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80727-84-0

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80727-84-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80727-84-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,7,2 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80727-84:
(7*8)+(6*0)+(5*7)+(4*2)+(3*7)+(2*8)+(1*4)=140
140 % 10 = 0
So 80727-84-0 is a valid CAS Registry Number.

80727-84-0Relevant articles and documents

Thieno[2,3-d]pyridazine cyclometalated iridium complex and preparation method thereof

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, (2020/07/15)

The invention discloses a thieno[2,3-d]pyridazine cyclometalated iridium complex and a preparation method thereof, belonging to the field of organic photoelectric materials. The thieno[2,3-d]pyridazine cyclometalated iridium complex provided by the invention overcomes the problems that an existing cyclometalated iridium complex is very sensitive to oxygen, and the quantum efficiency of the existing pyridazine iridium complex is not high. The preparation method comprises the following steps: synthesizing a monochloro-substituted thieno[2,3-d]pyridazine intermediate through a four-step reaction;mixing the monochloro-substituted thieno[2,3-d]pyridazine intermediate with substituted phenol, substituted thiophenol, substituted aniline or substituted carbazole active hydrogen-containing compounds dissolved in an organic solvent, adding alkali, and carrying out a reaction to generate thieno[2,3-d]pyridazine ligand; and mixing the obtained thieno[2,3-d]pyridazine ligand with iridium trichloride and a solvent, and carrying out a reaction for a period of time to obtain the thieno[2,3-d]pyridazine cyclometalated iridium complex.

POTASSIUM CHANNEL MODULATORS

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Page/Page column 22, (2011/06/19)

Disclosed herein are KCNQ potassium channels modulators of formula (I) wherein ring Z1, R1, p, R3, and R4 are as defined in the specification. Compositions comprising such compounds; and methods for treating conditions and disorders using such compounds and compositions are also described.

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