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Primary Reference Standard

When precision matters most, start with the highest benchmark—Primary Reference Standards from Lancetech Ltd are essential for achieving traceable and reproducible results in analytical testing. These ultra-pure substances serve as the definitive reference point for calibrating instruments, verifying methods, and producing secondary standards.


Ideal for pharmaceutical, environmental, and chemical laboratories, our primary standards ensure compliance with global regulatory requirements and support accurate quantification across a wide range of applications. Each standard is backed by detailed documentation and traceability to certified bodies, ensuring your data integrity from the first measurement onward.


Explore our range of primary reference materials and set a solid foundation for your lab’s analytical success.

Tropodithietic Acid 0.1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T137-0.1MG
Tropodithietic Acid 0.1 mg CAS number 750590-18-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£137.28 £152.53
Tropodithietic Acid 0.5 mg
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Manufacturer: TOKU-E Item Number: T137-0.5MG
Tropodithietic Acid 0.5 mg CAS number 750590-18-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£478.31 £531.45
Tropolone 1 g
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Manufacturer: TOKU-E Item Number: T039-1G
Tropolone 1 g CAS number 533-75-5 and purity ≥99% ...
Price excludes taxes and shipping charges. Save -10%
£32.75 £36.39
Tropolone 25 g
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Manufacturer: TOKU-E Item Number: T039-25G
Tropolone 25 g CAS number 533-75-5 and purity ≥99% ...
Price excludes taxes and shipping charges. Save -10%
£320.80 £356.44
Tropolone 5 g
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Manufacturer: TOKU-E Item Number: T039-5G
Tropolone 5 g CAS number 533-75-5 and purity ≥99% ...
Price excludes taxes and shipping charges. Save -10%
£129.09 £143.43
Trovafloxacin Mesylate 10 mg
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Manufacturer: TOKU-E Item Number: T151-10MG
Trovafloxacin Mesylate 10 mg CAS number 147059-75-4 and purity >=95.0%...
Price excludes taxes and shipping charges. Save -10%
£144.02 £160.02
Trovafloxacin Mesylate 50 mg
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Manufacturer: TOKU-E Item Number: T151-50MG
Trovafloxacin Mesylate 50 mg CAS number 147059-75-4 and purity >=95.0%...
Price excludes taxes and shipping charges. Save -10%
£446.52 £496.13
Tryptic Soy Broth 500 g
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Manufacturer: TOKU-E Item Number: T115-500G
Tryptic Soy Broth 500 g CAS number nan and purity assay (inhibition rate): No Salmonella inhibition...
Price excludes taxes and shipping charges. Save -10%
£47.68 £52.98
TS 155-2 1 mg
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Manufacturer: TOKU-E Item Number: T102-1MG
TS 155-2 1 mg CAS number 303009-07-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
TS 155-2 5 mg
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Manufacturer: TOKU-E Item Number: T102-5MG
TS 155-2 5 mg CAS number 303009-07-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Tubercidin 1 mg
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Manufacturer: TOKU-E Item Number: T064-1MG
Tubercidin 1 mg CAS number 69-33-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Tubercidin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T064-5MG
Tubercidin 5 mg CAS number 69-33-0 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£195.56 £217.29
Tubermycin B 5 mg
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Manufacturer: TOKU-E Item Number: T103-5MG
Tubermycin B 5 mg CAS number 2538-68-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Tulathromycin A 10 mg
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Manufacturer: TOKU-E Item Number: T107-10MG
Tulathromycin A 10 mg CAS number 217500-96-4 and purity 94.0-104% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£77.55 £86.17
Tulathromycin A 2 x 50 mg
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Manufacturer: TOKU-E Item Number: T107-2x50MG
Tulathromycin A 2 x 50 mg CAS number 217500-96-4 and purity 94.0-104% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£466.75 £518.61
Tulathromycin A 50 mg
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Manufacturer: TOKU-E Item Number: T107-50MG
Tulathromycin A 50 mg CAS number 217500-96-4 and purity 94.0-104% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£290.93 £323.26
Tunicamycin 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T104-25MG
Tunicamycin 25 mg CAS number 11089-65-9 and purity >99% by HPLC (total complex)...
Price excludes taxes and shipping charges. Save -10%
£425.81 £473.12
Tunicamycin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T104-5MG
Tunicamycin 5 mg CAS number 11089-65-9 and purity >99% by HPLC (total complex)...
Price excludes taxes and shipping charges. Save -10%
£122.35 £135.94
Turmerone 1 mg
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Manufacturer: TOKU-E Item Number: T139-1MG
Turmerone 1 mg CAS number 532-65-0 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.82 £195.35
Turmerone 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T139-5MG
Turmerone 5 mg CAS number 532-65-0 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£614.63 £682.92
Tylosin 1 g
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Manufacturer: TOKU-E Item Number: T013-1G
Tylosin 1 g CAS number 1401-69-0 and purity (On Dried Basis): ≥900 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£86.71 £96.34
Tylosin 5 g
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Manufacturer: TOKU-E Item Number: T013-5G
Tylosin 5 g CAS number 1401-69-0 and purity (On Dried Basis): ≥900 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£232.65 £258.50
Tylosin A EvoPure® 5 mg
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Manufacturer: TOKU-E Item Number: T058-5MG
Tylosin A EvoPure® 5 mg CAS number 8026-48-0 and purity >95% (HPLC, as is)...
Price excludes taxes and shipping charges. Save -10%
£404.13 £449.03
Tylosin B EvoPure® 100 mg
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Manufacturer: TOKU-E Item Number: T057-100MG
Tylosin B EvoPure® 100 mg CAS number 11032-98-7 and purity >95% (HPLC, as is)...
Price excludes taxes and shipping charges. Save -10%
£349.70 £388.56
Tylosin Tartrate 1 g
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Manufacturer: TOKU-E Item Number: T014-1G
Tylosin Tartrate 1 g CAS number 74610-55-2 and purity (On Dried Basis): ≥800 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£60.70 £67.44
Tylosin Tartrate 10 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T014-10G
Tylosin Tartrate 10 g CAS number 74610-55-2 and purity (On Dried Basis): ≥800 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£304.90 £338.78
Tylosin Tartrate 5 g
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Manufacturer: TOKU-E Item Number: T014-5G
Tylosin Tartrate 5 g CAS number 74610-55-2 and purity (On Dried Basis): ≥800 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£187.86 £208.73
Tylvalosin 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T149-10MG
Tylvalosin 10 mg CAS number 63409-12-1 and purity >=90.0%...
Price excludes taxes and shipping charges. Save -10%
£127.16 £141.29
Tylvalosin Tartrate 1 g
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Manufacturer: TOKU-E Item Number: T148-1G
Tylvalosin Tartrate 1 g CAS number 63428-13-7 and purity Assay: >=830 U/mg...
Price excludes taxes and shipping charges. Save -10%
£97.30 £108.11
Tyrocidine 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T105-25MG
Tyrocidine 25 mg CAS number 8011-61-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£788.99 £876.66
Tyrocidine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: T105-5MG
Tyrocidine 5 mg CAS number 8011-61-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£226.39 £251.54
Tyrothricin 100 mg
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Manufacturer: TOKU-E Item Number: T043-100MG
Tyrothricin 100 mg CAS number 1404-88-2 and purity (As Is): ≥900µg/mg...
Price excludes taxes and shipping charges. Save -10%
£139.20 £154.67
UCN-01 1 mg
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Manufacturer: TOKU-E Item Number: U005-1MG
UCN-01 1 mg CAS number 112953-11-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£288.05 £320.05
UCN-01 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U005-5MG
UCN-01 5 mg CAS number 112953-11-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,005.26 £1,116.96
UCN-02 1 mg
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Manufacturer: TOKU-E Item Number: U006-1MG
UCN-02 1 mg CAS number 121569-61-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
UCN-02 5 mg
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Manufacturer: TOKU-E Item Number: U006-5MG
UCN-02 5 mg CAS number 121569-61-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
UK-1 1 mg
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Manufacturer: TOKU-E Item Number: U007-1MG
UK-1 1 mg CAS number 151271-53-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
UK-1 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U007-5MG
UK-1 5 mg CAS number 151271-53-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Umirolimus 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U008-1MG
Umirolimus 1 mg CAS number 851536-75-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£93.45 £103.83
Umirolimus 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U008-5MG
Umirolimus 5 mg CAS number 851536-75-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£324.65 £360.72
Ursolic Acid 1mg
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Manufacturer: TOKU-E Item Number: U010-1MG
Ursolic Acid 1mg CAS number 77-52-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£79.48 £88.31
Ursolic Acid 5mg
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Manufacturer: TOKU-E Item Number: U010-5MG
Ursolic Acid 5mg CAS number 77-52-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£275.04 £305.60
Usnic acid 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U009-25MG
Usnic acid 25 mg CAS number 125-46-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£195.56 £217.29
Usnic acid 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: U009-5MG
Usnic acid 5 mg CAS number 125-46-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Vaborbactam 10 mg
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Manufacturer: TOKU-E Item Number: V031-10MG
Vaborbactam 10 mg CAS number 1360457-46-0 and purity >=90.0%...
Price excludes taxes and shipping charges. Save -10%
£491.31 £545.90
Validamycin 1 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: V012-1G
Validamycin 1 g CAS number 37248-47-8 and purity (As is): ≥75%...
Price excludes taxes and shipping charges. Save -10%
£130.05 £144.50
Validamycin A EvoPure® 1 g
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Manufacturer: TOKU-E Item Number: V011-1G
Validamycin A EvoPure® 1 g CAS number 37248-47-8 and purity ≥99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£171.96 £191.07
Valinomycin 100 mg
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Manufacturer: TOKU-E Item Number: V015-100MG
Valinomycin 100 mg CAS number 2001-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Valinomycin 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: V015-25MG
Valinomycin 25 mg CAS number 2001-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Valnemulin 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: V016-25MG
Valnemulin 25 mg CAS number 101312-92-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£389.20 £432.44
Valnemulin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: V016-5MG
Valnemulin 5 mg CAS number 101312-92-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£111.27 £123.63
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