Welcome to LookChem.com Sign In|Join Free

CAS

  • or

121058-83-1

Post Buying Request

121058-83-1 Suppliers

Recommended suppliersmore

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

121058-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121058-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,0,5 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121058-83:
(8*1)+(7*2)+(6*1)+(5*0)+(4*5)+(3*8)+(2*8)+(1*3)=91
91 % 10 = 1
So 121058-83-1 is a valid CAS Registry Number.

121058-83-1Relevant articles and documents

THE USE OF LABILE BASE PROTECTING GROUPS IN OLIGORIBONUCLEOTIDE SYNTHESIS

Chaix, Carole,Molko, Didier,Teoule, Robert

, p. 71 - 74 (1989)

The use of phenoxyacetyl group for the protection of the exocyclic amino function of purine bases and acetyl group for cytosine in oligonucleotide synthesis by the cyanoethylphosphoramidite approach is described.A side reaction - i.e. partial replacement of phenoxyacetyl group of protected guanines by acetyl group - was observed during the capping step.It can be avoided by the use of phenoxyacetic anhydride in place of acetic anhydride.

High yield protection of purine ribonucleosides for phosphoramidite RNA synthesis

Song, Quanlai,Wang, Weimin,Fischer, Artur,Zhang, Xiaohu,Gaffney, Barbara L.,Jones, Roger A.

, p. 4153 - 4156 (2007/10/03)

We report high yield procedures for protection of purine ribonucleosides based on a reaction which allows concomitant highly regiospecific 2'-silylation and 3'-phosphitylation. Subsequent cleavage of the H-phosphonate monoester moiety without silyl migration provides intermediates ready for phosphitylation by standard methods to give fully protected phosphoramidites.

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 121058-83-1