Description
Caffeine anhydrous, ROTI®Calipure is a melting point standard specified for the interval 235–238 °C. Identified by CAS number 58-08-2 and empirical formula C₈H₁₀N₄O₂, it has a molar mass of 194,20 g/mol and a density of 1,23 g/cm³, giving laboratories a clearly defined caffeine anhydrous reference for physical-property work. The material is supplied as a 1 g fill in glass and is intended for calibration and verification of melting-point instruments. Within determination-of-physical-properties workflows, this ROTI®Calipure grade supports routine checks of apparatus performance against a documented temperature range. Analytical and quality-control teams use such standards when establishing or confirming melting-point methods for organic solids. The product is offered from manufacturer Carl ROTH as part of a dedicated melting point standards range. Its combination of anhydrous caffeine identity, stated molar mass and density, and a practical 1 g glass pack makes it a convenient choice for laboratories that require a reliable melting-point reference without expanding inventory beyond a small calibration quantity.
This article is part of Reference substances & reagents (other), in Analytical standards & reference materials.
Key features
- Meniscus formation: 235-238 °C
- Complete liquefaction: 235-238 °C
- Measurement uncertainty: ±0,3 °C
- CAS number: 58-08-2
- Pack size: 1 g glass
- EG nr.: 200-362-1
- Empirical formula: C₈H₁₀N₄O₂
- Molar mass: 194,20 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Caffeine anhydrous, ROTI®Calipure, Melting point standard 235-238 °C, 1 g, glass
What is this article?
Caffeine anhydrous, ROTI®Calipure, Melting point standard 235-238 °C, 1 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reference substances & reagents (other), inside Analytical standards & reference materials, in Lab chemicals.
A reference substance has a stated identity and a stated content, used to check a method or to standardise a titration. It is a more tightly specified article than a reagent grade bottle of the same name. The lot's certificate is part of the product.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
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The category is Analytical standards & reference materials. The sub-category is Reference substances & reagents (other). The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN), Spectroscopy & physical property standards and Indicators & indicator solutions.
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