84257-15-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84257-15-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,5 and 7 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84257-15:
(7*8)+(6*4)+(5*2)+(4*5)+(3*7)+(2*1)+(1*5)=138
138 % 10 = 8
So 84257-15-8 is a valid CAS Registry Number.
84257-15-8Relevant articles and documents
Synthesis and Oxidative Cyclization of 3-(1-Cycloalkenyl)tropolones
Imafuku, Kimiaki,Inoue, Kyoko
, p. 3242 - 3244 (1982)
3-(1-Cyclopentenyl)-, 3-(1-cyclohexenyl)-, and 3-(1-cycloheptenyl)tropolones (3a, 3b, and 3c) were prepared by the hydrolysis of cycloadducts of dichloroketene to cyclopentylidene-, cyclohexylidene-, and cycloheptylidenecyclopentadiene, respectively.Compo
