Welcome to LookChem.com Sign In|Join Free

CAS

  • or

170940-99-5

Post Buying Request

170940-99-5 Suppliers

Recommended suppliersmore

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

170940-99-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170940-99-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,9,4 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 170940-99:
(8*1)+(7*7)+(6*0)+(5*9)+(4*4)+(3*0)+(2*9)+(1*9)=145
145 % 10 = 5
So 170940-99-5 is a valid CAS Registry Number.

170940-99-5Relevant articles and documents

Synthesis of chiral diazanedicarboxylate and diazenedicarboxylate esters: electrophilic amination reactions of achiral ester and amide enolates

Harris, Joanna M.,Bolessa, Evon A.,Mendonca, Aubrey J.,Feng, Sheng-Chu,Vederas, John C.

, p. 1945 - 1950 (2007/10/02)

A series of chiral dialkyl (bornyl, isobornyl, menthyl) diazenedicarboxylates 4a-c were prepared by conversion of the corresponding alcohols into chloroformates, condensation with hydrazine, and oxidation of the corresponding dialkyl diazanedicarboxylates 3a-c with N-bromosuccinimide and pyridine (50-90percent yield).Their reaction with achiral enolates of esters and N,N-dimethyl amides at -70 deg C gave α-hydrazino acid derivatives with little or no stereoselectivity.Analogous amination of chiral oxazolidinone (Evans enolate) anions were highly selective, but were controlled exclusively by enolate geometry.

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 170940-99-5