Welcome to LookChem.com Sign In|Join Free

CAS

  • or

389615-05-8

Post Buying Request

389615-05-8 Suppliers

Recommended suppliersmore

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

389615-05-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 389615-05-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,6,1 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 389615-05:
(8*3)+(7*8)+(6*9)+(5*6)+(4*1)+(3*5)+(2*0)+(1*5)=188
188 % 10 = 8
So 389615-05-8 is a valid CAS Registry Number.

389615-05-8Downstream Products

389615-05-8Relevant articles and documents

Process for the preparation of derivative of 4-amino-3-hydroxypyrrole-2-carboxylic acid

-

, (2008/06/13)

Novel processes and intermediates are provided for the synthesis of derivatives of 4-amino-3-hydroxypyrrole-2-carboxylic acids that are useful as monomers for polyamides capable of binding dsDNA. According to one preferred reaction scheme, an alkyl alkoxymethylene nitroacetate (Formula VIII) is prepared by reaction of a trialkyl orthoformate or orthoacetate with a nitroacetate ester in the presence of a carboxylic anhydride. The compound of Formula VIII is condensed with an N-substituted glycine to yield an N-substituted (2-nitro-2-alkoxycarbonyl)vinyl glycinate ester (Formula VII). Ring closure in the presence of an alkali metal alkoxide yields a 4-nitro-3-hydroxypyrrole-2-carboxylic ester (Formula V). After blocking of the 3-hydroxy group to produce a further intermediate (Formula IV), the 4-nitro group is reduced to a 4-amino group (Formula III), and the 4-amino group is then blocked by reaction with a dicarbonate diester to produce the fully blocked intermediate (Formula II). Saponification of the 2-carboxylic acid ester yields a monomer having a free 2-carboxylic ester moiety (Formula I).

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 389615-05-8