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Technical Data Sheet Methyl Orange

Compound Information
Product Name: Methyl Orange
CAS No.: 547-58-0
Molecular Formula: C14H14N3NaO3S
Molecular Weight: 328.34
Revision Date: 2026-04-16
Analytical Information
Tests Specifications
Description Orange-yellow crystalline powder.
Grade Indicator
Solubility 5g/l
Dye content Min.85%
Transition range(pH 3.1-4.4) pink to orange yellow
Absorption, L max pH 3.1 501 - 504 nm
Absorption, L max pH 4.4 467 - 471 nm
Loss on drying,110°C 5.0% max
¹H NMR Pass test
¹³C NMR Pass test
IR Pass test
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