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Methyl red

Methyl red

Product Name Methyl red
CAS NO 493-52-7
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Methyl red

Description :

 

 

Chemical Name

Methyl red

CAS No.

493-52-7

Molecular formula

C15H15N3O2

EINECS No.

207-776-1

Molecular weight

269.30

Molecular Structure

Details

Appearance: With shine violet crystalor carmine powder

Max Absorption wavelength, λ1(PH4.5): 523~528 nm

Max Absorption wavelength, λ2(PH6.2): 427~437 nm

Mass absorption coefficient , λ1 (PH4.5):130 L/(cm·g) min

Mass absorption coefficient , λ2 (PH6.2):70 L/(cm·g) min

PH discoloration range:4.5(Red)-6.2(Yellow)

Solubility in Ethanol: Pass

Loss on drying: 1.0 % max

Residue on ignition (sulfate):0.2%max

Melting point: 181-182℃

Solubility: solve in alcohol, insolve in water.

Packing: 25kgfibre drum

Main Application

PH Indicator