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1.06161

Murexide

Name: Murexide
Brand: MM

metal indicator, ACS

Synonym(s):

Murexide, Ammonium purpurate, acid

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About This Item

Empirical Formula (Hill Notation):

C₈H₈N₆O₆

CAS Number:

3051-09-0

Molecular Weight:

284.19

UNSPSC Code:

12352107

EC Index Number:

221-266-6

NACRES:

NB.21

MDL number:

MFCD00012777

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Properties

Product Name

Murexide, (ammonium purpurate) metal indicator ACS

grade

ACS reagent

Quality Level

200

form

solid

loss

≤2.0% loss on drying, 105°C

pH

5 (20 °C, 1 g/L in H₂O)

solubility

1 g/L

bulk density

330 kg/m³

A_max

520-524 nm in water

storage temp.

2-30°C

SMILES string

[N+H4].N1C(=O)NC(=O)[C-](C1=O)N=C2C(=O)NC(=O)NC2=O

InChI

1S/C8H4N5O6.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)(H2,12,13,16,17,19);1H3/q-1;/p+1

InChI key

PCCZWUCAYILEMX-UHFFFAOYSA-O

Description

Analysis Note

Identity (IR-spectrum): passes test
Identity (UV/VIS-Spectrum): passes test
Absorption maximum (water): 520 - 524 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.01 g/l; water): ≥ 300
Sulfated ash (800 °C): ≤ 1.0 %
Loss on Drying (105°C): ≤ 2.0 %
Suitability as indicator (for metal titration): passes test

Other Notes

Replaces: MX1665-3; MX1665

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c