Welcome to LookChem.com Sign In|Join Free

CAS

  • or

438-23-3

438-23-3

Post Buying Request

438-23-3 Suppliers

Recommended suppliersmore

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

438-23-3 Usage

Purification Methods

Crystallise etiocholane from acetone. The method of purification for 5-androstane (above) could be used here. [Shoppee Helv Chim Acta 27 246, 260 1944, Butenandt & Dannerbaum Hoppe Seyler's Z Physiol Chem 229 192 1934, Beilstein 5 III 1110, 5 IV 1211.]

Check Digit Verification of cas no

The CAS Registry Mumber 438-23-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 438-23:
(5*4)+(4*3)+(3*8)+(2*2)+(1*3)=63
63 % 10 = 3
So 438-23-3 is a valid CAS Registry Number.
InChI:InChI=1/C19H32/c1-18-11-5-7-16(18)15-9-8-14-6-3-4-12-19(14,2)17(15)10-13-18/h14-17H,3-13H2,1-2H3/t14-,15-,16-,17-,18-,19-/m0/s1

438-23-3SDS

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 (5β)-Androstane

1.2 Other means of identification

Product number -
Other names Cholestan-3-ol,5,6-epoxy-,(3b,5b,6b)

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:438-23-3 SDS

438-23-3Upstream product

438-23-3Downstream Products

438-23-3Relevant articles and documents

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 (2015/08/25)

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.

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

What can I do for you?
Get Best Price

Get Best Price for 438-23-3