MilliporeSigma
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215600

Sigma-Aldrich

Pararosaniline Base

Dye content 95 %

Synonym(s):
Parafuchsin, Paramagenta
Empirical Formula (Hill Notation):
C19H19N3O
CAS Number:
Molecular Weight:
305.37
Colour Index Number:
42500
Beilstein:
2148632
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

form

powder

composition

Dye content, 95%

mp

205 °C (dec.) (lit.)

solubility

95% ethanol: 1 mg/mL

λmax

544 nm

ε (extinction coefficient)

≥13000 at 544-550 nm in ethanol at 0.002 g/L
≥18000 at 239-245 nm in ethanol at 0.002 g/L
≥7000 at 287-293 nm in ethanol at 0.002 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Nc1ccc(cc1)C(O)(c2ccc(N)cc2)c3ccc(N)cc3

InChI

1S/C19H19N3O/c20-16-7-1-13(2-8-16)19(23,14-3-9-17(21)10-4-14)15-5-11-18(22)12-6-15/h1-12,23H,20-22H2

InChI key

KRVRUAYUNOQMOV-UHFFFAOYSA-N

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Davide Tamburro et al.
Journal of the American Chemical Society, 133(47), 19178-19188 (2011-10-18)
Many low-abundance biomarkers for early detection of cancer and other diseases are invisible to mass spectrometry because they exist in body fluids in very low concentrations, are masked by high-abundance proteins such as albumin and immunoglobulins, and are very labile.

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