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.
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.
Paroxetine (Paxil), tritiated at the phenyl-6' position. Paroxetine is a selective serotonin reuptake inhibitor (SSRI). This product has a scheduled lot release for the first Monday in May and November.
Escitalopram (Cipralex), tritiated at the N-methyl position. Escitalopram is a selective serotonin reuptake inhibitor (SSRI) with high selectivity for the serotonin transporter (SERT) compared to the norepinephrine transporter (NET).
L-Ascorbic acid (reduced form of vitamin C; ascorbate), labeled with C-14 at the 1- position. L-ascorbic acid is a vitamin that binds and is transported through sodium-dependent vitamin C transporters (SVCT1 and SCVT2).
Levo-Norepinephrine, tritiated at the 7 position. Norepinephrine binds and activates adrenergic receptors, and is cleared by the norepinehprine transporter (NET). This product has a scheduled lot release for the third Monday in July.
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.
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).
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.
DADLE, tritiated on the tyrosyl group. Peptide sequence: Tyr-D-Ala-Gly-L-Phe-D-Leu. DADLE is a synthetic enkephalin analog considered selective for the delta opioid receptor, but has been shown to bind the mu opioid receptor as well.
α-Bungarotoxin (α-BTX) radioligand tritiated on the propionyl group. α-BTX acts as an antagonist at nicotinic acetylcholine receptors. α-Bungarotoxin,N-[3H] is part of a scheduled release program and is available on the second Monday in August.