Welcome to LookChem.com Sign In|Join Free

CAS

  • or

309942-99-2

Post Buying Request

309942-99-2 Suppliers

Recommended suppliersmore

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

309942-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309942-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,9,4 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 309942-99:
(8*3)+(7*0)+(6*9)+(5*9)+(4*4)+(3*2)+(2*9)+(1*9)=172
172 % 10 = 2
So 309942-99-2 is a valid CAS Registry Number.

309942-99-2Downstream Products

309942-99-2Relevant articles and documents

Reaction of 7-(2-mesyloxy-2-phenylethyl)theophylline with amines: Synthesis of 1,2,3,6-tetrahydro-6-imino-2-oxo-7H-purine derivatives

Kozai, Shigetada,Ogimoto, Kyoko,Maruyama, Tokumi

, p. 7685 - 7690 (2007/10/03)

Theophylline was converted to 7-(2-phenyl-2-methanesulfonyloxy)ethyl congener and the product was treated with ammonia or primary amines in a mixture solution of water and organic solvents. Two products were proven to be the styrene analogue and 7-(2-amino-2-phenylethyl)theophylline. The structure of the third product was elucidated as the 1,2,3,6-tetrahydro-6-imino-2-oxo-7H-purine derivatives by spectroscopic analysis including HMBC correlation and X-ray crystallography. (C) 2000 Elsevier Science Ltd.

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 309942-99-2