Welcome to LookChem.com Sign In|Join Free

CAS

  • or

181053-80-5

Post Buying Request

181053-80-5 Suppliers

Recommended suppliersmore

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

181053-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181053-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,0,5 and 3 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 181053-80:
(8*1)+(7*8)+(6*1)+(5*0)+(4*5)+(3*3)+(2*8)+(1*0)=115
115 % 10 = 5
So 181053-80-5 is a valid CAS Registry Number.

181053-80-5Relevant articles and documents

Stereocontrolled synthesis of acyclic terpenoids via N-ylide [2,3]rearrangement of ammonium salts with the stereodefined isoprene unit

Honda, Kiyoshi,Tabuchi, Masayuki,Kurokawa, Hiroki,Asami, Masatoshi,Inoue, Seiichi

, p. 1387 - 1396 (2007/10/03)

Stereocontrolled elongation of a functionalized isoprene unit on the E or Z terminal methyl of terpenoids was achieved by N-ylide rearrangement of the common ammonium salts under selected reaction conditions. A 1,5-diene or conjugated triene skeleton can be furnished by reductive or oxidative removal of the amino group of the rearrangement product, respectively. As an application to natural-product synthesis, all-(E)-terpenoid (E)-11d and (E,Z)-terpenoid (Z)-11c were converted into β-sinensal and (13Z)-retinol, respectively. General aspects of these transformations and a plausible transition state for the N-ylide rearrangement are discussed.

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 181053-80-5