Welcome to LookChem.com Sign In|Join Free

CAS

  • or

223123-49-7

Post Buying Request

223123-49-7 Suppliers

Recommended suppliersmore

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

223123-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 223123-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,1,2 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 223123-49:
(8*2)+(7*2)+(6*3)+(5*1)+(4*2)+(3*3)+(2*4)+(1*9)=87
87 % 10 = 7
So 223123-49-7 is a valid CAS Registry Number.

223123-49-7Downstream Products

223123-49-7Relevant articles and documents

A new synthesis of substituted imidazo[4,5-£]pyridinones by reductive cyclisation of 4-nitro-l//-imidazol-5-yl di-, and tri-carbonyl compounds

Tennant, George,Wallis, Christopher J.,Weaver, George W.

, p. 629 - 640 (2007/10/03)

A new synthetic route to the biologically important imidazo[4,5-6]pyridine ring system is described. An efficient method for the condensation of 4-nitro-l//-imidazole-5-carbonyl chlorides with activated methylene compounds using magnesium ethoxide has been developed. The imidazolyl di-, and tri-carbonyl compounds formed in this process were found to be good substrates for reductive cyclisation to the little studied 4-hydroxyimidazo[4,5-i]pyridinones by either catalytic hydrogenation over palladium or by treatment with alkaline sodium borohydride in the presence of palladium. Highly oxygenated derivatives of 1-deazapurines are thus readily available by this method.

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 223123-49-7