Welcome to LookChem.com Sign In|Join Free

CAS

  • or

139215-50-2

Post Buying Request

139215-50-2 Suppliers

Recommended suppliersmore

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

139215-50-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139215-50-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,1 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139215-50:
(8*1)+(7*3)+(6*9)+(5*2)+(4*1)+(3*5)+(2*5)+(1*0)=122
122 % 10 = 2
So 139215-50-2 is a valid CAS Registry Number.

139215-50-2Downstream Products

139215-50-2Relevant articles and documents

N-bis-silylation of α-amino acids: "benzostabases" as amino protecting group

Cavelier-Frontin, Florine,Jacquier, Robert,Paladino, Joseph,Verducci, Jean

, p. 9807 - 9822 (2007/10/02)

N-Bis-trimethylsilylation of α-amino acids using the powerful trimethylsilyl triflate reagent is difficult, and is rendered impossible in the case of bulky side-chains (valine). However, favorable entropy changes resulting from a cyclization reaction allow the formation of "benzostabase" N-diprotections regardless of the side-chain bulk.

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 139215-50-2