Welcome to LookChem.com Sign In|Join Free

CAS

  • or

81197-49-1

Post Buying Request

81197-49-1 Suppliers

Recommended suppliersmore

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

81197-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81197-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,9 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81197-49:
(7*8)+(6*1)+(5*1)+(4*9)+(3*7)+(2*4)+(1*9)=141
141 % 10 = 1
So 81197-49-1 is a valid CAS Registry Number.

81197-49-1Relevant articles and documents

Ketene-S,N-acetals as Synthetic Intermediates for Heterocycles. Reaction of Ketene-S,N-acetals with Aryl Isocyanates

Takahata, Hiroki,Nakajima, Tomoko,Nakano, Masaharu,Tomiguchi, Akira,Yamazaki, Takao

, p. 4299 - 4308 (2007/10/02)

Reaction of ketene-S,N-acetals (1-6), which are useful synthetic intermediates for heterocycles, with aryl isocyanates (7) is described.Annulation of 1-3 and 4-6 with 7 in boiling toluene gave bicyclic (8-10) and monocyclic (11-13) uracil derivatives, res

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 81197-49-1