Patent ID: 11867705
Assignee: ARK DIAGNOSTICS, INC.
Field: Measurement (Instruments)
Classification: CPC G  C  A | IPC A  C  G

Claim 0:
1. A compound or a salt thereof for use in a gabapentin immunoassay for detecting the presence or absence of gabapentin in a sample, wherein the compound has the structure:, wherein:
R1, R2, or R3 is -X-W-L-Z,
when R1 is -X-W-L-Z, X is NH, and R2 is —OH, and R3 is —H,
when R2 is -X-W-L-Z, X is NH, R1 is —NH2, and R3 is —H, and
when R3 is -X-W-L-Z, X is a heteroatom or lower alkyl group, R1 is —NH2, and R2 is —OH;
W is a lower alkyl group or a carbonyl group;
L is a linker or at least one bond between W and Z; and
Z is a detectable label, wherein the detectable label comprises a fluorophore, a radioisotope, or a metal particle and wherein said fluorophore is selected from the group consisting of fluorescein derivatives, rhodamine derivatives, phycoerythrin, and Texas red.