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Methyl red

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CAS No.:

493-52-7

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1

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Methyl red

Description

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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: 25kg/ fibre drum
Main Application	PH Indicator