Murexide
SIAL/222461 - ACS reagent
Synonym: 5,5′-Nitrilodibarbituric acid monoammonium salt; Ammonium purpurate
CAS Number: 3051-09-0
Empirical Formula (Hill Notation): C8H8N6O6
Molecular Weight: 284.19
EC Number: 221-266-6
MDL Number: MFCD00012777
Linear Formula: C8H8N6O6
Product Type: Chemical
| λmax | 525 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| form | powder |
| grade | ACS reagent |
| InChI | 1S/C8H5N5O6.H3N/c14-3-1(4 |
| InChI key | LJYRLGOJYKPILZ-UHFFFAOYSA |
| mp | >300 °C (lit.) |
| Quality Level | 200  |
| SMILES string | N.OC1=C(N=C2C(=O)NC(=O) |
| storage temp. | room temp |
| suitability | passes test for complexometric indicator |
| technique(s) | titration: suitable |
| Application: | Murexide is used for the histochemical staining of calcium in the skeleton. It is suitable for staining the hemijaws for dental caries scoring. |
| 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. |
| Packaging: | 5 g in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | >300 °C (lit.) |
| Storage Temp. | room temp |
| Colour Index Number | 56085 |
| UNSPSC | 12171500 |