Welcome to LookChem.com Sign In|Join Free

CAS

  • or

441-81-6

Post Buying Request

441-81-6 Suppliers

Recommended suppliersmore

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

441-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 441-81-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,4 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 441-81:
(5*4)+(4*4)+(3*1)+(2*8)+(1*1)=56
56 % 10 = 6
So 441-81-6 is a valid CAS Registry Number.

441-81-6Relevant articles and documents

Divergent Synthesis of 1H-Indazoles and 1H-Pyrazoles from Hydrazones via Iodine-Mediated Intramolecular Aryl and sp3 C–H Amination

Wei, Wei,Wang, Zhen,Yang, Xikang,Yu, Wenquan,Chang, Junbiao

, p. 3378 - 3387 (2017/10/09)

A divergent intramolecular C–H amination of hydrazones has been developed employing molecular iodine (I2) as the sole oxidant. The required hydrazone substrates were readily obtained by condensation of hydrazines with the corresponding ketones.

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 441-81-6