Eliminate the need for antibodies and reduce assay time with direct detection using our radiolabeled ligands, which provide for sensitive and quantitative measurement of binding.
High specific activity — The majority of our 125I-labeled ligands are offered at maximum specific activity. This means virtually every molecule of ligand provided in the stock vial is radiolabeled. For tritiated ligands (3H ligands), pick a ligand with specific activity above 20 Ci/mmol – all of our tritiated ligands meets or exceeds these requirements.
High purity — We offer highly-pure radioligands for the highest specific signal with low background in binding assays.
High selectivity — Our broad portfolio of agonists and antagonists offers many options for choosing the most selective compound for your receptor.
Validated for receptor binding — all of our radioligand products are tested for receptor binding during development. Additionally, many of our radioligands are used to QC our GPCR and receptor cell lines and cell membrane products.
Chloramphenicol, tritiated at the ring-3,5 position. Chloramphenicol is a broad spectrum antibiotic that binds to a receptor site on the 50S subunit of the bacterial ribosome, inhibiting peptidyl transferase.
17α-Hydroxyprogesterone (17α-OHP), tritiated at the 1,2,6,7 position. 17α-Hydroxyprogesterone is an agonist of the progesterone receptor (PR), an antagonist of the mineralocorticoid receptor (MR), and a partial agonist of the glucocorticoid receptor.
Tritiated gabapentin (Neurontin). Gabapentin is a medication used to treat epilepsy, and has been shown to cross membrane lipid barriers via system L-amino acid transporters and bind to voltage-gated calcium channels in the central nervous system.
Clonidine hydrochloride, tritiated on the benzene ring. Clonidine is a drug used to treat high blood pressure, ADHD, anxiety disorders, and drug withdrawal and acts as an agonist at α2 adrenergic and imidazoline receptors.
5-carboxyamidotryptamine (5-CT) labeled with tritium. 5-CT is a tryptamine derivative closely related to the neurotransmitter serotonin. 5-CT acts as a non-selective, high-affinity full agonist at the 5-HT1A, 5-HT1B, 5-HT1D, 5-HT5A, and 5-HT7 serotonin receptors. It also binds the 5-HT2, 5-HT3, 5-HT6 serotonin receptors with lower affinity.
2-D-Penicillamine, 5-D-Penicillamine (DPDPE), tritiated on the tyrosyl group. Cyclic peptide, sequence: Tyr-D-Pen-Gly-Phe-D-Pen-OH. DPDPE is a synthetic enkephalin opioid peptide that acts as an agonist at delta opiate receptors (δ-opioid receptor, DOR).
5-Hydroxytryptamine Binoxalate (Serotonin Binoxalate), labeled with C-14 at the 1-position. 5-Hydroxytryptamine is a neurotransmitter and is the endogenous ligand for serotonin receptors. NEC855 replaces product NEC225, which was labeled at the 2-position.
Nicotine radioligand tritiated on the methyl residue. Nicotine acts as an agonist at most nicotinic acetylcholine receptors; however it acts as an antagonist at two nicotinic receptor subunits (nAChRα9 and (nAChRα10).
Lysergic Acid Diethylamide (LSD), tritiated on the N-methyl group. LSD is a partial agonist of dopamine D2 receptors. It also binds most serotonin receptors (5-HT1A, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT5A, 5-HT5B and 5-HT6).
Batrachotoxinin A 20-alpha-benzolate (BTX-B) tritiated at the benzoyl-2,5 position. Batrachotoxinin-A 20-alpha-benzoate is an analog of batrachotoxin (BTX), and is a ligand for voltage-sensitive sodium channels. BTX-B will now be made available on a fresh lot schedule to be determined for 2018.
Diclofenac sodium, labeled with C-14 on the phenylacetic acid ring. Diclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that acts as an antagonist at peroxisome prolifeator-activated receptor gamma (PPAR-γ or PPARG).
Acetylcholine (Ach) radioligand tritiated on the acetyl group. Acetylcholine is a neurotransmitter and the endogeous ligand that binds to and activates muscarinic and nicotinic acetylcholine receptors.