v.balogun98/100
Consistency: 6 lots, purity band under 1.0 points wide. Research use. Not approved for human administration.
MKM — Xi'an Mokemei Biotechnology Co., Ltd.
Xi'an, CN · established 2016. The index holds 229 assay reports across 39 batches and 22 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.
Where MKM sells
Xi'an Mokemei Biotechnology Co., Ltd. sells from its own storefront. The link is marked nofollow and sponsored: it exists so the figures on this scorecard can be read against what the supplier itself publishes. The index is paid nothing for it and a link is not an assessment.
Visit MKM at mokemeibiotechnology.com →
Every figure above describes lots the index has seen. It says nothing about the lot you are offered, and the only check that does is the one on the certificate against the vial.
Block 1
Identification
Business facts, held constant across the index and not derived from the data. The index sells nothing and takes no supplier payment for placement; the storefront link below is marked nofollow and sponsored so a record can be checked against the seller, and is not a recommendation.
- Legal name
- Xi'an Mokemei Biotechnology Co., Ltd.
- Short code in this index
- MKM
- Also known as
- MKM · MKM Biotech · Xi'an Mokemei Biotechnology
- City
- Xi'an
- Region
- Xi'an
- Country
- CN
- Established
- 2016
- First record in index
- 25 Apr 2024
- Most recent record
- 05 Oct 2026
Block 1b
Dispatch and regional stock
Counted from the chain-of-custody line on this supplier's own records, which names the route each vial travelled to the laboratory, and from the on-record reviews below. The index has no sight of any supplier's warehouse network and publishes none.
Domestic-warehouse route
10.0%
n=229
Retail, shipped to the buyer
72.5%
n=229
Direct to the laboratory
11.4%
n=229
Median courier leg, direct despatch
4d
n=26
| Route to the laboratory | Records | Share |
|---|---|---|
| Domestic warehouse despatch | 23 | 10.0% |
| Retail purchase, shipped to the buyer | 132 | 57.6% |
| Retail purchase via a third-party forwarder | 34 | 14.8% |
| Supplier despatch direct to the laboratory | 26 | 11.4% |
| Laboratory retained-sample archive | 14 | 6.1% |
Every record here carries a chain-of-custody line and that line names the route the vial travelled. Of the 229 MKM records the index holds, 23 reached the contributing laboratory from a domestic warehouse rather than as a cross-border consignment, covering 10 of the 22 compounds MKM is represented by here — Semaglutide, CJC-1295 (no DAC), 5-Amino-1MQ, Tirzepatide, BPC-157, Semax and 4 further compounds. Those are the MKM lines this index has actually seen arrive from regional stock, and they are a count of consignments rather than a stock listing: a line missing from them may simply never have been submitted for assay.
One contributor on the record below documents MKM stock held in Germany, with a transit of 6 working days against a quoted 6. Germany is the only regional stock location named anywhere in MKM's record here, and one consignment described by one buyer is exactly that. It is not a warehouse list and the index has not verified it.
The index measures nothing about lead time — it assays material, it does not buy it. What it has is MKM's own reviewers: 6 of the 26 on-record reviews state a quoted window and what happened against it, and 1 of them describes same-day dispatch. Where MKM despatched a sample direct to a laboratory, the courier leg ran a median 4 days across 26 such consignments — that is a transit time the index can see, and it is not the same thing as a lead time. The reviews are reproduced in full in Block 11.
Block 2
Headline statistics
Each figure carries the n it was computed from. The n= badge next to a statistic is the number of records it was computed from. Below n=8 the badge is amber. Below n=3 the statistic is suppressed and the individual values are shown instead.
Median purity
98.90%
n=229
Interquartile range
0.92pp
n=229
10th percentile
98.02%
n=229
Pass rate vs index spec
96.1%
n=229
Median recovery vs claim
98.1%
n=136
Median water
5.42%
n=229
Median |mass error|
2.5ppm
n=191
Records carrying a flag
22.7%
n=229
Block 3
Reproducibility across independent tests of one lot
Where the same physical lot was assayed more than once, the spread between those results is a property of the material and the fill, not of the market. It is the rarest and most informative statistic on this page, and it exists only for lots someone tested twice.
Median within-batch spread
0.78pp
n=30
Index median spread
0.67pp
n=28
Lots tested 3+ times
30
n=39
Across the 30 MKM lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 0.78 pp. Interpreting that number requires the laboratory repeatability figures: the best contributing laboratory here repeats to 0.16 pp and the worst to 0.34 pp, so a within-lot spread under about 0.5 pp is indistinguishable from measurement noise and a spread above 1 pp is a statement about the material.
Block 4
Supplier certificate against independent measurement
The supplier's own COA purity figure for a lot, minus the median of the index's independent observations of the same physical lot. Positive means the certificate reads higher than the measurement. Rule AX-R05 fires above 1.5 pp.
Median COA divergence
-0.04pp
n=39
Index median divergence
+0.06pp
n=28
Divergences in the supplier's favour
44%
n=39
Divergences beyond 1 pp
0%
n=39
Block 5
Provenance — where the tested material came from
Supplier-supplied samples are weaker evidence than independently purchased ones, because the supplier chose the vial. The index measures the size of that effect rather than assuming it.
Buyer-sourced median
98.79%
n=189
Supplier-supplied median
99.27%
n=26
Supplier-supplied share of records
11.4%
n=229
Block 6
Documentation completeness
The score is not an opinion about paperwork. Each component is the share of MKM batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.
Documentation score
78/100
n=39
Index median score
85/100
n=28
| Certificate field | Batches carrying it | Rubric weight | |
|---|---|---|---|
| Purity figure stated | 100% | 25 points | |
| Analytical method stated (column, gradient, wavelength) | 64% | 25 points | |
| Peptide content stated | 46% | 20 points | |
| Endotoxin stated | 41% | 15 points | |
| Named impurities rather than a total | 42% | 15 points |
Block 7
Coverage by compound
The delta column is this supplier's median minus the index-wide median for the same compound, which is the only comparison worth making: comparing a supplier's aggregate against another supplier's aggregate compares their product mixes as much as their process control.
| Compound | Class | Reports | Median % | Index median % | Δ (pp) | Index spec | Pass % |
|---|---|---|---|---|---|---|---|
| Semaglutide | Incretin | 42 | 98.69 | 98.89 | -0.20 | 97.0 | 100 |
| PT-141 (Bremelanotide) | Melanocortin-receptor | 22 | 99.42 | 99.38 | +0.04 | 98.5 | 91 |
| CJC-1295 (no DAC) | Growth-hormone | 21 | 98.92 | 99.09 | -0.17 | 98.0 | 100 |
| Semax | Neuroactive | 18 | 99.07 | 99.46 | -0.39 | 98.5 | 94 |
| Adipotide | Metabolic | 15 | 98.69 | 98.58 | +0.11 | 96.0 | 100 |
| 5-Amino-1MQ | Non-peptide | 15 | 99.46 | 99.45 | +0.00 | 98.0 | 100 |
| BPC-157 | Tissue-repair | 12 | 98.67 | 99.16 | -0.48 | 98.0 | 100 |
| KPV | Tissue-repair | 12 | 99.90 | 99.64 | +0.26 | 99.0 | 100 |
| Liraglutide | Incretin | 10 | 98.06 | 99.00 | -0.94 | 97.5 | 100 |
| Tirzepatide | Incretin | 10 | 98.07 | 98.55 | -0.48 | 97.0 | 100 |
| Mazdutide | Incretin | 8 | 98.60 | 98.14 | +0.46 | 96.5 | 100 |
| L-Glutathione (reduced) | Short | 8 | 98.69 | 99.33 | -0.64 | 98.5 | 75 |
| Ipamorelin | Growth-hormone | 8 | 99.12 | 99.47 | -0.35 | 99.0 | 63 |
| MK-677 (Ibutamoren mesylate) | Non-peptide | 6 n=6 | 99.33 | 99.49 | -0.16 | 98.5 | 100 |
| Selank | Neuroactive | 6 n=6 | 99.74 | 99.59 | +0.15 | 99.0 | 100 |
| Survodutide | Incretin | 4 n=4 | 97.66 | 98.38 | -0.72 | 96.5 | 100 |
| CJC-1295 with DAC | Growth-hormone | 3 n=3 | 99.10 | 98.95 | +0.15 | 97.5 | 100 |
| Gonadorelin | Hypothalamic | 2 n=2 | n<3 | 99.12 | — | 98.5 | 100 |
| GHRP-2 | Growth-hormone | 2 n=2 | n<3 | 99.28 | — | 99.0 | 50 |
| IGF-1 LR3 | Growth-hormone | 2 n=2 | n<3 | 98.28 | — | 95.0 | 100 |
| Enclomiphene citrate | Non-peptide | 2 n=2 | n<3 | 99.44 | — | 98.5 | 100 |
| TB-500 | Tissue-repair | 1 n=1 | n<3 | 99.53 | — | 98.5 | 100 |
Full per-compound breakdown with distributions and caveats →
Block 8
Quarterly trend
Submission volume is not market share and a quarterly median is not a trend unless the compound mix held still. Both caveats apply to every row below.
Median purity by quarter
Quarters with fewer than two purity records are gaps in the line rather than zeroes.
Coverage growth
Records added per quarter. Growth here is index coverage, not supplier volume.
| Quarter | Batches | Reports | Median purity | Range | Flagged |
|---|---|---|---|---|---|
| 2024-Q1 | 0 | 0 | n<3 | — | 0 |
| 2024-Q2 | 2 | 14 | 98.75 | 98.34–99.78 | 3 |
| 2024-Q3 | 3 | 15 | 99.60 | 98.03–99.93 | 1 |
| 2024-Q4 | 1 | 1 | n<3 | — | 1 |
| 2025-Q1 | 2 | 4 | 98.98 | 98.71–99.10 | 1 |
| 2025-Q2 | 4 | 28 | 98.37 | 97.40–99.93 | 4 |
| 2025-Q3 | 6 | 42 | 98.94 | 97.56–99.87 | 9 |
| 2025-Q4 | 5 | 24 | 99.23 | 98.53–99.93 | 3 |
| 2026-Q1 | 6 | 37 | 98.98 | 98.37–99.93 | 9 |
| 2026-Q2 | 8 | 49 | 98.67 | 97.93–99.93 | 21 |
| 2026-Q3 | 2 | 15 | 99.02 | 97.48–99.89 | 0 |
Block 9
Which laboratory produced these numbers
Laboratories disagree with each other by a measured amount. A supplier tested mostly by one laboratory carries that laboratory's offset in its aggregate, and the adjusted column removes it.
| Laboratory | Reports | Median purity | Lab bias (pp) | Bias-adjusted |
|---|---|---|---|---|
| Janoshik | 87 | 98.79 | +0.00 | 98.79 |
| PeptideMeter | 43 | 98.87 | -0.05 | 98.92 |
| Medutest | 34 | 99.03 | +0.08 | 98.95 |
| VendorInvestigate | 21 | 98.66 | -0.11 | 98.77 |
| Nordanalyt | 26 | 99.00 | +0.02 | 98.98 |
| Kestrel | 18 | 99.47 | +0.24 | 99.23 |
Bias figures are estimated from paired same-lot comparisons and are published with their confidence intervals on inter-lab agreement.
Block 10
What this data does and does not show
Block 11
On-the-record reviews 26
Reviews are signed statements from index contributors about their own testing of this supplier's material. They are opinions attached to evidence, and they are not used in any statistic on this page.
92.0/ 100765 ratings across the index network
ar.iyer99/100
Release signed and dated, named individual. Per-milligram figure calculated against the certificate rather than against nominal fill, and it reconciled.
h.rasmussen96/100
Reconstitution of melanotan II 10 mg: clear on contact, no haze, no particulate. Not medical advice.
ar.amankwah100/100
Dispatch on the quoted day through a public holiday week, with the despatch note timed. Material returned 98.9%.
v.palacios99/100
Repeat determination at 9 months: 99.1%. Original: 99.1%. No drift detected in this sample. Record covers the lots named. Not generalised.
d.aalto95/100
Documentation complete at first issue. No supplementary request raised.
a.girard97/100
Cold chain intact. Phase-change pack solid at arrival, day 3. Evidence base adequate for a rating on this criterion.
m.rahimi98/100
Labelling printed, lot and date legible on every unit examined. No further comment.
s.haddad96/100
Line quoted that three comparable suppliers declined to quote. Material returned within specification. Signature and release date present. Subsequent orders placed with the same supplier.
ha.varga97/100
Related-substances table itemised by impurity with assigned retention times. Not aggregated. Submitted to the index in full.
so.diallo97/100
Transit 6 days from stock held in Germany against a quoted 6. Customs documentation correct at first presentation.
mi.duarte96/100
Fill uniformity: 10 units weighed against declared fill, all within 2%.
z.amankwah95/100
Supplementary certificate for a lot released 8 months earlier retrieved from supplier records on request. Peptide content 98.4%.
e.weiss99/100
Direct-supply material 98.9%. Intermediary vial, same nominal description, 98.9%. Terms, minimum quantity and lead time all stated in writing before the order was placed. Contributor declares no interest beyond the transaction.
a.marchand98/100
Two lots ordered deliberately for comparison. Reported purities 0.1 points apart. Desiccant enclosed within the secondary container.
h.norgaard97/100
Published stock status matched availability. Same-day dispatch. No adverse observation.
br.coelho96/100
5 orders, 18 months. No substitution, no reformulation, no post-payment unavailability. Catalogue availability matched the published catalogue.
ad.marchand95/100
Single lot identifier across the whole consignment. Intra-consignment comparison valid. Declared and independent figures differ by less than repeatability.
k.duarte95/100
Cross-check: PeptideMeter and Medutest, same lot, agreement to 0.1 points. Both agree with the declared figure. Peptide content 98.6%. Record covers the lots named. Not generalised.
j.sjoberg100/100
Retention time assigned to the principal peak and printed on the certificate. Gradient and column chemistry stated alongside it.
v.norgaard98/100
Packing: a rigid outer with no rattle anywhere in it. Desiccant enclosed within the secondary container.
b.falk100/100
Quote correct at first issue and held to invoice. Documentation complete at first issue. No further comment.
b.espinoza96/100
Certificate carries an assigned retention time for the main peak. Complete against the index minimum data set at first issue. Catalogue availability matched the published catalogue.
s.aguirre100/100
Dispatch on the quoted day, over a public holiday week. Material returned 98.4%.
ni.zielinski99/100
Custom synthesis delivered 2 days inside the quoted schedule at the specified purity.
ma.agyeman95/100
Blind submission of AOD-9604 5 mg to PeptideMeter, origin withheld. 98.9% against 98.9% declared. Figures as reported by the named service. Not reproduced by the index.
Block 12
Most recent records
Block 13
Contributor annotations on MKM records 383
Annotations are this index's only discussion surface: signed technical comments attached to a specific record by a named contributor. They are not moderated for agreement with the index's own arithmetic. The most recent on MKM material are below, each linked to the record it sits on.
Charge-state distribution here is unremarkable, which is itself informative: a shifted envelope is one of the earlier signs of aggregation or of a conformational population.
Purity at 99.52 % and water at 3.43 %: the two numbers are independent and both are needed. Excellent chromatography on a wet cake still yields less peptide per vial than the label implies.
A longitudinal set of retail purchases from one supplier across four quarters is the strongest supplier-level evidence available. Several contributors here are building exactly that.
Purity 99.44 %, water 3.39 %, counter-ion 5.72 % acetate, mass balance closed, provenance independent. There is nothing outstanding on this record.
The custody block above records the shipping conditions this vial actually experienced, which is the condition an ordinary buyer's vial experiences too. That representativeness is the point.
Well inside class limit. Worth noting that the class limits are set by mass rather than globally, because the same ppm is a different number of daltons at 340 and at 4,800.
The certificate for MKM-2603-V3346 carries a named related-substances table rather than a totals line. That is what makes 99.39 % checkable against this record instead of merely comparable to it.
One result at the top of the distribution should not move anybody's estimate much on its own. Purity distributions are compressed at the top and long-tailed at the bottom, so the informative observations are the low ones.
Every annotation the index holds on MKM material sits on its own record; the full set is reachable from the record listing and from each contributor's page. To read them against what MKM itself publishes, open mokemeibiotechnology.com → alongside.
Block 14
Where to buy MKM
Xi'an Mokemei Biotechnology Co., Ltd. sells direct from mokemeibiotechnology.com. Everything on this page describes lots the index has already seen; the certificate that matters is the one that arrives with the vial you order, and the lot code on it should match the vial. Ask for the lot-specific document rather than the batch-level summary, and ask for the integration report if you intend to reconcile the figure yourself.
Go to the MKM store at mokemeibiotechnology.com →
Marked nofollow and sponsored. The index is paid nothing for it, takes no commission, and a link is not an assessment. Research compounds. Not medical advice. Nothing on this site is a safety assessment and nothing on it is approved for human use.