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Key Documents

186-M

Sigma-Aldrich

Congo Red

HARLECO® For the detection of amyloid deposits

Synonym(s):

Congo Red, Direct Red, C.I. #22120

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About This Item

Empirical Formula (Hill Notation):
C32H22N6Na2O6S2
CAS Number:
Molecular Weight:
696.66
MDL number:
UNSPSC Code:
12352107
EC Index Number:
209-358-4

vapor pressure

<1 Pa

Quality Level

pH

6.7 (20 °C, 10 g/L in H2O)

mp

>360 °C

solubility

25 g/L

storage temp.

10-30°C

InChI

1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2

InChI key

IQFVPQOLBLOTPF-UHFFFAOYSA-L

Application

Certified by the Biological Stain Commission (BSC)
For In-Vitro Diagnostic Use.
For Professional Use.
Used for cytoplasmic staining of paraffin sections fixed in Bouin’s fluid. Also a general tissue stain for use as a cytoplasmic counterstain.
HARLECO® For the detection of amyloid deposits

Legal Information

HARLECO is a registered trademark of Merck KGaA, Darmstadt, Germany

Certificates of Analysis (COA)

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