Welcome to LookChem.com Sign In|Join Free

CAS

  • or

148729-71-9

Post Buying Request

148729-71-9 Suppliers

Recommended suppliersmore

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

148729-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148729-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,7,2 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 148729-71:
(8*1)+(7*4)+(6*8)+(5*7)+(4*2)+(3*9)+(2*7)+(1*1)=169
169 % 10 = 9
So 148729-71-9 is a valid CAS Registry Number.

148729-71-9Relevant articles and documents

-

Dormoy, Jean-Robert,Heymes, Alain

, p. 2885 - 2914 (2007/10/02)

Total synthesis of modified ellipticines 1c and 1f is described from 2-chloronicotinic acid and respectively 5-methoxy -indole and 5-azaindole in 11 to 13 steps with overall yields of 11% and 18%. A new route to 5-azaindole has also been developed. The synthetic strategy calls for frequent use of homo- and hetero aromatic metallation reactions necessiting resolution of problems associated with the presence of the pyridine ring. With respect to the numerous synthesis described in the litterature, the originality of this approach resides above all in the formation of ring C in basic medium.1 such conditions being dictated by the presence of the pyridine A ring in the case of 1f. Both synthesis have been extrapolated to produce several kilogrammes of final product. That first part deals with the preparation of the precursors.

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 148729-71-9