AssayIndex
Supplier scorecard

SSA — Shanghai Sigma-Audley New Material Technology Co., Ltd.

Shanghai, CN · established 2018. The index holds 294 assay reports across 52 batches and 30 compounds, contributed by 6 laboratories. Every figure below is computed from those records and from nothing else.

294 reports52 batchesmedian purity 98.38 %documentation 72/100

Where SSA sells

Shanghai Sigma-Audley New Material Technology 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 SSA at shanghaisigmaaudley.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
Shanghai Sigma-Audley New Material Technology Co., Ltd.
Short code in this index
SSA
Also known as
SSA · SSA Biotech · Shanghai Sigma-Audley New Material Technology
City
Shanghai
Region
Shanghai
Country
CN
Established
2018
First record in index
15 Apr 2024
Most recent record
11 Jul 2026
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Block 1b

Dispatch and warehouses

Where the supplier holds regional stock. Material assayed by the index is dispatched from these locations, not from the manufacturing site.

  • Netherlands (Rotterdam) — European Union, 2-4 days
  • Germany (Hamburg) — Germany, Austria, Switzerland, 2-4 days
  • United Kingdom (London) — United Kingdom & Ireland, 2-3 days
  • United States (California) — United States, 2-4 days
  • Canada (Toronto) — Canada, 3-5 days
  • Australia (Melbourne) — Australia & New Zealand, 3-5 days
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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 98.38% n=294
Interquartile range 1.18pp n=294
10th percentile 97.35% n=294
Pass rate vs index spec 79.3% n=294
Median recovery vs claim 98.3% n=168
Median water 4.76% n=294
Median |mass error| 2.5ppm n=251
Records carrying a flag 72.1% n=294
012243692.093.094.095.096.097.098.099.0100.092.00–92.25 %: n=092.25–92.50 %: n=092.50–92.75 %: n=092.75–93.00 %: n=093.00–93.25 %: n=093.25–93.50 %: n=093.50–93.75 %: n=093.75–94.00 %: n=094.00–94.25 %: n=094.25–94.50 %: n=094.50–94.75 %: n=094.75–95.00 %: n=095.00–95.25 %: n=095.25–95.50 %: n=095.50–95.75 %: n=495.75–96.00 %: n=396.00–96.25 %: n=496.25–96.50 %: n=296.50–96.75 %: n=096.75–97.00 %: n=297.00–97.25 %: n=997.25–97.50 %: n=1597.50–97.75 %: n=2397.75–98.00 %: n=3998.00–98.25 %: n=2898.25–98.50 %: n=4298.50–98.75 %: n=1898.75–99.00 %: n=3299.00–99.25 %: n=3099.25–99.50 %: n=2799.50–99.75 %: n=1199.75–100.00 %: n=5median 98.38 Purity (% area) Reports
Figure 1. Purity distribution for all 294 SSA records carrying a purity figure. Domain fixed at 92–100 % area and bin width 0.25 pp on every purity histogram on this site, so this figure can be compared by eye with any other supplier's. Dashed line is the SSA median, 98.38 %; the index median is 98.99 %.
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 1.07pp n=37
Index median spread 0.95pp n=20
Lots tested 3+ times 37 n=52

Across the 37 SSA lots in the index with three or more independent assays, the median spread between the highest and lowest purity result on one lot is 1.07 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 +0.22pp n=52
Index median divergence +0.31pp n=20
Divergences in the supplier's favour 73% n=52
Divergences beyond 1 pp 2% n=52
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 97.97% n=60
Supplier-supplied median 98.48% n=219
Supplier-supplied share of records 74.5% n=294
95.296.096.997.798.699.4100.3Buyer-sourcedBuyer-sourced: Q1 97.57, median 97.97, Q3 98.39, n=60outlier 95.55outlier 95.71outlier 96.09outlier 96.17n=60Supplier-suppliedSupplier-supplied: Q1 97.91, median 98.48, Q3 99.12, n=219outlier 95.51outlier 95.65outlier 95.81outlier 95.82outlier 95.90outlier 96.04outlier 96.06n=219Laboratory-retainedLaboratory-retained: Q1 97.78, median 98.40, Q3 98.69, n=15n=15 Purity (% area)
Figure 2. SSA purity by sample provenance. Tukey box plots: box spans Q1–Q3, the heavy rule is the median, whiskers reach the extreme observations inside 1.5 IQR of the box, and points outside the fences are plotted individually. The vertical line is the SSA overall median. Groups with fewer than two observations are omitted rather than drawn as a line.
Block 6

Documentation completeness

The score is not an opinion about paperwork. Each component is the share of SSA batches in the index whose certificate carries that field, weighted as set out on the scoring rubric.

Documentation score 72/100 n=52
Index median score 79/100 n=20
Certificate fieldBatches carrying itRubric weight
Purity figure stated100%25 points
Analytical method stated (column, gradient, wavelength)67%25 points
Peptide content stated50%20 points
Endotoxin stated29%15 points
Named impurities rather than a total29%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.

CompoundClassReportsMedian %Index median %Δ (pp)Index specPass %
RetatrutideIncretin3797.7398.41-0.6896.597
SemaglutideIncretin3698.2398.87-0.6497.0100
MOTS-cMetabolic2798.3399.18-0.8598.063
MazdutideIncretin1798.2998.11+0.1896.5100
L-Glutathione (reduced)Short1798.9999.00-0.0198.588
BPC-157Tissue-repair1598.9099.15-0.2598.087
TirzepatideIncretin1597.7198.44-0.7397.0100
IpamorelinGrowth-hormone1598.2399.48-1.2599.020
PEG-MGFGrowth-hormone1295.8697.92-2.0692.0100
TB-500Tissue-repair1298.5999.47-0.8898.558
LL-37Tissue-repair1298.3198.61-0.3196.5100
SemaxNeuroactive1198.3099.17-0.8798.518
VilonShort1199.1599.150.0099.082
IGF-1 DES (1-3)Growth-hormone999.2898.53+0.7595.0100
GlucagonIncretin7 n=798.9198.78+0.1398.071
GHRP-2Growth-hormone6 n=699.2299.22-0.0099.067
Melanotan IIMelanocortin-receptor6 n=698.5999.24-0.6598.550
SS-31 (Elamipretide)Metabolic5 n=597.7299.42-1.7098.50
Thymosin α1Tissue-repair4 n=498.6399.11-0.4897.5100
L-CarnosineShort3 n=398.4299.07-0.6599.033
GHK-CuTissue-repair2 n=2n<398.54—97.0100
Enclomiphene citrateNon-peptide2 n=2n<399.23—98.50
TriptorelinHypothalamic2 n=2n<398.47—98.5100
CJC-1295 with DACGrowth-hormone2 n=2n<398.79—97.5100
GonadorelinHypothalamic2 n=2n<399.28—98.5100
PT-141 (Bremelanotide)Melanocortin-receptor2 n=2n<399.31—98.50
Humanin (HNG)Metabolic2 n=2n<399.47—97.5100
KPVTissue-repair1 n=1n<399.21—99.0100
5-Amino-1MQNon-peptide1 n=1n<399.24—98.0100
SermorelinGrowth-hormone1 n=1n<398.94—98.0100

Full per-compound breakdown with distributions and caveats →

95.296.096.997.798.699.4100.3RetatrutideRetatrutide: Q1 97.37, median 97.73, Q3 98.38, n=37n=37SemaglutideSemaglutide: Q1 97.72, median 98.23, Q3 98.77, n=36n=36MOTS-cMOTS-c: Q1 97.84, median 98.33, Q3 99.16, n=27n=27MazdutideMazdutide: Q1 97.94, median 98.29, Q3 98.74, n=17n=17L-Glutathione (reduce…L-Glutathione (reduce…: Q1 98.78, median 98.99, Q3 99.36, n=17n=17BPC-157BPC-157: Q1 98.32, median 98.90, Q3 99.41, n=15n=15TirzepatideTirzepatide: Q1 97.53, median 97.71, Q3 98.06, n=15n=15IpamorelinIpamorelin: Q1 97.94, median 98.23, Q3 98.73, n=15n=15PEG-MGFPEG-MGF: Q1 95.69, median 95.86, Q3 96.07, n=12n=12TB-500TB-500: Q1 98.38, median 98.59, Q3 98.91, n=12n=12LL-37LL-37: Q1 97.97, median 98.31, Q3 98.66, n=12n=12SemaxSemax: Q1 98.19, median 98.30, Q3 98.44, n=11outlier 98.84outlier 99.12n=11VilonVilon: Q1 99.04, median 99.15, Q3 99.44, n=11outlier 98.42n=11IGF-1 DES (1-3)IGF-1 DES (1-3): Q1 98.94, median 99.28, Q3 99.68, n=9outlier 97.65n=9 Purity (% area)
Figure 3. SSA purity by compound, for the 14 compounds with at least four SSA records. Compounds are not equally difficult to make or to measure, so the vertical offsets between rows are largely a compound effect and only partly a supplier effect. Compare a row against the same compound on another supplier's page, never against the row above it.
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.

QuarterBatchesReportsMedian purityRangeFlagged
2024-Q100n<3—0
2024-Q253498.7197.68–99.9325
2024-Q364397.9697.05–99.3235
2024-Q432998.3097.32–99.1221
2025-Q143498.6597.34–99.6412
2025-Q241898.4597.17–99.4114
2025-Q3125798.7196.83–99.9345
2025-Q463197.1595.51–99.7119
2026-Q131698.3997.05–99.0416
2026-Q293298.4097.41–99.3525
2026-Q300n<3—0

Full quarterly timeline, batch by batch →

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.

LaboratoryReportsMedian purityLab bias (pp)Bias-adjusted
Janoshik13198.39+0.0098.39
PeptideMeter4998.30-0.0598.35
Medutest5398.49+0.0898.41
VendorInvestigate2297.95-0.1198.06
Nordanalyt2598.41+0.0298.39
Kestrel1499.00+0.2498.76

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.

94.0/ 1001,124 ratings across the index network
s.zielinski95/100

Documentation is better than the two suppliers I used before, and the catalogue covers everything I actually order.

l.norgaard91/100

Good communication throughout, accurate lead time, and the parcel arrived on day 4.

c.espinoza91/100

Ordered semax 10 mg twice. Both vials reconstituted cleanly and both matched their certificates.

so.okonkwo95/100

The cagrilintide 5 mg arrived on day 3 with the cold pack intact and the seal unbroken. Straightforward, exactly as described.

s.moreau91/100

Consistent rather than flashy. Everything lands in the high nineties, and it lands there every time.

me.beaulieu95/100

5 lots logged now, purity 99.2 to 99.2%. A band that tight is worth more to me than one spectacular number.

p.baptista95/100

Quoted 4 days, arrived in 4. Tracking updated at every hop from dispatch to door.

co.vasquez95/100

VendorInvestigate has now seen 8 of their lots through me. Not one has come back outside spec.

b.nakamura91/100

Sensible packing, sensible timelines, and a certificate that says what it should. No notes.

e.villalobos95/100

Costed them per mg against three other suppliers on the same TB-500 5 mg spec. Competitive on price and clearly ahead on documentation.

i.sorensen95/100

Ordered on a Monday from their warehouse in Canada and it was here by day 2. That is the whole case for regional stock.

s.sorensen91/100

Steady supplier. VendorInvestigate results have agreed with their stated figures on every lot I have submitted.

a.ramos95/100

Submitted the IGF-1 LR3 1 mg to VendorInvestigate blind, without telling them the source. 99.6% against a stated 99.2%. The number holds up when nobody knows whose vial it is.

g.balogun95/100

Vials wrapped individually, foam cut to fit, nothing loose in the box. Packing that has clearly been thought about.

c.kjaer95/100

One of the few places that will quote cagrilintide 5 mg at all, and the synthesis came back clean on an independent check.

c.novak95/100

Regional stock makes the difference — dispatched within the Netherlands, day 2, cold pack still hard on arrival.

r.kirchner91/100

Third order and it went the same way as the first two. Predictable in the way you want a supplier to be.

a.perrin95/100

Eighth order from them, all ipamorelin 5 mg. Sent one vial from each to Medutest and the whole set landed inside half a point of each other. That flatness is exactly what I pay for.

l.agyeman95/100

Pleased to find they hold stock in the United Kingdom. Domestic dispatch, day 4, no customs step at all.

m.kirchner91/100

Straightforward order, arrived as described, documentation adequate and complete. Nothing to add, which is the point.

j.krastev95/100

Reordered on the strength of the last one and got an identical result. Repeatability is the product.

j.ogunleye95/100

Every certificate I have from them is lot-specific. Not one batch-level document in 5 orders.

t.sorensen95/100

Shipped with a stated storage recommendation and a shelf-life figure tied to it, without my asking.

e.rasmussen95/100

Identity confirmed by mass spec on the certificate, not just an area-percent figure. Both questions answered on one page.

ma.ndiaye91/100

Shipped from their warehouse in the United States, arrived day 2, documentation complete.

l.pereira95/100

Their warehouse in Germany had the glutathione 600 mg in stock and it shipped the same afternoon. Tracking never left the country.

Block 12

Most recent records

The 25 most recently submitted SSA records. All 294 are listed on the full record listing.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-043144GHK-CuSSA-2604-V7620Janoshik2026-Q298.355.25105.8Supplier-supplied0PASS
AX-2026-043141SemaxSSA-2604-L7628Kestrel2026-Q298.848.5893.2Supplier-supplied2MARGINAL
AX-2026-043117MazdutideSSA-2605-G6781Janoshik2026-Q299.233.6790.4Supplier-supplied1MARGINAL
AX-2026-043136BPC-157SSA-2601-N6752Janoshik2026-Q297.754.32—Supplier-supplied2FAIL
AX-2026-043118MazdutideSSA-2605-G6781Medutest2026-Q298.292.6588.7Buyer-sourced2MARGINAL
AX-2026-043138BPC-157SSA-2601-N6752Janoshik2026-Q298.004.30101.0Supplier-supplied1MARGINAL
AX-2026-043137BPC-157SSA-2601-N6752Janoshik2026-Q297.414.36104.5Laboratory-retained1FAIL
AX-2026-043146Enclomiphene citrateSSA-2603-C6950Medutest2026-Q297.923.1192.9Buyer-sourced2FAIL
AX-2026-043142SemaxSSA-2604-L7628VendorInvestigate2026-Q298.308.24—Buyer-sourced2FAIL
AX-2026-043134BPC-157SSA-2601-N6752Janoshik2026-Q298.394.76—Supplier-supplied1MARGINAL
AX-2026-043155TriptorelinSSA-2601-Y7541Kestrel2026-Q299.285.11103.9Supplier-supplied1MARGINAL
AX-2026-043149MOTS-cSSA-2511-W7415Janoshik2026-Q298.005.42—Supplier-supplied0PASS
AX-2026-043135BPC-157SSA-2601-N6752Janoshik2026-Q298.254.56—Supplier-supplied1MARGINAL
AX-2026-043115MazdutideSSA-2605-G6781PeptideMeter2026-Q298.452.4897.0Buyer-sourced1MARGINAL
AX-2026-043150MOTS-cSSA-2511-W7415Janoshik2026-Q298.335.76—Supplier-supplied0PASS
AX-2026-043133BPC-157SSA-2601-N6752Nordanalyt2026-Q298.414.19—Supplier-supplied1MARGINAL
AX-2026-043119MazdutideSSA-2605-G6781Janoshik2026-Q299.282.75—Supplier-supplied1MARGINAL
AX-2026-043152MOTS-cSSA-2511-W7415Janoshik2026-Q298.645.4888.9Supplier-supplied2MARGINAL
AX-2026-043145Enclomiphene citrateSSA-2603-C6950VendorInvestigate2026-Q297.733.64—Buyer-sourced2FAIL
AX-2026-043120MazdutideSSA-2605-G6781PeptideMeter2026-Q298.743.24104.0Supplier-supplied1MARGINAL
AX-2026-043143GHK-CuSSA-2604-V7620PeptideMeter2026-Q297.964.60102.7Buyer-sourced0PASS
AX-2026-043153MOTS-cSSA-2511-W7415Medutest2026-Q298.785.52—Supplier-supplied0PASS
AX-2026-043140TirzepatideSSA-2511-N7115Nordanalyt2026-Q298.465.34107.2Supplier-supplied3MARGINAL
AX-2026-043151MOTS-cSSA-2511-W7415Janoshik2026-Q297.586.06—Supplier-supplied0FAIL
AX-2026-043116MazdutideSSA-2605-G6781Janoshik2026-Q298.652.63104.6Laboratory-retained1MARGINAL