Welcome to LookChem.com Sign In|Join Free
  • or
2-((R)-2-(R)-Chlorosulfinyl-4-oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

127444-57-9

Post Buying Request

127444-57-9 Suppliers

Recommended suppliers

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

127444-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127444-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,4,4 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 127444-57:
(8*1)+(7*2)+(6*7)+(5*4)+(4*4)+(3*4)+(2*5)+(1*7)=129
129 % 10 = 9
So 127444-57-9 is a valid CAS Registry Number.

127444-57-9Upstream product

127444-57-9Relevant academic research and scientific papers

Chiral Sulfinyl Chlorides as Intermediates in Interconversion of 4-Oxoazetidine-2-sulfinic Acid Derivatives

Herak, Jure J.

, p. 393 - 398 (2007/10/02)

Stereochemically pure methylsulfinates 3 and benzylsulfinamides 4 are readily epimerized in the presence of hydrogen chloride and at the same time they can be transformed by sulfinate-sulfinamide interconversion.Formation of sulfinyl chlorides 2 as intermediates and their epimerization by rapid chloride anion exchange at sulfur atom is proposed.The equilibrated ratio between epimers 2a and 2b determines the enantioselectivity of these processes.

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 127444-57-9