166273-23-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166273-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,2,7 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 166273-23:
(8*1)+(7*6)+(6*6)+(5*2)+(4*7)+(3*3)+(2*2)+(1*3)=140
140 % 10 = 0
So 166273-23-0 is a valid CAS Registry Number.
166273-23-0Relevant academic research and scientific papers
Preparation and epoxidation of conjugated lactams: Influence of ring size on epoxidation
Li,Smith
, p. 1265 - 1275 (2007/10/02)
α,β-Epoxy-lactams can be prepared from conjugated lactams by treatment with m-chloroperoxybenzoic acid. Good yields are obtained, however, only with 2-pyrrolidinone derivatives. The yield of epoxy-lactam diminishes dramatically as the size of the lactam ring increases.
