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41019

Supelco

Melting point standard 235-237°C

analytical standard

Synonym(s):

Caffeine, 1,3,7-Trimethylxanthine

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About This Item

Empirical Formula (Hill Notation):
C8H10N4O2
CAS Number:
58-08-2
Molecular Weight:
194.19
Beilstein:
17705
EC Number:
200-362-1
MDL number:
MFCD00005758
UNSPSC Code:
12352210
PubChem Substance ID:
329756046
NACRES:
NA.24

grade

analytical standard

Quality Level

100

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

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

InChI key

RYYVLZVUVIJVGH-UHFFFAOYSA-N

Gene Information

human ... ADORA1(134) , ADORA2A(135) , ADORA2B(136) , ADORA3(140)

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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.

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

Recommended products

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

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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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