Welcome to LookChem.com Sign In|Join Free

CAS

  • or

540508-54-1

Post Buying Request

540508-54-1 Suppliers

Recommended suppliersmore

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

540508-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 540508-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,5,0 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 540508-54:
(8*5)+(7*4)+(6*0)+(5*5)+(4*0)+(3*8)+(2*5)+(1*4)=131
131 % 10 = 1
So 540508-54-1 is a valid CAS Registry Number.

540508-54-1Relevant articles and documents

Synthesis of functionalized arylpyridines and -pyrimidines by domino [4+2]/retro [4+2] cycloadditions of electron-rich dienes with alkynylpyridines and -pyrimidines

Abid, Obaid-Ur-Rahman,Nawaz, Muhammad,Ibad, Muhammad Farooq,Khera, Rasheed Ahmad,Iaroshenko, Viktor,Langer, Peter

experimental part, p. 2185 - 2191 (2011/04/26)

Aryl-substituted pyridines and pyrimidines were prepared by [4+2] cycloadditions of alkynyl-substituted pyridines and -pyrimidines with electron-rich dienes. The reactions proceed by formation of a bridged cycloadduct and subsequent thermal extrusion of ethylene. The pyridine moiety plays a crucial role for the success of the reaction.

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 540508-54-1