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215600

Sigma-Aldrich

Pararosaniline Base

Dye content 95 %

Synonym(s):

Parafuchsin, Paramagenta

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About This Item

Empirical Formula (Hill Notation):
C19H19N3O
CAS Number:
Molecular Weight:
305.37
Colour Index Number:
42500
Beilstein:
2148632
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

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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Pictograms

Health hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

Carc. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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