1,7-Dimethylxanthine
1,7-Dimethylxanthine (CAS: 611-59-6), also known as Paraxanthine, is a purine alkaloid with the molecular formula C7H8N4O2 and a molecular weight of 180.16 g/mol. This white solid compound is a metabolite of caffeine and is primarily recognised for its role in cellular signaling pathways and its inhibitory effects on phosphodiesterase enzymes. It finds utility in biochemical research, particularly in studies related to cyclic nucleotide metabolism and G protein-coupled receptors.
- IUPAC
- 1,7-Dimethyl-1H-purine-2,6-dione,2,6-Dihydroxy-1,7-dimethylpurine,Paraxanthine
- Synonyms
- Paraxanthine1,7-Dimethyl-1H-purine-2,6-dione2,6-Dihydroxy-1,7-dimethylpurine

Biochemical Research
1,7-Dimethylxanthine is employed in laboratory settings for studies involving cyclic nucleotide metabolism and phosphodiesterase inhibition. Its known interactions with adenosine receptors also make it a valuable tool in neuroscience research.
Cellular Signaling Studies
As a bioactive small molecule, Paraxanthine is used to investigate signal transduction pathways within cells. Researchers utilise it to explore the mechanisms of G proteins and their associated cyclic nucleotide second messengers.
Pharmacological Investigations
The compound serves as a reference standard or research tool in pharmacological studies. Its metabolism and effects, particularly in relation to caffeine, are areas of ongoing scientific interest.
| Molecular weight | 180.16 |
|---|---|
| Empirical formula | C7H8N4O2 |
| Assay | ~98% |
| Form | solid |
| Colour | white |
| Solubility | ethanol: soluble0.6 mg/mLH2O: soluble1 mg/mL0.1 M NaOH: soluble2 mg/mL |
| Melting point | 294-296 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... ADORA1(134), ADORA2A(135), ADORA2B(136), ADORA3(140)rat ... Adora1(29290), Adora2a(25369) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,7-Dimethylxanthine used for?
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1,7-Dimethylxanthine is primarily used in biochemical and pharmacological research, particularly in studies involving cyclic nucleotide metabolism, phosphodiesterase inhibition, and cellular signaling pathways.
What are the CAS number and chemical formula for 1,7-Dimethylxanthine?
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The CAS number for 1,7-Dimethylxanthine is 611-59-6, and its empirical formula is C7H8N4O2.
What grade and purity does Tech Serve Solutions supply for 1,7-Dimethylxanthine?
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Tech Serve Solutions supplies 1,7-Dimethylxanthine with a minimum assay of ~98%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or pharmacopoeia grade.
What are the primary safety considerations when handling 1,7-Dimethylxanthine?
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1,7-Dimethylxanthine is classified as harmful if swallowed (H302). When handling, it is essential to use appropriate personal protective equipment, including a dust mask (type N95 or equivalent), eyeshields, and gloves. Avoid inhalation of dust and ensure adequate ventilation.
How is 1,7-Dimethylxanthine packaged and exported?
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1,7-Dimethylxanthine is supplied as a white solid. Tech Serve Solutions, as a global supplier and exporter, ensures appropriate packaging for safe international shipment in compliance with regulations.
How can I request a quote or sample for 1,7-Dimethylxanthine?
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To request a quote or a sample of 1,7-Dimethylxanthine, please contact the Tech Serve Solutions sales team through our website or by phone, referencing the product name and CAS number.
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