222461
Murexide
ACS reagent
Synonym(s):
5,5′-Nitrilodibarbituric acid monoammonium salt, Ammonium purpurate
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About This Item
Empirical Formula (Hill Notation):
C8H8N6O6
CAS Number:
Molecular Weight:
284.19
EC Number:
221-266-6
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
MDL number:
Colour Index Number:
56085
Beilstein/REAXYS Number:
3831445
grade
ACS reagent
Quality Level
form
powder
technique(s)
titration: suitable
mp
>300 °C (lit.)
λmax
525 nm
suitability
passes test for complexometric indicator
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
N.OC1=C(\N=C2\C(=O)NC(=O)NC2=O)C(=O)NC(=O)N1
InChI
1S/C8H5N5O6.H3N/c14-3-1(4(15)11-7(18)10-3)9-2-5(16)12-8(19)13-6(2)17;/h(H2,10,11,14,15,18)(H3,12,13,16,17,19);1H3
InChI key
LJYRLGOJYKPILZ-UHFFFAOYSA-N
General description
Murexide is the ammonium salt of purpuric acid that appears as a slightly reddish-purple powder and is soluble in water. It is mainly used as an indicator for complexometric titrations to measure water hardness and as a colorant/pigment in the dye industry.
Application
Murexide is used for the histochemical staining of calcium in the skeleton. It is suitable for staining the hemijaws for dental caries scoring.
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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P C Pape et al.
The Journal of general physiology, 102(2), 295-332 (1993-08-01)
Cut fibers (striation spacing, 3.6-4.2 microns) were mounted in a double Vaseline-gap chamber and studied at 14-15 degrees C. One or both of the Ca indicators fura-2 and purpurate-3,3' diacetic acid (PDAA) were introduced into the optical recording site by
D S Jong et al.
The Journal of general physiology, 102(2), 333-370 (1993-08-01)
Cut fibers from Rana temporaria and Rana pipiens (striation spacing, 3.9-4.2 microns) were mounted in a double Vaseline-gap chamber and studied at 14 degrees C. The Ca indicator purpurate-3,3' diacetic acid (PDAA) was introduced into the end pools and allowed
Muberra Andac et al.
Journal of fluorescence, 17(4), 401-405 (2007-04-26)
A highly sensitive flow-injection spectrofluorimetric method is presented for the rapid and simple determination of Hg (II) in environmental and pharmaceutical samples. Murexide (ammonium purpurate) was used as the fluorescence reagent in the carrier stream. An emission peak of murexide
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 222461-5G | 04061838778000 |