METHYL RED (INDICATOR) (C. I. NO. 13020)*

METHYL RED (INDICATOR) (C. I. NO. 13020) METHYL RED (INDICATOR) (C. I. NO. 13020)
Article No. Grade Purity Cas no. Molecular Formula Molecular Weight H.S. Code Shelf Life
M0137700025 AR 493-52-7 C15H15N3O2 269.31 2927.0090
60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

Dark red powder

Odour

Odorless

Melting Point/ Freezing point [°C]

179°C

Vapour density

9.3

Solubility in water [% weight]

Insoluble in water

Specifications

Appearance:

 Dark red to maroon to violet or purple powder or crystals

Identity:

 Passes test

Loss on dryig (at 110°C):

 Max 5.0%

Residue on ignition (as SO4):

 Max 2.0%

Absorption maxima (buffer pH 4.5):

 523 - 526 nm

Absorption maxima (buffer pH 6.2):

 427 - 437 nm

Safety Information and Hazard Symbols

Safety Statement: 22-24/25
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Globally Harmonized System of classification and Labelling of Chemicals (GHS)

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