Welcome to LookChem.com Sign In|Join Free

CAS

  • or

53017-51-9

Post Buying Request

53017-51-9 Suppliers

Recommended suppliersmore

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

53017-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53017-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,0,1 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53017-51:
(7*5)+(6*3)+(5*0)+(4*1)+(3*7)+(2*5)+(1*1)=89
89 % 10 = 9
So 53017-51-9 is a valid CAS Registry Number.

53017-51-9Relevant articles and documents

Syntheses of Substituted L- and D-Tryptophans

Irie, Kunihiko,Ishida, Akihiko,Nakamura, Tohru,Oh-ishi, Tokuro

, p. 2126 - 2139 (2007/10/02)

Several 5-substituted nb-methoxycarbonyl-L- and -D-tryptophan derivatives were synthesized from proline by a new route involving electrochemical oxidation, as well as by the known procedures.Removal of the Nb-methoxycarbonyl group was accomplished by treatment with Me3SiI in refluxing chloroform, then alkaline hydrolysis of the methyl esters afforded 5-substituted L- and D-tryptophans with high optical purities.Keywords - L-tryptophan 5-substituted; D-tryptophan 5-substituted; anodic oxidation; N-methoxycarbonyl group deprotection; Fischer indole synthesis; iodotrimethylsilane

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 53017-51-9