@Test(expected = CDKException.class)
public void seaborgiumMassDelta() throws Exception {

    try (InputStream in = getClass().getResourceAsStream("seaborgium.mol");
         MDLV2000Reader mdlr = new MDLV2000Reader(in, Mode.STRICT)) {
        IAtomContainer mol = mdlr.read(new AtomContainer());
    }
}