607122
  -OEChem-02060822452D

  8  7  0     0  0  0  0  0  0999 V2000
   -0.9750   -0.9375    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -1.6250    0.1875    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.9708    0.9417    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.9750   -0.1833    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3250    0.1875    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.3250   -0.1833    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.9708    0.1875    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.6167   -0.1833    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1  4  2  0  0  0  0
  2  4  1  0  0  0  0
  3  7  2  0  0  0  0
  4  5  1  0  0  0  0
  5  6  1  0  0  0  0
  6  7  1  0  0  0  0
  7  8  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
607122

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
NIAID

> <PUBCHEM_EXT_DATASOURCE_REGID>
017682

> <PUBCHEM_SUBSTANCE_COMMENT>
NIAID - Anti-HIV/OI Chemical Compound Database
CARBOXYLIC ACIDS

> <PUBCHEM_SUBSTANCE_SYNONYM>
123-76-2
4-Oxopentanoic acid
AIDS-017682
AIDS017682
Levulinic acid

> <PUBCHEM_GENERIC_REGISTRY_NAME>
123-76-2

> <PUBCHEM_XREF_EXT_ID>
017682
AIDS017682

> <PUBCHEM_EXT_DATASOURCE_URL>
http://chemdb.niaid.nih.gov/struct_search/an/an_search.htm

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://chemdb.niaid.nih.gov/struct_search/all/url_search.asp?aids_no=017682

> <PUBCHEM_CID_ASSOCIATIONS>
11579  1

$$$$