Welcome to LookChem.com Sign In|Join Free

CAS

  • or

57156-97-5

Post Buying Request

57156-97-5 Suppliers

Recommended suppliersmore

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

57156-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57156-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,5 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57156-97:
(7*5)+(6*7)+(5*1)+(4*5)+(3*6)+(2*9)+(1*7)=145
145 % 10 = 5
So 57156-97-5 is a valid CAS Registry Number.

57156-97-5Downstream Products

57156-97-5Relevant articles and documents

Synthesis of ethyl 5Z,9Z,12Z-octadecatrienoate (ethyl pinolenate) and methyl 12Z,15Z-octadecadienoate

Kaltia, Seppo,Matikainen, Jorma,Ala-Peijari, Maija,Hase, Tapio

, p. 561 - 565 (2008/09/20)

Pinolenic acid (5Z,9Z,12Z-octadecatrienoic acid, 1a), one of the most abundant trienoic fatty acids in nature, is very difficult to obtain in quantity in a pure state from the highly complex mixture of unsaturated tall oil fatty acids. For this reason its chemistry has been little studied when compared to linolenic or linoleic acids. A simple synthesis of esters of 1a and of 12Z,15Z-octadecadienoic acid 3 using the one pot double Wittig procedure is described here. The products of double Wittig reactions were purified by argentation chromatography, and their structural purity was established by 1H-, 13C-NMR and 2D-NMR spectroscopies.

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 57156-97-5