Welcome to LookChem.com Sign In|Join Free

CAS

  • or

1621679-05-7

Post Buying Request

1621679-05-7 Suppliers

Recommended suppliersmore

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

1621679-05-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1621679-05-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,6,7 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1621679-05:
(9*1)+(8*6)+(7*2)+(6*1)+(5*6)+(4*7)+(3*9)+(2*0)+(1*5)=167
167 % 10 = 7
So 1621679-05-7 is a valid CAS Registry Number.

1621679-05-7Relevant articles and documents

For the improvement of the [...] intermediates preparation method

-

Paragraph 0253-0255, (2018/02/04)

The invention relates to an improved preparation method for the intermediate 4, 6-dihalogen-2-(propythio)pyrimidine-5-amine used for preparing the anticoagulation drug ticagrelor, and application of the intermediate in preparation of ticagrelor. By use of a phase transfer reagent, the method reduces the halogenating reagent consumption and emission and treatment of toxic substances. Also, the obtained product has high yield and good purity. Thus, the method is a greener and more economical preparation method more suitable for industrial application.

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 1621679-05-7