Welcome to LookChem.com Sign In|Join Free

CAS

  • or

81268-07-7

Post Buying Request

81268-07-7 Suppliers

Recommended suppliersmore

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

81268-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81268-07-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,6 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81268-07:
(7*8)+(6*1)+(5*2)+(4*6)+(3*8)+(2*0)+(1*7)=127
127 % 10 = 7
So 81268-07-7 is a valid CAS Registry Number.

81268-07-7Relevant articles and documents

Synthesis and Valence Tautomerism of 4(8)-Monosubstituted Homotropilidenes

Maas, Gerhard,Kettenring, Juergen K.

, p. 627 - 644 (2007/10/02)

A synthesis of 4(8)-monosubstituted homotropilidenes (bicycloocta-2,5-dienes) is described, which starts from the Diels-Alder adducts 10b - e of 7-monosubstituted cycloheptatrienes and diazomethane.The same synthetic goal is reached by starting from the Diels-Alder adduct 10a of cycloheptatriene itself and diazoethane, though with the opposite substituent position on the homotropilidene framework.Along this route, endo-8-methyl-, endo-8-isopropyl-, endo-8-phenyl- and exo-8-methylhomotropilidene have been made which display a more or less pronounced valence tautomerism.

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 81268-07-7