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Sigma-Aldrich

Pyronin Y

for microscopy (Bot., Fl., Hist.)

Synonym(s):

Pyronin G, Pyronin J

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About This Item

Empirical Formula (Hill Notation):
C17H19ClN2O
CAS Number:
92-32-0
Molecular Weight:
302.80
Colour Index Number:
45005
Beilstein:
3795789
EC Number:
202-147-8
MDL number:
MFCD00011725
UNSPSC Code:
12171500
PubChem Substance ID:
57652949
NACRES:
NA.47

grade

for microscopy (Bot., Fl., Hist.)

Quality Level

100

mp

250-260 °C (lit.)

solubility

water: 0.01 g/10 mL, red

εmax

≥1650 at 543-553 nm in 50% ethanol
≥650 at 249-259 nm in 50% ethanol

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Cl-].CN(C)c1ccc2C=C3C=C\C(C=C3Oc2c1)=[N+](/C)C

InChI

1S/C17H19N2O.ClH/c1-18(2)14-7-5-12-9-13-6-8-15(19(3)4)11-17(13)20-16(12)10-14;/h5-11H,1-4H3;1H/q+1;/p-1

InChI key

INCIMLINXXICKS-UHFFFAOYSA-M

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Biochem/physiol Actions

Pyronin Y is important in histochemistry and is combined with methyl green for staining of RNA. The mixture results in bright red/green staining of nucleic acids.

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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