444863
  -OEChem-03010813462D

  6  5  0     0  0  0  0  0  0999 V2000
    1.5449    0.2649    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.4549   -0.5849    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.5449   -0.5849    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.5730   -0.5849    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3669   -0.5849    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.6180   -0.5849    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  3  2  0  0  0  0
  2  3  1  0  0  0  0
  3  4  1  0  0  0  0
  4  5  3  0  0  0  0
  5  6  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
444863

> <PUBCHEM_SUBSTANCE_VERSION>
2

> <PUBCHEM_EXT_DATASOURCE_NAME>
DTP/NCI

> <PUBCHEM_EXT_DATASOURCE_REGID>
174116

> <PUBCHEM_SUBSTANCE_COMMENT>
DTP/NCI from molfile.  Release-June 2007.
Structure Evaluation:Consistent with Molecular Formula.
Deposition record created from database webdb on host dtpiv1.ncifcrf.gov on Feb 22, 2008

> <PUBCHEM_SUBSTANCE_SYNONYM>
1-Propynecarboxylic acid
2-Butynoic acid
3-Methylpropiolic acid
590-93-2
NSC174116
Tetrolic acid

> <PUBCHEM_GENERIC_REGISTRY_NAME>
590-93-2

> <PUBCHEM_XREF_EXT_ID>
174116

> <PUBCHEM_EXT_DATASOURCE_URL>
http://dtp.nci.nih.gov/

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://dtp.nci.nih.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=174116

> <PUBCHEM_CID_ASSOCIATIONS>
68535  1

$$$$