide, also known as Orange II, is an azo dye with the chemical formula C16H16N4O. It is a yellow powder that is soluble in water, alcohol, and ether, and is widely used as a colorant in various applications, including textiles, plastics, and paper. The compound is synthesized by coupling 4-dimethylaminobenzene with 2-pyridylazo compound, followed by oxidation to form the 1-oxide. Due to its potential environmental and health concerns, its use is regulated in many countries, and efforts are being made to develop safer alternatives.

7687-04-9

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7687-04-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7687-04-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,8 and 7 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7687-04:
(6*7)+(5*6)+(4*8)+(3*7)+(2*0)+(1*4)=129
129 % 10 = 9
So 7687-04-9 is a valid CAS Registry Number.

7687-04-9Relevant articles and documents

(±)-Nantenine analogs as antagonists at human 5-HT2A receptors: C1 and flexible congeners

Chaudhary, Sandeep,Pecic, Stevan,LeGendre, Onica,Navarro, Hérnan A.,Harding, Wayne W.

scheme or table, p. 2530 - 2532 (2009/12/25)

C1 and flexible analogs of (±)-nantenine were synthesized and evaluated for antagonist activity at human 5-HT2A receptors in a calcium mobilization assay. This work has resulted in the identification of the most potent 5-HT2A antagon

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