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3-methoxy-D-homoestra-1,3,5(10),8-tetraen-17a-one is a complex organic compound with the molecular formula C20H26O2. It is a derivative of the steroidal structure, specifically a D-homoestrogen, which is a type of hormone that is structurally similar to estrogen but with a different carbon skeleton. The compound is characterized by the presence of a 3-methoxy group, which is a methoxy (-OCH3) functional group attached to the third carbon atom. The tetraen system refers to the four consecutive double bonds in the molecule, which are present in the 1,3,5(10),8 positions. The 17a-one indicates the presence of a ketone group at the 17th carbon atom, with the alpha (a) configuration. 3-methoxy-D-homoestra-1,3,5(10),8-tetraen-17a-one is of interest in the field of organic chemistry and may have potential applications in pharmaceuticals or as a research tool in understanding steroidal compounds.

6570-44-1

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6570-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6570-44-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,7 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6570-44:
(6*6)+(5*5)+(4*7)+(3*0)+(2*4)+(1*4)=101
101 % 10 = 1
So 6570-44-1 is a valid CAS Registry Number.

6570-44-1Relevant academic research and scientific papers

Synthesis Based on Cyclohexadienes. V. A New Approach to the Synthesis of A-Ring Aromatic Steroids: a Formal Total Synthesis of (+/-)-Estrone

Rao, G. S. R. Subba,Banerjee, D. K.,Devi, L. Uma,Sheriff, Uma

, p. 187 - 203 (2007/10/02)

A new strategy for the construction of A-ring aromatic steroids which resulted in the formal total synthesis of estrone is described.Thus reaction of the adduct (9), obtained from 1-methoxy-4-methylcyclohexa-1,4-diene and acrolein, with 3-(m-methoxyphenyl

Conformational deformation of ring C in 14β-estra-1,3,5(10),15-tetraen-17-ones

Bull,Dillen,Sefton

, p. 8143 - 8152 (2007/10/02)

High-field n.m.r. analysis of four 3-methoxy-14β-estra-1,3,5(10),15-tetraen-17-ones provides evidence for conformational deformation of ring C to a twist-boat form in solution. These observations are supported by molecular mechanics (MM2) calculations, which predict that the ring C chair and ring C twist-boat conformers have similar steric energies, slightly favouring the latter. An X-ray crystal structure determination on 3-methoxy-14-methyl-14β-estra-1,3,5(10)-,15-tetraen-17-one revealed that ring C does indeed adopt a twist-boat conformation in the solid state.

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