Welcome to LookChem.com Sign In|Join Free

CAS

  • or

91446-72-9

Post Buying Request

91446-72-9 Suppliers

Recommended suppliersmore

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

91446-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91446-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,4 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91446-72:
(7*9)+(6*1)+(5*4)+(4*4)+(3*6)+(2*7)+(1*2)=139
139 % 10 = 9
So 91446-72-9 is a valid CAS Registry Number.

91446-72-9Upstream product

91446-72-9Relevant articles and documents

Reactions of Trialkylsilyl Trifluoromethanesulfonates, X. - N-(Trifluoroacetyl)-α,β-didehydro-α-amino Carboxylic Acid Esters from 2--3-(trimethylsiloxy)carboxylic Acid Esters by Elimination of Trimethylsilanol

Seethaler, Toni,Simchen, Gerhard

, p. 11 - 17 (2007/10/02)

α-Amino-β-(trimethylsiloxy)carboxylates 4 are obtained by trimethylsiloxy alkylation of the ketene acetal 1 with aldehydes 2 in the presence of trimethylsilyl triflate (3). β-Elimination of trimethylsilanol from the esters 4 by means of trifluoroacetic acid anhydride (8) or methanesulfonic acid anhydride (15) yields (Z)-didehydro amino acid esters 7.The course of the elimination reaction is studied.

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 91446-72-9