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Merck

222526

3-Methylxanthine

98%

Synonym(s):

2,6-Dihydroxy-3-methylpurine

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250 MG

CZK 2,175.00

1 G

CZK 7,633.00

CZK 2,175.00

List PriceCZK 2,900.00Save 25%
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About This Item

Empirical Formula (Hill Notation):
C6H6N4O2
CAS Number:
1076-22-8
Molecular Weight:
166.14
UNSPSC Code:
12352005
NACRES:
NA.22
PubChem Substance ID:
24853339
EC Number:
214-058-1
Beilstein/REAXYS Number:
180944
MDL number:
MFCD00005580

Key Documents

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Product Name

3-Methylxanthine, 98%

InChI key

GMSNIKWWOQHZGF-UHFFFAOYSA-N

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)

SMILES string

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

assay

98%

mp

>300 °C (lit.)

Quality Level

200

Gene Information

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

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1 of 4

This Item
1653026PHR2542705357
3-Methylxanthine 98%

Sigma-Aldrich

222526

3-Methylxanthine

Theophylline Related Compound B United States Pharmacopeia (USP) Reference Standard

USP

1653026

Theophylline Related Compound B

Theophylline Related Compound B certified reference material, pharmaceutical secondary standard

Supelco

PHR2542

Theophylline Related Compound B

3,7-Dimethylxanthine-(dimethyl-d6) 98 atom % D, 98% (CP)

Sigma-Aldrich

705357

3,7-Dimethylxanthine-(dimethyl-d6)

assay

98%

assay

-

assay

-

assay

98% (CP)

Quality Level

200

Quality Level

-

Quality Level

300

Quality Level

200

mp

>300 °C (lit.)

mp

>300 °C (lit.)

mp

>300 °C (lit.)

mp

345 °C

Gene Information

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

Gene Information

-

Gene Information

-

Gene Information

-

General description

3-Methylxanthine, a metabolite of theophylline, was quantitated in rat plasma by a sensitive LC-MS/MS method[1].

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX2321
MKCV2035
MKCR3433
MKCN8804
MKCM5002

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Sandrine Derkenne et al.
Pharmacogenetics and genomics, 15(7), 503-511 (2005-06-23)
Pharmacokinetics of theophylline was investigated in Cyp1(+/+) wild-type mice, Cyp1a1(-/-) and Cyp1a2(-/-) knockout mice, and humanized hCYP1A1_1A2 mice lacking either the mouse Cyp1a1 or Cyp1a2 gene. Animals received a single dose of theophylline (8 mg/kg i.p.), either alone or pretreated
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
M Sarkar et al.
Antimicrobial agents and chemotherapy, 34(4), 594-599 (1990-04-01)
Some quinolone antibiotics cause increases in levels of theophylline in plasma that lead to serious adverse effects. We investigated the mechanism of this interaction by developing an in vitro system of human liver microsomes. Theophylline (1,3-dimethylxanthine) was incubated with human
Sang Won Lee et al.
Biochemistry, 49(13), 2943-2951 (2010-03-11)
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
M C Rogge et al.
Clinical pharmacology and therapeutics, 46(4), 420-428 (1989-10-01)
The pharmacokinetics of theophylline and its three major metabolites, 3-methylxanthine, 1-methylurate, and 1,3-dimethylurate, were studied during intermittent administration of enoxacin. The addition of enoxacin (400 mg, twice daily) to a theophylline dosing regimen (150 mg, twice daily) resulted in an
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