HMDB0252092
     RDKit          3D
Ethynyl
  3  2  0  0  0  0  0  0  0  0999 V2000
    1.1548    0.1908    0.0000 C   0  0  0  0  0  3  0  0  0  0  0  0
   -0.0493    0.2648    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.1054    0.3482    0.0000 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  3  0
  2  3  1  0
M  RAD  1   1   2
M  END