1236-09-5

Basic information

• Product Name: pregn-5-ene-3,20-dione
• Synonyms: pregn-5-ene-3,20-dione
• CAS NO: 1236-09-5
• Molecular Formula: C₂₁H₃₀O₂
• Molecular Weight: 0
• Mol File: 1236-09-5.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 440.1°Cat760mmHg
• Flash Point: 164.2°C
• Appearance: /
• Density: 1.08g/cm³
• Vapor Pressure: 6.03E-08mmHg at 25°C
• Refractive Index: 1.542
• CAS DataBase Reference: pregn-5-ene-3,20-dione(CAS DataBase Reference)
• NIST Chemistry Reference: pregn-5-ene-3,20-dione(1236-09-5)
• EPA Substance Registry System: pregn-5-ene-3,20-dione(1236-09-5)

Safety Data

• Hazardous Substances Data: 1236-09-5(Hazardous Substances Data)

Usage

Definition

ChEBI: A C21-steroid that is pregnane which contains a double bond between positions 5 and 6 and is substituted by oxo groups at positions 3 and 20.

InChI:InChI=1/C21H30O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h4,16-19H,5-12H2,1-3H3/t16-,17+,18-,19-,20-,21+/m0/s1

Upstream product

• 145-13-1 Pregnenolone 

Downstream Products

• 57-83-0 Progesterone 
• 145-13-1 Pregnenolone 
• 19037-28-6 (3α)-3-hydroxypregn-5-en-20-one 
• 968-93-4 testolactone 
• 302-97-6 androst-4-en-3-one-17β-carboxylic acid 
• 105079-62-7 1-((8S,9S,10R,13S,14S,17S)-10,13-Dimethyl-3-phenylethynyl-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl)-ethanone 

Related news

Partial separation of beef adrenal Δ5-3-ketosteroid isomerases: Androst-5-ene-3,17-dione isomerase and pregn-5-ene-3,20-dione (cas 1236-09-5) isomerase08/04/2019

Two distinct Δ5-3-ketosteroid isomerases, one acting on the androst-5-ene-3,17-dione and the other on pregn-5-ene-3,20-dione, were demonstrated in beef adrenal cortex homogenates and were partly separated by ammonium sulfate fractionation from a solubilized preparation of the glands. In one enz...detailed

Relevant articles and documents

Synthesis of [3α-3H]-Dehydroepiandrosterone and [3α-3H]-pregnenolone

[3α-3h]-dehydroepiandrosterone ([3α-3h]-3β-hydroxy-5-androsten-17- one) and [3α-3h]-pregnenolone ([3α-3h]-3β-hydroxy-5-pregnen-20-one) were prepared by selective reduction of 3-keto-5-ene intermediates with tritiated sodium borohydride. These were used as substrates to set up a tritium release assay for 3β-hydroxysteroid oxido-reductase and 5→4-ene isomerase (3β- HSD) which is a key enzyme in steroidogenesis.