Welcome to LookChem.com Sign In|Join Free

CAS

  • or

868620-36-4

Post Buying Request

868620-36-4 Suppliers

Recommended suppliersmore

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

868620-36-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 868620-36-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,8,6,2 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 868620-36:
(8*8)+(7*6)+(6*8)+(5*6)+(4*2)+(3*0)+(2*3)+(1*6)=204
204 % 10 = 4
So 868620-36-4 is a valid CAS Registry Number.

868620-36-4Downstream Products

868620-36-4Relevant articles and documents

A modified, economical and efficient synthesis of variably substituted pyrazolo[4,3-d]pyrimidin-7-ones

Khan, Khalid Mohammed,Maharvi, Ghulam Murtaza,Choudhary, Muhammad Iqbal,Atta-Ur-Rahman,Perveen, Shahnaz

, p. 1085 - 1093 (2007/10/03)

1-Methyl-3-propyl-1H-pyrazole-5-carboxylic acid (3) was exclusively brominated at the 4-position by bromine in the dark. Brominated product 8 was then converted into 1-methyl-3-propyl-1H-pyrazole-5-carboxamide 9 by successive treatment with thionyl chloride and ammonium hydroxide. Carboxamide 9 was treated with various aroyl amides under microwave (MW) irradiation to afford 4-aroylamino-1-methyl-3-propyl-1H-pyrazole-5-carboxamides 10-22 and 5-aryl-1-methyl-3-propyl-1,6-dihydro-1H-pyrazolo[4,3-d]pyrimidin-7-ones 23-35. The 1H-pyrazole-5-carboxamides 10-22 were also converted to pyrimidinones 23-35 either by conventional heating or by MW irradiation. However, MW irradiation method gives excellent yields in very short time.

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 868620-36-4