Welcome to LookChem.com Sign In|Join Free
  • or
Androst-4-en-3-one,17-hydroxy-, (8a,17b)- (9CI) is a steroidal compound with the chemical formula C19H30O2. It is a derivative of androst-4-en-3-one, featuring a hydroxyl group at the 17th carbon position and a double bond between the 4th and 5th carbon atoms. Androst-4-en-3-one,17-hydroxy-, (8a,17b)- (9CI) is characterized by its 8a,17b configuration, which refers to the spatial arrangement of the hydroxyl group at the 17th carbon and the double bond at the 4th and 5th carbons. It is an important intermediate in the synthesis of various steroidal drugs and hormones, such as testosterone and other anabolic steroids, due to its structural similarity to natural steroidal compounds. The compound is also known for its potential applications in medical research and pharmaceutical development, particularly in the areas of endocrinology and sports medicine.

521-20-0

Post Buying Request

521-20-0 Suppliers

Recommended suppliers

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

521-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 521-20-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 521-20:
(5*5)+(4*2)+(3*1)+(2*2)+(1*0)=40
40 % 10 = 0
So 521-20-0 is a valid CAS Registry Number.

521-20-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name Testosterone

1.2 Other means of identification

Product number -
Other names 17β-Hydroxy-8α-androst-4-en-3-on

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:521-20-0 SDS

521-20-0Relevant academic research and scientific papers

Biotransformation of androst-4-ene-3,17-dione by some fungi

Yildirim, Kudret,Kuru, Ali,Keskin, Ece,Salihoglu, Aylin,Bukum, Neslihan

, p. 594 - 597 (2017/11/14)

The incubations of androst-4-ene-3,17-dione with Aspergillus candidus MRC 200634, Aspergillus tamarii MRC 72400, Aspergillus wentii MRC 200316 and Mucor hiemalis MRC 70325 for 5 days are reported. A. candidus MRC 200634 mainly hydroxylated androst-4-ene-3,17-dione at C-11α, C-15α and C-15β whilst A. wentii MRC 200316 hydroxylated it mainly at C-6β. A. tamarii MRC 72400 showed predominately a Baeyer–Villiger monooxygenase activity. M. hiemalis MRC 70325 hydroxylated the substrate at C-14α and reduced most of it at C-17.

A GENERAL METHOD FOR THE SELECTIVE REDUCTION OF KETONES IN THE PRESENCE OF ENONES.

Ward, Dale E.,Rhee, Chung K.,Zoghaib, Wajdi M.

, p. 517 - 520 (2007/10/02)

Ketones can be reduced in the presence of conjugated enones by sodium borohydride in 50percent methanol in dichloromethane at -78 deg C.The selectivity is generally excellent.In favorable cases the reaction can be carried out at room temperature in dichloromethane with acetic acid as catalyst.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 521-20-0