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Caffeine

ROTICHROM® HPLC
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
Warning
H302
i harmful if swallowed
P270
i do not eat, drink or smoke when using this product
Pack Qty.
Pack.
1,3,7-Trimethylxanthine, 7-Methyltheobromine
Empirical formula C8H10N4O2
Molar mass (M) 194,20 g/mol
Density (D) 1,23 g/cm³
Melting point (mp) 239 °C
Storage temp. +4 °C
WGK 1
CAS No. 58-08-2
EG-Nr. 200-362-1


Certificates of analysis with chromatogram can be found as English version - recognisable by “_EN.pdf”.
Product details

€166.65/Pack Qty. 

excl. VAT. | 20 mg per Pack Qty.

Art. No. 1EX4.1

In stock
Delivery fast, simple and reliable!
from 6 Pack Qty. €158.32/Pack Qty.
from 24 Pack Qty. €149.98/Pack Qty.

Product details


Certificates of analysis with chromatogram can be found as English version - recognisable by “_EN.pdf”.



Caffeine ROTICHROM® HPLC

Caffeine
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Art. No. Pack Qty. Pack. Price Quantity
1EX4.1 20 mg glass

€166.65

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Downloads / MSDS


General information

For reference substances

  • ROTICHROM® HPLC
  • ROTICHROM® TLC
  • ROTICHROM® GC
  • a batch-specific
      HPLC-chromatogram, TLC-chromatogram and GC-chromatogram respectively
    is prepared, which you can find in the respective certificate of analysis. The batch-related certificate of analysis with chromatogram is available online.
      Reference substances
  • ROTICHROM® CHR
  • are examined chromatographically. The respective chromatograms are not included in the certificate of analysis.


    Reference Substances for Chromatography

    ROTICHROM® HPLC/TLC/GC

    Pure reference substances are essential for precise analysis. They are used for identifying compounds by retention time, for calibrating detectors, and for eliminating errors in quantification of the sample compounds.

    Peak areas are proportional to sample quantity in all chromatographic methods. For precise quantitative analysis, however, it is necessary to calibrate the detector as the signal may significantly vary with different substances.

    To avoid errors during sample preparation and injection, an internal standard should be used in any case. The standard must not be present in the sample, however, its chemical and physical properties ought to be the closest possible to the analytical targets. It must be well resolved in the chromatogram within the same range of retention time as the sample. Before sample analysis, a given volume of standard is added, and all clean-up procedures are made with the sample containing the standard. Quantitative errors may be compensated by comparing the peak-areas of the sample with that of the internal standard.


    Reference Substances for HPLC

    ROTICHROM® HPLC
    Carl ROTH offers a broad range of reference substances for HPLC. These highly pure substances predominantly have a high HPLC purity level, which allows a meaningful analysis. The certificate of analysis is prepared with an HPLC chromatogram.

    ROTICHROM® HPLC - first choice for reference substances for chromatography.


    Certificates of Analysis

    You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
    The following analysis certificates have been found:

    Type analysis

    Appearancewhite to beige coloured powder
    Purity (HPLC)≥95%