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222526

Sigma-Aldrich

3-Methylxanthine

98%

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Synonym(s):
2,6-Dihydroxy-3-methylpurine
Empirical Formula (Hill Notation):
C6H6N4O2
CAS Number:
Molecular Weight:
166.14
Beilstein:
180944
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

mp

>300 °C (lit.)

SMILES string

CN1C(=O)NC(=O)c2[nH]cnc12

InChI

1S/C6H6N4O2/c1-10-4-3(7-2-8-4)5(11)9-6(10)12/h2H,1H3,(H,7,8)(H,9,11,12)

InChI key

GMSNIKWWOQHZGF-UHFFFAOYSA-N

Gene Information

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This Item
705195D5385705209
3-Methylxanthine 98%

Sigma-Aldrich

222526

3-Methylxanthine

1,7-Dimethylxanthine ~98%, solid

Sigma-Aldrich

D5385

1,7-Dimethylxanthine

mp

>300 °C (lit.)

mp

≥300 °C

mp

294-296 °C (lit.)

mp

≥300 °C

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

-

Gene Information

rat ... Adora1(29290), Adora2a(25369)

Gene Information

-

Gene Information

human ... ADORA1(134), ADORA2A(135), ADORA2B(136), ADORA3(140)
rat ... Adora1(29290), Adora2a(25369)

Gene Information

-

General description

3-Methylxanthine, a metabolite of theophylline, was quantitated in rat plasma by a sensitive LC-MS/MS method.

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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1,7-Dimethylxanthine ~98%, solid

Sigma-Aldrich

D5385

1,7-Dimethylxanthine

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K Ueno et al.
DICP : the annals of pharmacotherapy, 25(7-8), 727-730 (1991-07-01)
The mechanism of an interaction between theophylline and mexiletine hydrochloride was investigated in 6 male inpatients coadministered both drugs and 16 inpatients (13 men, 3 women) administered theophylline only. Serum theophylline and mexiletine concentrations and urinary concentrations of theophylline and
H Konishi et al.
European journal of clinical pharmacology, 46(4), 309-312 (1994-01-01)
The effect of fluconazole, an antimycotic that inhibits cytochrome P-450-mediated drug metabolism, on theophylline kinetics and the production of its metabolites were compared with those of enoxacin in 5 healthy subjects. All subjects received a single oral dose of 240
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RNAs often exhibit a high degree of conformational dynamics and heterogeneity, leading to a rugged energy landscape. However, the roles of conformational heterogeneity and rapid dynamics in molecular recognition or RNA function have not been extensively elucidated. Ultrafast time-resolved fluorescence

Articles

Xanthine is a purine base found in most human body tissues and fluids as well as in other organisms. Methylated xanthines (methylxanthines), which include caffeine, paraxanthine, theobromine, and theophylline, commonly used for their effects as mild stiµlants and as bronchodilators, notably in the treatment of asthma symptoms. This application shows the efficient separation of several common xanthines and may be applied their analysis in any number of desired matrices.

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