149657
  -OEChem-03010813452D

 20 23  0     0  0  0  0  0  0999 V2000
    0.0000   -2.9621    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    2.9621    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0621   -2.9828    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.0621   -2.9828    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0621    2.9793    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.0621    2.9793    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0172   -1.1828    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0207   -1.1828    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0172    1.1793    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0207    1.1793    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0172   -2.3828    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0207   -2.3828    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.0172    2.3793    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.0207    2.3793    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0379   -0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0379   -0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0379    0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0379    0.6000    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
  1 13  1  0  0  0  0
  1 14  1  0  0  0  0
  2 15  1  0  0  0  0
  2 16  1  0  0  0  0
  3 13  2  0  0  0  0
  4 14  2  0  0  0  0
  5 15  2  0  0  0  0
  6 16  2  0  0  0  0
  7  8  2  0  0  0  0
  7  9  1  0  0  0  0
  7 10  1  0  0  0  0
  8 11  1  0  0  0  0
  8 12  1  0  0  0  0
  9 13  1  0  0  0  0
  9 17  2  0  0  0  0
 10 14  1  0  0  0  0
 10 18  2  0  0  0  0
 11 15  1  0  0  0  0
 11 19  2  0  0  0  0
 12 16  1  0  0  0  0
 12 20  2  0  0  0  0
 17 19  1  0  0  0  0
 18 20  1  0  0  0  0
M  END
> <PUBCHEM_COMPOUND_ID_TYPE>
0

> <PUBCHEM_TOTAL_CHARGE>
0

> <PUBCHEM_SUBSTANCE_ID>
149657

> <PUBCHEM_SUBSTANCE_VERSION>
3

> <PUBCHEM_EXT_DATASOURCE_NAME>
ChemIDplus

> <PUBCHEM_EXT_DATASOURCE_REGID>
000081301

> <PUBCHEM_SUBSTANCE_SYNONYM>
(2)Benzopyrano(6,5,4-def)(2)benzopyran-1,3,6,8-tetrone
1,4,5,8-NAPHTHALENETETRACARBOXYLIC ACID, 1,8:4,5-DIANHYDRIDE
1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-dianhydride (8CI)
1,4,5,8-Naphthalenetetracarboxylic acid anhydride
1,4,5,8-Naphthalenetetracarboxylic acid dianhydride
1,4,5,8-Naphthalenetetracarboxylic dianhydride
1,8:4,5-Naphthalenetetracarboxylic dianhydride
2,7-Dioxapyrene-1,3,6,8-tetrone
4052-78-2
5-19-05-00423 (Beilstein Handbook Reference)
81-30-1
BRN 0272788
EINECS 201-342-5
NSC 84241
NTCDA
Naphthalene-1,8:4,5-tetracarboxylic dianhydride
Naphthalenetetracarboxylic dianhydride

> <PUBCHEM_GENERIC_REGISTRY_NAME>
4052-78-2
81-30-1

> <PUBCHEM_XREF_EXT_ID>
000081301

> <PUBCHEM_EXT_DATASOURCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/

> <PUBCHEM_EXT_SUBSTANCE_URL>
http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced&regno=000081301

> <PUBCHEM_CID_ASSOCIATIONS>
6678  1

$$$$