Welcome to LookChem.com Sign In|Join Free

CAS

  • or

58689-13-7

Post Buying Request

58689-13-7 Suppliers

Recommended suppliersmore

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

58689-13-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58689-13-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,6,8 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 58689-13:
(7*5)+(6*8)+(5*6)+(4*8)+(3*9)+(2*1)+(1*3)=177
177 % 10 = 7
So 58689-13-7 is a valid CAS Registry Number.

58689-13-7Relevant articles and documents

An expedient route to a versatile intermediate for the stereoselective synthesis of all-trans-retinoic acid and beta-carotene

Babler,Schlidt

, p. 7697 - 7700 (2007/10/02)

Base-catalyzed isomerization of vinyl phosphonate 5 afforded the corresponding allylic phosphonate (6) as the sole product. Horner-Emmons olefination of ethyl trans-3-methyl-4-oxo-2-butenoate with the ylide derived from 6 concludes a facile synthesis of t

175. The Synthesis of β,γ- and α,β-Unsaturated Aldehydes via Polyene Epoxides

Rosenberger, Michael,Jackson, William,Saucy, Gabriel

, p. 1665 - 1674 (2007/10/02)

A substitute for the Darzens glycidic ester synthesis for converting unsaturated ketones or aldehydes into the homologated β,γ- or α,β-unsaturated aldehydes employing sulfur ylides is desribed.The carbonyl group is converted into the unsaturated oxirane which is then rearranged to the new aldehyde.High yields of isomerically pure aldehydes are available by this method and the process is of practical importance in the conversion of β-ionone into the β-C14-aldehyde, a key intermediate in the Isler synthesis of vitamin A.The efficient preparation of α- and β-cyclocitral by the novel process is also described.

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 58689-13-7