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Thermo Scientific Chemicals Methyl orange
Description
This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications
Specifications
Melting Point | >300.0°C |
Clarity | Passes Test |
Beilstein | 16, 331 |
Merck Index | 15, 6178 |
Solubility Information | Solubility in water: soluble in hot water. Other solubilities: practically insoluble in alcohol |
Infrared Spectrum | Authentic |
Formula Weight | 327.32 |
Grade | ACS Reagent |
Packaging | Glass bottle |
Visual Transition Interval | from pH 3.2 (pink or red) to pH 4.4 (yellow) |
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Certificates
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
A0392528 | Certificate of Analysis | 14/12/2022 | 414660100,414660250,414661000 |
A0413685 | Certificate of Analysis | 13/12/2022 | 414660100,414660250,414661000 |
A0440793 | Certificate of Analysis | 01/04/2022 | 414660100,414660250,414661000 |
A0402434 | Certificate of Analysis | 24/02/2022 | 414660100,414660250,414661000 |
A0438460 | Certificate of Analysis | 24/01/2022 | 414660100,414660250,414661000 |
Safety and Handling

- Methyl Orange
- Danger
- Acute toxicity Category 3
- H301-Toxic if swallowed.
- P264-Wash face, hands and anyexposed skin thoroughly after handling.
- P270-Do not eat, drink or smoke when using this product.
- P301+P310-IF SWALLOWED: Immediately call a POISON CENTER/doctor /
RUO – Research Use Only
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