41019
熔点标准品 235-237°C
analytical standard
别名:
咖啡因, 1,3,7-三甲基黄嘌呤
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关于此项目
经验公式（希尔记法）:
C8H10N4O2
化学文摘社编号:
分子量:
194.19
UNSPSC Code:
12352210
NACRES:
NA.24
PubChem Substance ID:
EC Number:
200-362-1
Beilstein/REAXYS Number:
17705
MDL number:
产品名称
熔点标准品 235-237°C, analytical standard
InChI
1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
InChI key
RYYVLZVUVIJVGH-UHFFFAOYSA-N
SMILES string
CN1C(=O)N(C)c2ncn(C)c2C1=O
grade
analytical standard
shelf life
limited shelf life, expiry date on the label
mp
234-236.5 °C (lit.)
235-237 °C (±0.3°C)
application(s)
food and beverages
pharmaceutical
format
neat
Quality Level
Gene Information
human ... ADORA1(134), ADORA2A(135), ADORA2B(136), ADORA3(140)
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Application
Caffeine melting point standard 235-237 °C finds its use in the characterization of pure chemicals and pharmaceutical compounds.
Features and Benefits
- 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
General description
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.
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
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
监管及禁止进口产品
此项目有
Louise A Horrigan et al.
Pharmacology & therapeutics, 111(3), 877-892 (2006-03-17)
Caffeine is a member of the methylxanthine family of drugs, and is the most widely consumed behaviourally active substance in the western world. This article is focused on the impact of caffeine on immune function. In this regard, a number
Jonathan M Hodgson et al.
The American journal of clinical nutrition, 97(5), 943-950 (2013-04-05)
Measures of blood pressure variation have been associated with cardiovascular disease and related outcomes. The regular consumption of black tea can lower blood pressure, but its effects on blood pressure variation have yet to be investigated. We aimed to assess
Nicolas Bousette et al.
Journal of cellular physiology, 229(3), 374-383 (2013-09-17)
Calnexin (CNX) is an endoplasmic reticulum (ER) quality control chaperone that has been implicated in ER stress. ER stress is a prominent pathological feature of various pathologic conditions, including cardiovascular diseases. However, the role of CNX and ER stress has
Markus Fehrholz et al.
American journal of physiology. Lung cellular and molecular physiology, 306(1), L101-L109 (2013-10-29)
Factors positively influencing surfactant homeostasis in general and surfactant protein B (SP-B) expression in particular are considered of clinical importance regarding an improvement of lung function in preterm infants. The objective of this study was to identify effects of physiological
Rohit A Sinha et al.
Hepatology (Baltimore, Md.), 59(4), 1366-1380 (2013-08-10)
Caffeine is one of the world's most consumed drugs. Recently, several studies showed that its consumption is associated with lower risk for nonalcoholic fatty liver disease (NAFLD), an obesity-related condition that recently has become the major cause of liver disease
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