Welcome to LookChem.com Sign In|Join Free

CAS

  • or

121676-01-5

Post Buying Request

121676-01-5 Suppliers

Recommended suppliersmore

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

121676-01-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121676-01-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,7 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121676-01:
(8*1)+(7*2)+(6*1)+(5*6)+(4*7)+(3*6)+(2*0)+(1*1)=105
105 % 10 = 5
So 121676-01-5 is a valid CAS Registry Number.

121676-01-5Relevant articles and documents

Experiments towards the Generation of 1,5- and 2,3-Didehydroquadricyclanes

Heywang, Ulrich,Szeimies, Guenter

, p. 121 - 131 (2007/10/02)

Metalation of the (hydroxymethyl)quadricyclanes 7a - c with n-butyllithium in ether is determined mostly by the chelating effect of the CH2O-Li group and only to a lesser extent by the magnitude of the 13C-1H coupling constant of the position to be lithiated in the corresponding quadricyclane derivative.Similar results were obtained for 3-quadricyclanol (20a).Treatment of the bromide 26a, prepared by lithiation of 7b, with strong bases apparently generates the 1,2-didehydroquadricyclane 34.and not the 1,5-didehydroquadricyclane 35.Attempts to convert the dihalide 9 into the 2,3-didehydroquadricyclane 4 were unsuccessful.

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 121676-01-5