Welcome to LookChem.com Sign In|Join Free

CAS

  • or

20072-97-3

Post Buying Request

20072-97-3 Suppliers

Recommended suppliersmore

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

20072-97-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20072-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,7 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20072-97:
(7*2)+(6*0)+(5*0)+(4*7)+(3*2)+(2*9)+(1*7)=73
73 % 10 = 3
So 20072-97-3 is a valid CAS Registry Number.

20072-97-3Relevant articles and documents

Synthesis of modified aldonic acids and studies of their substrate efficiency for dihydroxy acid dehydratase (DHAD)

Limberg, Gerrit,Thiem, Joachim

, p. 349 - 356 (2007/10/03)

Modified aldopentonic and aldohexonic acids were synthesized in order to study the electronic requirements for a successful enzymatic conversion into their corresponding 2-keto 3-deoxy analogues by dihydroxy acid dehydratase (DHAD), an enzyme from the biosynthetic pathway of branched chain amino acids. Analytical tests with the novel artificial substrates (18)-(21) and (27) provided evidence that the amount of conversion could be enhanced by replacement of the hydroxy group at C 4 of L-arabinonic acid (21) with less electron-withdrawing, ambivalent or electron-donating substituents. Modified aldohexonic acids were no substrates for DHAD, perhaps due to less perfect binding to the active site presumably for steric reasons. For 4-deoxy-L-threo-pentonic acid (18) the enzymatic conversion into 3,4-dideoxy-2-ketopentonic acid (29) by DHAD could be achieved on a preparative scale.

Sugar Enolones, XI. 2-Halopentopyranosyl Halides: Preparation, Configurational Elucidation, and Conversion into Enantiomeric Dihydropyranones

Lichtenthaler, Frieder W.,Sakakibara, Tohru,Egert, Ernst

, p. 471 - 488 (2007/10/02)

Addition of chlorine or bromine to the enediol grouping of tribenzoyl-pentenitol 2 exclusively yields cis-adducts, i.e. 1,2-dihalides of α-D-lyxo (4, 6) and β-D-xylo configuration (5, 7).Configurational assignments were based on the titanium tetrahalide-i

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 20072-97-3