Welcome to LookChem.com Sign In|Join Free

CAS

  • or

57193-34-7

Post Buying Request

57193-34-7 Suppliers

Recommended suppliersmore

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

57193-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57193-34-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,9 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57193-34:
(7*5)+(6*7)+(5*1)+(4*9)+(3*3)+(2*3)+(1*4)=137
137 % 10 = 7
So 57193-34-7 is a valid CAS Registry Number.

57193-34-7Relevant articles and documents

Reduction of Heterocycles with Nickel-Aluminum Alloy

Lunn, George

, p. 1043 - 1046 (2007/10/02)

Pyrazines, pyridazines, isoxazoles, oxazole, 4-methylpyrimidine, and indole are reduced by nickel-aluminum alloy in potassium hydroxide solution.The reaction is simple to carry out and does not require special apparatus or hydrogen atmospheres.The products were the fully hydrogenated species although benzene rings were not attacked. 4-Methylpyrimidine gave 1,3-diaminobutane and oxazole gave 2-(methylamino)ethanol.It was found that the reaction frequently exhibited an induction period.

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 57193-34-7