What the Anastrozole record shows

Evidence through 2026-09-12

TitrateLab tracks 39 published Anastrozole certificate-of-analysis source records through 2026-09-12, each with a recorded purity or measured-versus-label amount result. Across 3 records with a numeric peptide-purity result, including zero, the median reported purity is 94.6%. Across 36 records with measured-versus-label dose data, 58% are within 10% of the labeled quantity. This is a public convenience sample, not a randomized market survey; one result describes one submitted sample and does not verify other batches.

Published records with a non-null purity or measured-versus-label amount result. Matching uses a normalized compound slug. No deduplication in this archive summary; relays and corrected records can remain separate. Records with neither measurement are excluded here, but can appear in the research overview's exact-token raw-record total. These are not unique certificates or batches. TitrateLab indexes reports from third-party laboratories.

Aggregate calculated: 2026-09-27T01:10:34.141765+00:00. Calculation time is not a test date.

Published records39
Reported purity94.6% median · 3 results
Dose accuracy58% within ±10% · 36 results
EndotoxinNot reported
Evidence dates2019-09-22 to 2026-09-12
Limits and missing evidence
  • No classifiable endotoxin results were recorded.
  • Coverage depends on reports that were published and available to ingest.
Assay metrics

Anastrozole lab-testing metrics

39
Certificates
94.6%
Median reported purity (zero included)
0%
Purity records ≥ 99%
0
Source records reporting zero purity
2
Testing labs
26
Vendors
Mean purity91.6% Below 90% purity33% Mean dose vs label+5.7% Underfilled11% Within 10% of label dose58% Overdosed ≥ +7%42% Underdosed ≤ −7%19%

COAs per testing lab

Every lab testing Anastrozole in the corpus.

Janoshik 38 94.6% med
Freedom Diagnostics 1

Tested-purity distribution

Bins below 90% tested purity (33% of numeric purity records).

Anastrozole tested-purity distribution
Purity rangeCertificates
0–50%0
50–70%0
70–80%0
80–85%1
85–90%0
90–91%0
91–92%0
92–93%0
93–94%0
94–95%1
95–96%0
96–97%1
97–98%0
98–99%0
99–100%0

COAs over time

Anastrozole source records by test month (discovery month when test date is absent).

Anastrozole certificates per month
MonthCertificates
2019-091
2020-011
2020-021
2020-091
2021-022
2021-041
2021-051
2022-011
2022-022
2022-072
2022-082
2023-021
2023-033
2023-051
2023-061
2023-081
2023-111
2024-021
2024-051
2024-061
2024-081
2024-101
2024-121
2025-031
2025-041
2025-051
2025-071
2025-121
2026-022
2026-031
2026-071
2026-091

Most-tested vendors

Top 10 of 15 vendors by Anastrozole certificate count.

TitrateLab ProVendor names in this chart are hidden. Lab-report counts are free.Vendor namesOriginal COAsBatch detailsBuyer reviewsPrice and stock alertsSee vendor names with Pro
Vendor name available with ProExplore reports + 6

Lab evidence

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6 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Vendor name available with ProExplore reports + 3

Lab evidence

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3 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

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Vendor behind these reportsVendor name available with Pro
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  • Original COAs with batch details
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See vendor names with Pro Names, original COAs and batch details

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Vendor name available with ProExplore reports + 3

Lab evidence

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3 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
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  • Vendor names on every ranking and chart
  • Original COAs with batch details
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  • Price and stock alerts for your watchlist
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See vendor names with Pro Names, original COAs and batch details

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Vendor name available with ProExplore reports + 2

Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 2

Lab evidence

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2 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 1

Lab evidence

Free preview

1 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 1

Lab evidence

Free preview

1 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 1

Lab evidence

Free preview

1 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 1

Lab evidence

Free preview

1 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

Vendor name available with ProExplore reports + 1

Lab evidence

Free preview

1 lab reports from this vendor

This chart compares report counts for this compound. A larger test history does not establish better purity, dose accuracy or endotoxin results. Inspect the individual reports to compare measurements.

TitrateLab Pro Which vendor is this?

Pro shows the vendor’s name, its original lab reports and batch details.

Vendor behind these reportsVendor name available with Pro
What Pro unlocks
  • Vendor names on every ranking and chart
  • Original COAs with batch details
  • Buyer reviews for each vendor
  • Price and stock alerts for your watchlist
  • Ask Titer, the AI research assistant
See vendor names with Pro Names, original COAs and batch details

Monthly or lifetime plans. Monthly cancels anytime. Compare plans

+ 5 more vendors with fewer certificates.

Published Anastrozole certificates of analysis

39 records. Zero guesswork.

Unlock the actual vendor, purity, dose accuracy, lab, batch and saved certificate for every Anastrozole result.

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Illustrative structure only. No record-level values are present in this preview.

More COA results by compound