Welcome to LookChem.com Sign In|Join Free

CAS

  • or

121086-83-7

Post Buying Request

121086-83-7 Suppliers

Recommended suppliersmore

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

121086-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121086-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,8 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121086-83:
(8*1)+(7*2)+(6*1)+(5*0)+(4*8)+(3*6)+(2*8)+(1*3)=97
97 % 10 = 7
So 121086-83-7 is a valid CAS Registry Number.

121086-83-7Downstream Products

121086-83-7Relevant articles and documents

Organotin-mediated Synthesis of Macrocyclic Polyesters: Mechanism and Selectivity in the Reaction of Dioxastannolanes with Diacyl Dichlorides

Roelens, Stefano

, p. 1617 - 1626 (2007/10/02)

The reaction of 2,2-di-n-butyl-1,3,2-dioxastannolane with diacyl dichlorides for the synthesis of macrocyclic tetraesters has been investigated to gain an insight into its mechanistic pathway and to ascertain the occurrence of genuine template effects.Experimental results show unambiguously that the reaction is a clean cyclo-oligomerization involving a fast transesterification equilibrium that affords a thermodynamic distribution of oligomeric esters.No evidence to support a structural or 'covalent' template effect by tin was found.Instead, dioxastannolane is not only the reagent, but also behaves as an efficient transesterification catalyst that equilibrates the macrocyclic ester mixture.In this context, the reaction can hardly be considered selective.

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 121086-83-7