Welcome to LookChem.com Sign In|Join Free
  • or
ethyl 4-hydroxy-2-phenyl-5-oxo-2,5-dihydrofuran-3-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21053-76-9

Post Buying Request

21053-76-9 Suppliers

Recommended suppliers

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

21053-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21053-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,5 and 3 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21053-76:
(7*2)+(6*1)+(5*0)+(4*5)+(3*3)+(2*7)+(1*6)=69
69 % 10 = 9
So 21053-76-9 is a valid CAS Registry Number.

21053-76-9Downstream Products

21053-76-9Relevant academic research and scientific papers

Isotetronic acids from an oxidative cyclization

Zhou, Zhe,Walleser, Patrick M.,Tius, Marcus A.

supporting information, p. 10858 - 10860 (2015/06/30)

Oxidation of α,β-unsaturated methyl ketones with selenium dioxide leads to a cascade of reactions culminating in the formation of isotetronic acids.

Synthesis of 4-alkoxycarbonyl-butenolides by uncatalyzed one-pot cyclization of 1,3-bis(silyloxy)alk-1-enes with oxalyl chloride

Dede, Rüdiger,Michaelis, Lars,Fuentes, Dilver,Yawer, Mirza Arfan,Hussain, Ibrar,Fischer, Christine,Langer, Peter

, p. 12547 - 12561 (2008/03/13)

3-Hydroxy-4-alkoxycarbonyl-butenolides were prepared by one-pot cyclizations of 1,3-bis(silyloxy)alk-1-enes with oxalyl chloride.

Synthesis of isotetronic acids by cyclization of 1,3-bis(trimethylsilyloxy) alk-1-enes with oxalyl chloride

Dede, Rüdiger,Michaelis, Lars,Langer, Peter

, p. 8129 - 8131 (2007/10/03)

Isotetronic acids were regioselectively prepared by cyclization of 1,3-bis(trimethylsilyloxy)alk-1-enes with oxalyl chloride.

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 21053-76-9