15918
Pyrocatechol Violet
p.a.
Synonym(s):
Catechol violet, Pyrocatecholsulfonphthalein
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About This Item
Empirical Formula (Hill Notation):
C19H14O7S
CAS Number:
Molecular Weight:
386.38
EC Number:
204-088-3
UNSPSC Code:
12352200
MDL number:
Beilstein/REAXYS Number:
353938
InChI
1S/C19H14O7S/c20-14-7-5-11(9-16(14)22)19(12-6-8-15(21)17(23)10-12)13-3-1-2-4-18(13)27(24,25)26/h1-10,20,22-23H,(H,24,25,26)/b19-12+
InChI key
HGPSVOAVAYJEIJ-XDHOZWIPSA-N
SMILES string
Oc1ccc(cc1O)C(=C2\C=CC(=O)C(O)=C2)\c3ccccc3S(O)(=O)=O
grade
p.a.
technique(s)
titration: suitable
mp
185 °C (dec.) (lit.)
solubility
H2O: 1 mg/mL, clear, red, 0.1 M acetate buffer pH 4.7: 10 mg/mL, clear, yellow (without a tinge of green)
Analysis Note
λmax. 444 nm, E(1%,1 cm) ≥435 (Methylalkohol)
Other Notes
Very sensitive reagent for the determination of Fe(III); Determination of Al(III)
Regulatory Information
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Find documentation for the products that you have recently purchased in the Document Library.
A. Tapparo et al.
Analytica Chimica Acta, 238, 279-279 (1990)
O. Royset
Analytica Chimica Acta, 185, 75-75 (1986)
S. Abe et al.
Analytica Chimica Acta, 226, 137-137 (1989)
Y. Shijo
Bulletin of the Chemical Society of Japan, 50, 1013-1013 (1977)
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