Patent ID: 11896969
Assignee: BIO-RAD LABORATORIES, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 2:
3. The chromatography matrix of claim 2, wherein:
X is selected from the group consisting of —O—CH2—, —O—CH2—CH2—, —O—CH2—CH2—CH2—, —O—CH2—CH2—CH2—CH2—, and —O—CH2—CH(OH)—CH2—;
R1 is hydrogen or C1 to C2 alkyl;
R2 is C2 to C3 alkyl;
L is O;
n=1; and
Ar is phenyl, napthyl, or pyridyl optionally substituted with up to three C1 to C2 unsubstituted alkyl,
with the proviso that when R1 is hydrogen, R2 is C2 alkyl, and n is 1, Ar is not phenyl.