Welcome to LookChem.com Sign In|Join Free

CAS

  • or

90128-14-6

Post Buying Request

90128-14-6 Suppliers

Recommended suppliersmore

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

90128-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90128-14-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,2 and 8 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90128-14:
(7*9)+(6*0)+(5*1)+(4*2)+(3*8)+(2*1)+(1*4)=106
106 % 10 = 6
So 90128-14-6 is a valid CAS Registry Number.

90128-14-6Relevant articles and documents

Electrocyclic Aromatic Substitution by the Diazo Group. Part 4. Periselectivity Studies on the Cyclisation of 1-Thienyl-3-diazoalkenes: a Route to 3H-Thienodiazepines

Miller, Thomas K,Sharp, John T

, p. 223 - 228 (2007/10/02)

In the cyclisation reactions of the 1-thienyl-3-diazoalkenes (19) and (23) the thiophene ring is more reactive to 1,7 (8?-electron) electrocyclic substitution that the analogous arene ring in the 1-phenyl-3-diazoalkene (5).The 3,3-di-2-thienyl-3H-pyrazole

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 90128-14-6