42993
可可碱
analytical standard
别名:
2,6-Dihydroxy-3,7-dimethylpurine, 3,7-Dihydro-3,7-dimethyl-1H-purine-2,6-dione, 3,7-Dimethylxanthine
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关于此项目
经验公式（希尔记法）:
C7H8N4O2
化学文摘社编号:
分子量:
180.16
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
EC Number:
201-494-2
Beilstein/REAXYS Number:
16464
MDL number:
产品名称
可可碱, analytical standard
InChI
1S/C7H8N4O2/c1-10-3-8-5-4(10)6(12)9-7(13)11(5)2/h3H,1-2H3,(H,9,12,13)
InChI key
YAPQBXQYLJRXSA-UHFFFAOYSA-N
SMILES string
[H]N1C(N(C)C2=C(N(C)C=N2)C1=O)=O
grade
analytical standard
assay
≥99.0% (HPLC)
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable
gas chromatography (GC): suitable
mp
345-350 °C
suitability
conforms to structure for Infrared spectrum
application(s)
cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care
format
neat
Quality Level
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Application
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Theobromine may be used as a reference standard for the determination of theobromine metabolites in human plasma and urine after consumption of soluble cocoa products with different methylxanthine contents by high-performance liquid chromatography and diode array detection (HPLC-DAD) method.
Biochem/physiol Actions
Phosphosdiesterase inhibitor; weak adenosine receptor antagonist; diuretic; smooth muscle relaxant.
General description
Theobromine is an active bronchodilator drug ingredient used in the treatment of acute and chronic asthma. It is a naturally present alkaloid in a wide variety of foods and beverages, such as coffee, cocoa, tea, yerba mate and energizing drinks.
Other Notes
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
涉药品监管产品
此项目有
Theobromine, caffeine, and theophylline metabolites in human plasma and urine after consumption of soluble cocoa products with different methylxanthine contents.
Martinez-Lopez S.
Food Research International, 63, 446-455 (2014)
Rita Petrucci et al.
Biochimica et biophysica acta. General subjects, 1862(8), 1781-1789 (2018-05-16)
Antioxidant properties have been recently suggested for caffeine that seems showing protective effects against damages caused by oxidative stress. In particular, a HO scavenging activity has been ascribed to caffeine. Even if the oxidation of caffeine has been widely studied
Marcia S Bispo et al.
Journal of chromatographic science, 40(1), 45-48 (2002-03-02)
This work relates the development of an analytical methodology to simultaneously determine three methylxanthines (caffeine, theobromine, and theophylline) in beverages and urine samples based on reversed-phase high-performance liquid chromatography. Separation is made with a Bondesil C18 column using methanol-water-acetic acid
Anne-Laure Gassner et al.
Journal of chromatography. A, 1353, 121-130 (2014-06-14)
Procedures for estimating the measurement uncertainty (MU) of the concentration of a given analyte in a sample are of major concern for analytical chemists. Unfortunately, it is still unclear how and why MU should be assessed. While several possibilities exist
Felix Grases et al.
PloS one, 9(10), e111184-e111184 (2014-10-22)
To assess the capacity of methylxanthines (caffeine, theophylline, theobromine and paraxanthine) to inhibit uric acid crystallization, and to evaluate their potential application in the treatment of uric acid nephrolithiasis. The ability of methylxathines to inhibit uric acid nucleation was assayed
实验方案
Qualitative Thin Layer Chromatography Analysis of Flavonoids and Quantification of Terpene Lactones in Ginkgo Biloba Extracts and Tablets
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