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3-(Phenylcarbonyl)oxy-17β-(3-pyridinylcarbonyl)oxyestra-1,3,5(10)-triene is a complex organic compound with the molecular formula C28H23NO4. It is a derivative of estradiol, a naturally occurring estrogen hormone, and features a phenylcarbonyloxy group at the 3-position and a 3-pyridinylcarbonyloxy group at the 17β-position. 3-<(phenylcarbonyl)oxy>-17β-<(3-pyridinylcarbonyl)oxy>estra-1,3,5(10)-triene is characterized by its tricyclic structure, with a phenyl ring attached to the carbonyl group at the 3-position and a pyridine ring attached to the carbonyl group at the 17β-position. The presence of these functional groups and the overall structure of the molecule contribute to its potential biological activity and pharmacological properties, which may be relevant in the context of hormone research and drug development.

4263-55-2

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4263-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4263-55-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,6 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4263-55:
(6*4)+(5*2)+(4*6)+(3*3)+(2*5)+(1*5)=82
82 % 10 = 2
So 4263-55-2 is a valid CAS Registry Number.

4263-55-2Downstream Products

4263-55-2Relevant academic research and scientific papers

Improved delivery through biological membranes. 32. Synthesis and biological activity of brain-targeted delivery systems for various estradiol derivatives

Brewster,Estes,Bodor

, p. 244 - 249 (1988)

Brain-targeted delivery systems based on the dihydropyridine ? pyridinium salt redox interconversion were synthesized for estradiol, estradiol 3-benzoate, and ethynylestradiol. Initial biological evaluation indicated that while all four compounds synthesi

Pharmaceutical formulations for parenteral use

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, (2008/06/13)

Aqueous parenteral solutions of drugs which are insoluble or only sparingly soluble in water and/or which are unstable in water, combined with hydroxypropyl-β-cyclodextrin, provide a means for alleviating problems associated with drug precipitation at the injection site and/or in the lungs or other organs following parenteral administration.

Pharmaceutical formulations for parenteral use

-

, (2008/06/13)

Aqueous parenteral solutions of drugs which are insoluble or only sparingly soluble in water and/or which are unstable in water, combined with cyclodextrin selected from the group consisting of hydroxypropyl, hydroxyethyl, glucosyl, maltosyl and maltotriosyl derivatives of β- and γ-cyclodextrin, provide a means for alleviating problems associated with drug precipitation at the injection site and/or in the lungs or other organs following parenteral administration.

Redox systems for brain-targeted drug delivery

-

, (2008/06/13)

Inclusion complexes of hydroxypropyl, hydroxyethyl, glucosyl, maltosyl and maltotriosyl derivatives of β- and γ-cyclodextrin with the reduced, biooxidizable, blood-brain barrier penetrating, lipoidal forms of dihydropyridine pyridinium salt redox systems for brain-targeted drug delivery provide a means for stabilizing the redox systems, particularly against oxidation. The redox inclusion complexes also provide a means for decreasing initial drug concentrations in the lungs after administration of the systems, leading to decreased toxicity. In selected instances, complexation results in substantially improved water solubility of the redox systems as well.

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