Welcome to LookChem.com Sign In|Join Free

CAS

  • or

143947-37-9

Post Buying Request

143947-37-9 Suppliers

Recommended suppliersmore

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

143947-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143947-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,9,4 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 143947-37:
(8*1)+(7*4)+(6*3)+(5*9)+(4*4)+(3*7)+(2*3)+(1*7)=149
149 % 10 = 9
So 143947-37-9 is a valid CAS Registry Number.

143947-37-9Relevant articles and documents

Regioselective Deacylation of 2,4-Diacylaminopyrimidine Derivatives by Lewis Acids and Crystal Structures of Two Products

Griffin, Roger J.,Lowe, Philip R.

, p. 1811 - 1820 (2007/10/02)

Deacylation of 2,4-diacylamino derivatives of pyrimethamine and related diaminopyrimidines with tin(II) chloride or zinc chloride, in ethanol or propan-2-ol, affords 2-acyl-4-aminopyrimidines exclusively.Regioselective 4-deacylation was observed by 1H NMR spectroscopy and established by crystallographic analysis of the 2,4-dipropionylpyrimidine 11 and the corresponding 4-amino-2-propionylpyrimidine deacylation product 17.The latter exists in the solid state as an unusual base-pair dimer linked by two pairs of equivalent hydrogen bonds.

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 143947-37-9