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5α,13α-Androstan is a naturally occurring steroid compound that belongs to the androstane family. It is characterized by the presence of a cycloalkane ring structure with five carbon atoms in a chair conformation, and a hydrocarbon side chain attached to the second carbon atom. The compound features a 5α-hydroxyl group and a 13α-hydroxyl group, which are responsible for its unique chemical properties. 5α,13α-Androstan is found in various biological systems, including plants and animals, and plays a role in hormone regulation and other physiological processes. Its chemical structure and functional groups make it an interesting target for research in the fields of chemistry, biology, and medicine.

1757-51-3

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1757-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1757-51-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1757-51:
(6*1)+(5*7)+(4*5)+(3*7)+(2*5)+(1*1)=93
93 % 10 = 3
So 1757-51-3 is a valid CAS Registry Number.

1757-51-3Upstream product

1757-51-3Downstream Products

1757-51-3Relevant academic research and scientific papers

A Geomimetic Approach to the Formation and Identification of Fossil Sterane Biomarkers in Crude Oil: 18-nor- D -homo-Androstane and 5α,14β-Androstane

Bender, Matthias,Schmidtmann, Marc,Summons, Roger E.,Rullk?tter, Jürgen,Christoffers, Jens

, p. 12501 - 12508 (2015)

A diazonium ion derived from 18-aminoandrostane rearranged upon decomposition by a carbonium and a carbenium ion to furnish a mixture of a cyclopropanated compound and two D-homo-androstenes. Hydrogenation of this mixture gave the saturated hydrocarbons, 18-nor-D-homo-androstane and 5α,14β-androstane, which are both fossil sterane biomarkers in Neoproterozoic crude oil. The so far unknown constitution and configuration as well as the geochemical genesis were established by this experiment. The starting material for this investigation, 18-aminoandrostane, was prepared in twelve steps from androstan-17-one (12.5% overall yield) with a Barton reaction as the key step.

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