Terminal-digit tests over a supplier's declarations are cheap and mostly inconclusive. Where they are conclusive, the conclusion is usually about document generation and not about laboratory practice.
benford_check
First-digit tests on reported impurity levels. Mostly inconclusive, occasionally not.
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
22
n=22
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. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.
Following. Will comment if a second record turns up.
Nothing on this record contradicts the declaration. Purity 98.00 %, largest single impurity oxidised Trp (+16 Da) at 1.25 %, mass balance closed.
The index publishes the declared figure and the measured figure side by side and does not adjudicate between them. Both are on this page and the difference is stated rather than characterised.
Nothing on this record contradicts the declaration. Purity 99.24 %, largest single impurity 1-methylquinolinium (des-amino, −15 Da) at 0.39 %, mass balance closed.
Nothing on this record contradicts the declaration. Purity 97.56 %, largest single impurity deamidated Asn (+1 Da) at 1.01 %, mass balance closed.
Nothing on this record contradicts the declaration. Purity 99.93 %, largest single impurity BPC-157 arginine-salt artefact at 0.04 %, mass balance closed.
Nothing on this record contradicts the declaration. Purity 98.82 %, largest single impurity deamidated (Asn→Asp, +1 Da) at 0.83 %, mass balance closed.
Nothing on this record contradicts the declaration. Purity 99.93 %, largest single impurity des-His1 truncate (−137 Da) at 0.04 %, mass balance closed.
Nothing on this record contradicts the declaration. Purity 99.14 %, largest single impurity des-His1 truncate (−137 Da) at 0.54 %, mass balance closed.
Right on both counts.
Declared figure and measured figure on this lot agree within measurement repeatability. Whatever the rounding convention is doing, it is not moving the number away from the material.
Showing 12 distinct comments of 22 annotations by this handle.