Methyl Red hydrochloride
SIAL/861235 - ACS reagent
Synonym: 4-
CAS Number: 63451-28-5
Empirical Formula (Hill Notation): C15H15N3O2 · HCl
Molecular Weight: 305.76
EC Number: 264-190-9
MDL Number: MFCD00012614
Linear Formula: (CH3)2NC6H4N=NC6H4CO2H·HCl
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 861235-25G
| λmax | 493 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| form | powder or crystals |
| grade | ACS reagent |
| InChI | 1S/C15H15N3O2.ClH/c1-18(2 |
| InChI key | ICTWKXAVJAHRMK-CMBBICFISA |
| mp | 175 °C (dec.) (lit.) |
| Quality Level | 200  |
| SMILES string | Cl.CN(C)c1ccc(cc1)N=Nc2 |
| solubility | ethanol: 0.1% |
| storage temp. | room temp |
| visual transition interval | 4.2-6.2, pink to yellow |
| Application: | Methyl red is widely used in food science and applied & pure biology. It is added in media while preparing agar plates for microbiology. It is used as a vital stain for protozoa. Methyl red is also utilized as a tracer for assessing penetration of foods into packaging and as a component of an indicator to examine pork quality. It has been used to study the ability of earthworms to modify their environmental pH. |
| General description: | Methyl red (C.I. 13020) is also known as acid red 2. The hydrochloride form is slightly soluble in water and ethanol. |
| Packaging: | 25 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 | 175 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| Colour Index Number | 13020 |
| UNSPSC | 12171500 |