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Type HazMat fee for 500 gram (Estimated)
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Limited Quantity USD 15-60
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Inaccessible (Haz class 6.1), International USD 150+
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Chemical Structure| 35873-49-5 Chemical Structure| 35873-49-5

Structure of 35873-49-5

Chemical Structure| 35873-49-5

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8-Cyclopentyl-1,3-dimethylxanthine is a selective antagonist of adenosine A1 receptor with pKi of 7.5-8.

Synonyms: CPT; NSC 101806; 8-Cyclopentyltheophylline

4.5 *For Research Use Only !

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Product Details of 8-Cyclopentyl-1,3-dimethylxanthine

CAS No. :35873-49-5
Formula : C12H16N4O2
M.W : 248.28
SMILES Code : O=C(N1C)N(C)C2=C(NC(C3CCCC3)=N2)C1=O
Synonyms :
CPT; NSC 101806; 8-Cyclopentyltheophylline
MDL No. :MFCD00055116

Safety of 8-Cyclopentyl-1,3-dimethylxanthine

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H301-H311-H331
Precautionary Statements:P261-P264-P270-P271-P280-P302+P352-P304+P340-P310-P330-P361-P403+P233-P405-P501
Class:6.1
UN#:2811
Packing Group:

Related Pathways of 8-Cyclopentyl-1,3-dimethylxanthine

GPCR

Isoform Comparison

Biological Activity

In Vitro:

Cell Line
Concentration Treated Time Description References
striatal spiny neurons 1 μM antagonized adenosine A1 receptors, reducing EPSP amplitude depression induced by adenosine and aglycemia J Neurosci. 1997 Jun 15;17(12):4509-16
supraoptic nucleus neurones 10 μM CPT increased the intraburst firing rate and burst duration of phasic neurones, and decreased spike frequency adaptation. J Physiol. 2009 Mar 1;587(Pt 5):1043-56
Rat hippocampal CA3 region neurons 100 nM 10 min CPT, as an A1 receptor antagonist, significantly increased the frequency of epileptiform discharges and inhibited the depressant effects of both ATP and adenosine, resulting in a net excitatory effect when ATP or adenosine was co-perfused with CPT. Br J Pharmacol. 1998 Jan;123(1):71-80

In Vivo:

Species
Animal Model
Administration Dosage Frequency Description References
Sprague-Dawley rats Unilateral carotid artery ligation combined with systemic hypoxia Intravenous injection 1.5 mg/kg Single dose, 20 min before hypoxic exposure To investigate the effect of 8-CPT on hypoxia-induced suppression of synaptic transmission, results showed that 8-CPT blunted the hypoxic depression of fEPSP. J Physiol. 2003 Aug 1;550(Pt 3):961-72
Male Wistar rats Semi-rapid hippocampal kindling model Intracerebroventricular injection 1 μM, 1 μl 3 minutes before each LFS session Selective locked of A1 receptors significantly reduced LFS effectiveness in recovering these parameters. Basic Clin Neurosci. 2020 May-Jun;11(3):333-347
Swiss-Webster mice Mouse brain penetration model Intraperitoneal injection 25 mg/kg Single injection, observed for 30 minutes To determine the penetration and pharmacokinetics of CPT in mouse brain. Results showed that CPT reached maximal brain concentration of 49 μM (49% theoretical penetration) at 7 min post-injection, then declined rapidly to undetectable levels by 30 min. Biochem Pharmacol. 1992 Feb 18;43(4):889-94

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