Welcome to LookChem.com Sign In|Join Free

CAS

  • or

128721-23-3

Post Buying Request

128721-23-3 Suppliers

Recommended suppliersmore

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

128721-23-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128721-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,2 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128721-23:
(8*1)+(7*2)+(6*8)+(5*7)+(4*2)+(3*1)+(2*2)+(1*3)=123
123 % 10 = 3
So 128721-23-3 is a valid CAS Registry Number.

128721-23-3Relevant articles and documents

SYNTHESIS AND REACTIVITY OF 2-(1,3-DITHIAN-2-YL)INDOLES. III. INFLUENCE OF THE INDOLE PROTECTIVE N-PHENYLSULFONYL GROUP

Rubiralta, Mario,Diez, Anna,Reig, Ignasi,Castells, Josep,Bettiol, Jean-Luc,et al.

, p. 173 - 186 (2007/10/02)

Formation of the anion of 2-(1,3-dithian-2-yl)indoles was shown to be possible when the indole nitrogen is protected by a p-methoxyphenylsulfonyl group.In contrast to the corresponding N-phenylsulfonylindole dithiane 1, the anion of dithiane 2 reacts efficiently with electrophiles.The influence of the indole protective group on the metallation of 2-bis(ethylthio)-methyl-1-(phenylsulfonyl)indole (14) and the corresponding sulfoxide 24 with n-butyllithium is also reported.

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 128721-23-3