Welcome to LookChem.com Sign In|Join Free

CAS

  • or

128252-48-2

Post Buying Request

128252-48-2 Suppliers

Recommended suppliersmore

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

128252-48-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128252-48-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,5 and 2 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128252-48:
(8*1)+(7*2)+(6*8)+(5*2)+(4*5)+(3*2)+(2*4)+(1*8)=122
122 % 10 = 2
So 128252-48-2 is a valid CAS Registry Number.

128252-48-2Relevant articles and documents

Asymmetric Diels-Alder Cycloadditions with Chiral Carbamoyl Dienophiles

Defoin, Albert,Brouillard-Poichet, Agnes,Streith, Jacques

, p. 109 - 123 (1992)

Chiral acylnitroso dienophiles 14, which were obtained from L-proline and from D-mandelic acid, reacted with cyclohexa-1,3-diene to give the expected diastereoisomers 15 and 16 (Scheme 2 and Table 1).The d.e. values for these Diels-Alder reactions were moderate; they are related to the molecular stiffness of the dienophiles.The absolute configuration of the major cycloadducts was interpreted in terms of HOMO/LUMO interactions, the approach being 'endo' and the acylnitroso dienophiles reacting from their s-cis-conformation.

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 128252-48-2