6553-03-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6553-03-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,5 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6553-03:
(6*6)+(5*5)+(4*5)+(3*3)+(2*0)+(1*3)=93
93 % 10 = 3
So 6553-03-3 is a valid CAS Registry Number.
6553-03-3Relevant academic research and scientific papers
A new preparative ring expansion for bicyclic ketones. Homoketonization of cyclopropoxide analogs
Hoyano, Yumiko,Patel Vijay,Stothers, J. B.
, p. 2730 - 2732 (2007/10/02)
Homoketonization of some readily prepared cyclopropoxides affords a new synthetic method for ring expansion of the and ring systems.