41019

Schmelzpunktstandard 235-237°C

analytical standard

• Synonym(e): Koffein, 1,3,7-Trimethylxanthin
• Empirische Formel (Hill-System): C₈H₁₀N₄O₂
• CAS-Nummer: 58-08-2
• Molekulargewicht: 194.19
• Beilstein: 17705
• EG-Nummer: 200-362-1
• MDL-Nummer: MFCD00005758
• UNSPSC-Code: 12352210
• PubChem Substanz-ID: 329756046
• NACRES: NA.24

Eigenschaften

• Qualität: analytical standard
• Qualitätsniveau: 100
• Haltbarkeit: limited shelf life, expiry date on the label
• mp (Schmelzpunkt): 234-236.5 °C (lit.); 235-237 °C (±0.3°C)
• Anwendung(en): food and beverages; pharmaceutical
• Format: neat
• SMILES String: CN1C(=O)N(C)c2ncn(C)c2C1=O
• InChI: 1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
• InChIKey: RYYVLZVUVIJVGH-UHFFFAOYSA-N
• Angaben zum Gen: human ... ADORA1(134) , ADORA2A(135) , ADORA2B(136) , ADORA3(140)

Beschreibung

Allgemeine Beschreibung

Melting point standard 235-237 °C, caffeine is useful to calibrate melting point instruments, in the thermodynamic mode of measurement. The value of its melting point is determined with an average of 6 to 12 measurements using a Büchi B-545 instrument that is calibrated against primary standards.

Anwendung

Caffeine melting point standard 235-237 °C finds its use in the characterization of pure chemicals and pharmaceutical compounds.

Leistungsmerkmale und Vorteile

• Melting point calibration standard traceable to primary standards (LGC, London)
• Grade: Analytical Standard
• Standard deviation up to ± 0.3 °C
• Provided with certificates of analysis and safety data sheet

Empfohlene Produkte

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Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H302
• P-Sätze: P264 - P270 - P301 + P312 - P501
• Gefahreneinstufungen: Acute Tox. 4 Oral
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves