Welcome to LookChem.com Sign In|Join Free

CAS

  • or

188777-54-0

Post Buying Request

188777-54-0 Suppliers

Recommended suppliersmore

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

188777-54-0 Usage

Chemical Properties

light beige crystalline powder

Check Digit Verification of cas no

The CAS Registry Mumber 188777-54-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,7,7 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 188777-54:
(8*1)+(7*8)+(6*8)+(5*7)+(4*7)+(3*7)+(2*5)+(1*4)=210
210 % 10 = 0
So 188777-54-0 is a valid CAS Registry Number.
InChI:InChI=1/C17H26N2O5S/c1-17(2,3)24-16(22)18-19(12-13-8-6-5-7-9-13)14(15(20)21)10-11-25(4)23/h5-9,14H,10-12H2,1-4H3,(H,18,22)(H,20,21)/p-1/t14-,25+/m0/s1

188777-54-0Downstream Products

188777-54-0Relevant articles and documents

Electrophilic Amination of Amino Acids with N-Boc-oxaziridines: Efficient Preparation of N-Orthogonally Diprotected Hydrazino Acids and Piperazic Acid Derivatives

Hannachi, Jean-Christophe,Vidal, Joelle,Mulatier, Jean-Christophe,Collet, Andre

, p. 2367 - 2373 (2007/10/03)

A general two-step preparation of enantiopure Nα,N β-orthogonally diprotected α-hydrazino acids 1 is developed on a multigram scale. The key reaction is the efficient electrophilic amination of N-benzyl amino acids 6 with N-Boc-oxaziridine 7 and accommodates various functional groups encountered in side chains of amino acids. The cyclic 2,3,4,5-tetrahydro-3-pyridazine carboxylic acid (piperazic acid) derivatives 2 and 3 or the cyclic 3,4-dihydro-3-pyrazolecarboxylate 4 are conveniently prepared from glutamic acid or aspartic acid via orthogonally diprotected α-hydrazino acids 1m and 1n.

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 188777-54-0