Welcome to LookChem.com Sign In|Join Free
  • or
(S)-4-Benzyloxycarbonylamino-3-oxo-pentanoic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

191731-19-8

Post Buying Request

191731-19-8 Suppliers

Recommended suppliers

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

191731-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191731-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,7,3 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 191731-19:
(8*1)+(7*9)+(6*1)+(5*7)+(4*3)+(3*1)+(2*1)+(1*9)=138
138 % 10 = 8
So 191731-19-8 is a valid CAS Registry Number.

191731-19-8Relevant academic research and scientific papers

A simple, stereoselective synthesis of ketomethylene dipeptide isosteres

Hoffman, Robert V.,Tao, Junhua

, p. 7119 - 7126 (1997)

An exceedingly simple, general, and stereoselective method for the preparation of ketomethylene dipeptide isosteres (5-(carbobenzyloxyamino)-2-alkyl-γ-ketoesers) from Cbz-protected amino acids and scalemic-2-triflyloxy esters has been developed. The method is short (three steps), efficient, and highly diastereoselective and enantioselective.

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 191731-19-8