Description
Methanol ROTIDRY® is a dry, high-purity grade of methanol with a minimum content of 99,9 % and a maximum water level of 50 ppm H₂O, filled The solvent carries CAS number 67-56-1 and the empirical formula CH₃OH, with a molar mass of 32,04 g/mol, density of 0,79 g/cm³, flash point of 9,7 °C and boiling point of 65 °C. Low residual moisture supports use in water-sensitive organic chemistry, sample preparation and general laboratory solvent applications where consistent dryness matters. Offered under the ROTIDRY® line from manufacturer Carl ROTH, this methanol provides a clearly specified purity profile for routine and specialised bench work. The glass packaging aids chemical resistance and controlled dispensing in research, analytical and teaching laboratories. As a flammable liquid, it should be handled with appropriate laboratory controls and personal protective equipment in line with institutional safety procedures for volatile organic solvents.
This article is part of Dry & deuterated solvents (NMR, synthesis), in Solvents.
Key features
- Assay (GC): ≥99,9 %
- Colour (Hazen): ≤10
- Water (KF): ≤0,005 %
- Acidity: ≤0,0005 meq/g
- Evaporation residue: ≤0,0005 %
- CAS number: 67-56-1
- Pack sizes: 1 l, 2.5 l
- EG nr.: 200-659-6
- Purity: min. 99,9 % (max. 50 ppm H₂O)
- Empirical formula: CH₃OH
- Molar mass: 32,04 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information


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Questions about Methanol, ROTIDRY®, min. 99,9 % (max. 50 ppm H2O), 1 l, glass
What is this article?
Methanol, ROTIDRY®, min. 99,9 % (max. 50 ppm H2O), 1 l, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dry & deuterated solvents (NMR, synthesis), inside Solvents, in Lab chemicals.
A dry solvent has had water removed to a stated level, for a reaction that water would stop. A deuterated solvent replaces hydrogen with deuterium so an NMR spectrum is not drowned by the solvent signal. The isotopic enrichment and the water content are the two specifications. Caps and septa matter, because either product picks up moisture from the air.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
Which category should I open next?
The category is Solvents. The sub-category is Dry & deuterated solvents (NMR, synthesis). The catalogue is Lab chemicals.
Shelves beside this one are Analytical grade solvents (p.a.), HPLC & LC-MS grade solvents, Technical & synthesis grade solvents and Green & alternative solvents.
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