7.12 EU/mg from an older lot. Endotoxins are heat-stable and drift is rare. If this matches fresh-lot median from the same supplier, the number is stable.
amino_mq_nitro
5-Amino-1MQ unreduced nitro precursor and the brown vials.
Section 1
Contribution
Comments technically on records submitted by others. Annotations are signed and are not moderated for agreement.
Records submitted
0
n=0
Annotations
4
n=4
Median purity submitted
suppressed
n=0
n<3 — see individual records
Suppliers covered
0
n=0
This handle has submitted no records. Annotators comment on other people's submissions and are not required to submit.
Section 2
Annotations
Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it.
12.16 EU/mg is at the sensitivity limit of Janoshik's LAL method. The true value is unspecified; treating this as a point estimate is overstating precision.
7.53 EU/mg is at the sensitivity limit of PeptideMeter's LAL method. The true value is unspecified; treating this as a point estimate is overstating precision.
High endotoxin 7.95 EU/mg on high-purity material vs purity suggests water quality at the fill step. If the lot was lyophilised from non-purified water, this is the expected finding.