Welcome to LookChem.com Sign In|Join Free

CAS

  • or

190434-51-6

Post Buying Request

190434-51-6 Suppliers

Recommended suppliersmore

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

190434-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190434-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,4,3 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 190434-51:
(8*1)+(7*9)+(6*0)+(5*4)+(4*3)+(3*4)+(2*5)+(1*1)=126
126 % 10 = 6
So 190434-51-6 is a valid CAS Registry Number.

190434-51-6Relevant articles and documents

Synthesis of 1,2-diketones from β-keto nitriles via a protection-oxidative-decyanation-deprotection protocol

Liu, Yu,Yun, Xiliu,Zhang-Negrerie, Daisy,Huang, Jianhui,Du, Yunfei,Zhao, Kang

supporting information; experimental part, p. 2984 - 2994 (2011/11/04)

A variety of 1,2-diketones were prepared from -keto nitriles via a three-step protocol including the protection of the ketones with methoxyamine, oxidative decyanation, and microwave-assisted deprotection in the final step. This approach provides a novel and efficient access to a wide scope of symmetric and unsymmetric 1,2-diketones using molecular oxygen as the oxidant in the decyanation process. Georg Thieme Verlag Stuttgart - New York.

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 190434-51-6