99477-30-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99477-30-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,7 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99477-30:
(7*9)+(6*9)+(5*4)+(4*7)+(3*7)+(2*3)+(1*0)=192
192 % 10 = 2
So 99477-30-2 is a valid CAS Registry Number.
99477-30-2Relevant academic research and scientific papers
Intramolecular (2 + 2) Cycloadditions of Phenoxyketenes
Brady, William T.,Giang, Y. Frank
, p. 5177 - 5179 (2007/10/02)
The intramolecular (2 + 2) cycloaddition of phenoxyketenes to alkenyl groups provides an efficient route to polycyclic cyclobutanones. (o-Vinylphenoxy)- and (o-allylphenoxy)ketenes were prepared from the corresponding acid chlorides by treatment with trie