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27602

Sigma-Aldrich

Caféine

anhydrous, tested according to Ph. Eur.

Synonyme(s) :

1,3,7-triméthylxanthine

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About This Item

Formule empirique (notation de Hill):
C8H10N4O2
Numéro CAS:
58-08-2
Poids moléculaire :
194.19
Numéro Beilstein :
17705
Numéro CE :
200-362-1
Numéro MDL:
MFCD00005758
Code UNSPSC :
12352210
ID de substance PubChem :
329753004
Nomenclature NACRES :
NA.21

Qualité

anhydrous

Niveau de qualité

100

Agence

EPA 1694
USP/NF
tested according to Ph. Eur.

Forme

powder

Pf

234-236.5 °C (lit.)

Solubilité

H2O: soluble 18.7 g/L at 16 °C

Application(s)

environmental

Chaîne SMILES 

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

Clé InChI

RYYVLZVUVIJVGH-UHFFFAOYSA-N

Informations sur le gène

human ... ADORA1(134) , ADORA2A(135) , ADORA2B(136) , ADORA3(140) , PDE4B(5142)
mouse ... Adora2b(11541)
rat ... Adora1(29290) , Adora2a(25369)

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Application

Caffeine has been used as a radiosensitizing agent utilized for studying its impact in inhibiting the catalytic activity of ATM and ATR Kinase. CTGF is an important modulator protein of fibrogenic TGF-β. Hence, this product has also been used for examining the caffeine-dependent regulation of CTGF expression in rat hepatocytes.

Actions biochimiques/physiologiques

Caffeine is a central nervous system stimulant, adenosine receptor antagonist as well as adenosine 3′,5′-cyclic monophosphate (cAMP) phosphodiesterase inhibitor. It stimulates the sarcoplasmic reticulum (SR) Ca2+-release channel which facilitates the excitation-contraction coupling in cardiac muscle. It has also been reported to affect cellular calcium levels, releasing calcium from intracellular stores. Caffeine overrides the cell cycle effects of various chemicals such as protease inhibitors, preventing apoptosis; and it has been shown to inhibit cellular DNA repair mechanisms.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H302

Classification des risques

Acute Tox. 4 Oral

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
BCCL9948
BCCL4097
BCCK8132
BCCJ0924
BCCG5617

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Caffeine standard solution for HPLC system qualification

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J N Sarkaria et al.
Cancer research, 59(17), 4375-4382 (1999-09-15)
Caffeine exposure sensitizes tumor cells to ionizing radiation and other genotoxic agents. The radiosensitizing effects of caffeine are associated with the disruption of multiple DNA damage-responsive cell cycle checkpoints. The similarity of these checkpoint defects to those seen in ataxia-telangiectasia
E Rousseau et al.
The American journal of physiology, 256(2 Pt 2), H328-H333 (1989-02-01)
Caffeine is thought to affect excitation-contraction coupling in cardiac muscle by activating the sarcoplasmic reticulum (SR) Ca2+-release channel. The effect of caffeine at the single channel level was studied by incorporating canine cardiac SR vesicles into planar lipid bilayers. Cardiac
Lukas Kovar et al.
Pharmaceuticals (Basel, Switzerland), 15(2) (2022-02-27)
Static in vitro permeation experiments are commonly used to gain insights into the permeation properties of drug substances but exhibit limitations due to missing physiologic cell stimuli. Thus, fluidic systems integrating stimuli, such as physicochemical fluxes, have been developed. However
C P Selby et al.
Proceedings of the National Academy of Sciences of the United States of America, 87(9), 3522-3525 (1990-05-01)
Caffeine potentiates the mutagenic and lethal effects of genotoxic agents. It is thought that this is due, at least in some organisms, to inhibition of DNA repair. However, direct evidence for inhibition of repair enzymes has been lacking. Using purified
Jueng-Eun Im et al.
Pharmaceutics, 13(5) (2021-05-06)
Dermal absorption of chemicals is a key factor in risk assessment. This study investigated the effects of different amounts of application on dermal absorption and suggested an appropriate application dose for proper dermal absorption. Caffeine and testosterone were chosen as
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