Description
2-Methylbutane ROTIPURAN® is an analytical-grade solvent with a minimum purity of 99,5 % p.a., CAS number 78-78-4 and empirical formula C₅H₁₂. Its molar mass is 72,15 g/mol and the density is 0,62 g/cm³. The boiling point is 27,8 °C and the flash point is −51 °C, reflecting the high volatility typical of this branched C₅ alkane. Physical data from manufacturer Carl ROTH align with use in extraction steps, sample preparation and other p.a. solvent applications in research and quality-control settings. The EG number is 201-142-8. Clear specification of molar mass, density and boiling behaviour helps method development and routine analysis when a low-boiling hydrocarbon solvent of documented purity is required. This ROTIPURAN® presentation offers a practical pack size for bench-scale analytical workflows that rely on consistent 2-methylbutane quality.
This article is part of Analytical grade solvents (p.a.), in Solvents.
Key features
- Assay (GC): ≥99,5 %
- Water: ≤0,05 %
- Aluminium (Al): ≤0,00005 %
- Barium (Ba): ≤0,00001 %
- Lead (Pb): ≤0,00001 %
- Calcium (Ca): ≤0,00005 %
- Cadmium (Cd): ≤0,000005 %
- Chromium (Cr): ≤0,000002 %
- Iron (Fe): ≤0,00001 %
- Manganese (Mn): ≤0,000002 %
- CAS number: 78-78-4
- Pack sizes: 250 ml, 1 l
- EG nr.: 201-142-8
- Purity: min. 99,5 %, p.a.
- Molar mass: 72,15 g/mol
- Density: 0,62 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about 2-Methylbutane, ROTIPURAN®, min. 99,5 %, p.a., 250 ml, glass
What is this article?
2-Methylbutane, ROTIPURAN®, min. 99,5 %, p.a., 250 ml, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Analytical grade solvents (p.a.), inside Solvents, in Lab chemicals.
An analytical-grade solvent, often marked p.a., has impurity limits tight enough for classical analysis and for preparing reagents. It is not automatically low enough in UV absorbance for HPLC, and it is not dry enough for a water-sensitive reaction. The grade is the purchase.
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.
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The category is Solvents. The sub-category is Analytical grade solvents (p.a.). The catalogue is Lab chemicals.
Shelves beside this one are HPLC & LC-MS grade solvents, Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
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