Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1428739-57-4

Post Buying Request

1428739-57-4 Suppliers

Recommended suppliersmore

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

1428739-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1428739-57-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,8,7,3 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1428739-57:
(9*1)+(8*4)+(7*2)+(6*8)+(5*7)+(4*3)+(3*9)+(2*5)+(1*7)=194
194 % 10 = 4
So 1428739-57-4 is a valid CAS Registry Number.

1428739-57-4Downstream Products

1428739-57-4Relevant articles and documents

Catalytic activity of dithioic acid copper complexes in the alkyne-azide cycloaddition

Velasco, Bayardo E.,Lopez-Tellez, Gustavo,Gonzalez-Rivas, Nelly,Garcia-Orozco, Ivan,Cuevas-Yanez, Erick

, p. 292 - 299 (2013/06/05)

Diverse dithioic acid copper complexes exhibit a high catalytic activity in the copper-catalyzed alkyne-azide cycloaddition using several solvents under different temperatures, showing a high efficiency with only 0.005 mmol catalyst/mmol alkyne or less. A dithioic acid copper complex derived from acetophenone was selected and used as the catalyst in the preparation of a library of 1,4-disubstituted-1,2,3-triazoles. This process occurred in high yields and good functional group tolerance.

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 1428739-57-4