Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1338916-51-0

Post Buying Request

1338916-51-0 Suppliers

Recommended suppliersmore

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

1338916-51-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338916-51-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,9,1 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1338916-51:
(9*1)+(8*3)+(7*3)+(6*8)+(5*9)+(4*1)+(3*6)+(2*5)+(1*1)=180
180 % 10 = 0
So 1338916-51-0 is a valid CAS Registry Number.

1338916-51-0Downstream Products

1338916-51-0Relevant articles and documents

Metal-free 1,5-regioselective azide-alkyne [3+2]-cycloaddition

Kloss, Florian,Koehn, Uwe,Jahn, Burkhard O.,Hager, Martin D.,Goerls, Helmar,Schubert, Ulrich S.

, p. 2816 - 2824 (2012/06/01)

[3+2]-cycloaddition reactions of aromatic azides and silylated alkynes in aqueous media yield 1,5-disubstituted-4-(trimethyl-silyl)-1H-1,2,3-triazoles. The formation of the 1,5-isomer is highly favored in this metal-free cycloaddition, which could be proven by 1D selective NOESY and X-ray investigations. Additionally, DFT calculations corroborate the outstanding favoritism regarding the 1,5-isomer. The described method provides a simple alternative protocol to metal-catalyzed "click chemistry" procedures, widening the scope for regioselective heavy-metal-free synthetic applications.

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 1338916-51-0