Welcome to LookChem.com Sign In|Join Free

CAS

  • or

190256-63-4

Post Buying Request

190256-63-4 Suppliers

Recommended suppliersmore

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

190256-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190256-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,2,5 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 190256-63:
(8*1)+(7*9)+(6*0)+(5*2)+(4*5)+(3*6)+(2*6)+(1*3)=134
134 % 10 = 4
So 190256-63-4 is a valid CAS Registry Number.

190256-63-4Downstream Products

190256-63-4Relevant articles and documents

Enantioselective protonation of samarium enolates derived from α- heterosubstituted ketones and lactone by SmI2-mediated reduction

Nakamura, Yutaka,Takeuchi, Seiji,Ohgo, Yoshiaki,Yamaoka, Makoto,Yoshida, Akihiro,Mikami, Koichi

, p. 4595 - 4620 (2007/10/03)

SmI2-mediated reductive cleavage of α-heterosubstituents of α-alkyl or α-aryl ketones and lactone gave the corresponding 'thermodynamic samarium enolates'. Enantioselective protonation of the samarium enolates with C2- symmetric chiral diols afforded the corresponding ketones and lactone in moderate to high enantioselectivities.

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 190256-63-4