Welcome to LookChem.com Sign In|Join Free

CAS

  • or

186179-24-8

Post Buying Request

186179-24-8 Suppliers

Recommended suppliersmore

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

186179-24-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186179-24-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,1,7 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 186179-24:
(8*1)+(7*8)+(6*6)+(5*1)+(4*7)+(3*9)+(2*2)+(1*4)=168
168 % 10 = 8
So 186179-24-8 is a valid CAS Registry Number.

186179-24-8Relevant articles and documents

A novel synthesis of the macrocyclic spermidine alkaloid (+)-(S)-dihydroperiphylline

Sergeyev, Sergey A.,Hesse, Manfred

, p. 161 - 167 (2002)

A novel, short, and highly stereoselective synthesis of the macrocyclic spermidine alkaloid (+)-(S)-dihydroperiphylline (15) is described. The key synthetic steps were the stereoselective addition of the chiral amine 1 to the cinnamate 2 and cyclization o

178. Electrospray-ionization mass spectrometry part III: Acid-catalyzed isomerization of N,N′-bis[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]spermidines by the Zip reaction

Bigler, Laurent,Schnider, Christian F.,Hu, Wenqing,Hesse, Manfred

, p. 2152 - 2163 (2007/10/03)

The electrospray tandem mass spectra (ESI-MS/MS) of the three N,N′-bis[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]spermidines 1-3 displayed the same fragment-ion signals. These isomers could not be differentiated by ESI-MS/MS, since their fragmentation patterns are similar. (E,E)-N-(3-[ 15N]Aminopropyl)-3,3′-bis(4-hydroxyphenyl)-N,N′-(butane- 1,4-diyl)bis[prop-2-enamide] ([15N(1)]-1) was synthesized in order to get further information about the fragmentation mechanisms. The comparison of the ESI-MS/MS of 1 and [15N(1)]-1 revealed a transamidation, the Zip reaction, under mass-spectral conditions of the [1 + H]+ ions. Because of this reaction, the three isomers 1-3 could not be distinguished.

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 186179-24-8