Welcome to LookChem.com Sign In|Join Free

CAS

  • or

189954-93-6

Post Buying Request

189954-93-6 Suppliers

Recommended suppliersmore

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

189954-93-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189954-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,9,5 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189954-93:
(8*1)+(7*8)+(6*9)+(5*9)+(4*5)+(3*4)+(2*9)+(1*3)=216
216 % 10 = 6
So 189954-93-6 is a valid CAS Registry Number.

189954-93-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name (S)-5-ethyl-5-methyl-3-(1-methylethoxy)-4-[(4-methylsulfonyl)phenyl]-3-oxolen-2-one

1.2 Other means of identification

Product number -
Other names 5(S)-ethyl-5-methyl-4-(4-(methylsulfonyl)phenyl)-3-(2-propoxy)-5H-furan-2-one

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:189954-93-6 SDS

189954-93-6Relevant articles and documents

An approach for the enantioselective synthesis of biologically active furanones from a Morita-Baylis-Hillman adduct

Amarante, Giovanni W.,Coelho, Fernando

experimental part, p. 6749 - 6753 (2010/10/03)

Herein, we disclose an approach for the asymmetric synthesis of both enantiomers of an anti-inflammatory furanone. The approach is based on the utilization of a Morita-Baylis-Hillman adduct as starting material and has as key step a selective epoxide-opening/benzylic oxidation mediated by Palladium (II). This sequence afforded an advanced intermediate, which was used to accomplish the total synthesis. Experimental evidences allowed us to suggest a mechanistic proposal for the oxidation Palladium(II)-mediated.

Discovery of a potent and selective COX-2 inhibitor in the alkoxy lactone series with optimized metabolic profile.

Leblanc, Yves,Roy, Patrick,Wang, Zhaoyin,Li, Chun Sing,Chauret, Nathalie,Nicoll-Griffith, Deborah A,Silva, Jose M,Aubin, Yves,Yergey, James A,Chan, Chi Chung,Riendeau, Denis,Brideau, Christine,Gordon, Robert,Xu, Lijing,Webb, Janine,Visco, Denise M,Prasit, Petpiboon

, p. 3317 - 3320 (2007/10/03)

The COX-2 inhibitor DFP [5,5-dimethyl-3-(2-propoxy)-4-methanesulfonylphenyl)-2(5H)-furanone] was found to have a long half-life in humans. Analogues have been characterized in order to optimize pharmacokinetics. This has lead to the discovery of 5(S)-(5-ethyl-5-methyl-3-(2-propoxy)-4-methanesulfonylphenyl)-2(5H)-furanone analogue 11 a potent and selective COX-2 inhibitor which is metabolized to a greater extent than DFP upon incubation with rat and human hepatocytes, suggesting a shorter half-life in humans.

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 189954-93-6