Welcome to LookChem.com Sign In|Join Free
  • or
2,2'-bis-(4-nitro-phenyl)-1,1'-(2-oxy-furazan-3,4-diyl)-bis-ethanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21443-57-2

Post Buying Request

21443-57-2 Suppliers

Recommended suppliers

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

21443-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21443-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21443-57:
(7*2)+(6*1)+(5*4)+(4*4)+(3*3)+(2*5)+(1*7)=82
82 % 10 = 2
So 21443-57-2 is a valid CAS Registry Number.

21443-57-2Downstream Products

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 Customer Service

What can I do for you?
Get Best Price

Get Best Price for 21443-57-2