Welcome to LookChem.com Sign In|Join Free

CAS

  • or

204254-66-0

Post Buying Request

204254-66-0 Suppliers

Recommended suppliersmore

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

204254-66-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204254-66-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,2,5 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 204254-66:
(8*2)+(7*0)+(6*4)+(5*2)+(4*5)+(3*4)+(2*6)+(1*6)=100
100 % 10 = 0
So 204254-66-0 is a valid CAS Registry Number.

204254-66-0Relevant articles and documents

Preparation method of dacomitinib intermediate

-

Paragraph 0103-0105; 0110; 0111, (2021/04/28)

The invention provides a preparation method of a dacomitinib intermediate. The preparation method comprises steps shown in the specification. The invention provides the novel preparation method of the dacomitinib key intermediate, the intermediate is short in synthetic route, mild in reaction condition, short in reaction time and simple in separation and purification method, raw materials and reagents are conventional reagents, the cost is low, the yield of the prepared product is high, and the method is very beneficial to industrial production and popularization and has a good application prospect.

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 204254-66-0