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Merck
CN

83190

Pyromellitic dianhydride

technical, ≥75% (T)

Synonym(s):

Benzene-1,2,4,5-tetracarboxylic dianhydride, PMDA

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About This Item

Empirical Formula (Hill Notation):
C10H2O6
CAS Number:
89-32-7
Molecular Weight:
218.12
EC Number:
201-898-9
UNSPSC Code:
12162002
PubChem Substance ID:
24888094
Beilstein/REAXYS Number:
213583
MDL number:
MFCD00005005

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InChI key

ANSXAPJVJOKRDJ-UHFFFAOYSA-N

InChI

1S/C10H2O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H

SMILES string

O=C1OC(=O)c2cc3C(=O)OC(=O)c3cc12

grade

technical

assay

≥75% (T)

impurities

~20% pyromellitic acid monoanhydride

bp

397-400 °C (lit.)

mp

283-286 °C (lit.), 284-288 °C

Other Notes

Modifies the ε-amino group of lysine in proteins by acylation

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Modification of epsilon-amino group of lysine in proteins by acylation with pyromellitic dianhydride and o-sulphobenzoic anhydride.
A Bagree et al.
FEBS letters, 120(2), 275-277 (1980-11-03)

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