94459-08-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 94459-08-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,4,5 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 94459-08:
(7*9)+(6*4)+(5*4)+(4*5)+(3*9)+(2*0)+(1*8)=162
162 % 10 = 2
So 94459-08-2 is a valid CAS Registry Number.
94459-08-2Relevant articles and documents
A Convenient Synthesis of 4-Unsubstituted β-Lactams
Overman, Larry E.,Osawa, Tatsushi
, p. 1698 - 1701 (2007/10/02)
The reaction of lithium ester enolates with N-(cyanomethyl)amines affords 4-unsubstituted β-lactams in good yields, see eq 1.The N-1 substituent can be varied widely, as can the C-3 substituents, which can be H, alkyl, SPh, NH2, or NHCOR.The preparation o
