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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.

Manufacturer: TOKU-E Item Number: E085-5MG
Euphol acetate 5 mg CAS number 13879-04-4 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£562.12 £624.58
Manufacturer: TOKU-E Item Number: E058-20MG
Everolimus 20 mg CAS number 159351-69-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£160.88 £178.76
Manufacturer: TOKU-E Item Number: E058-50MG
Everolimus 50 mg CAS number 159351-69-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£277.45 £308.28
Manufacturer: TOKU-E Item Number: E084-1MG
Evoxanthine 1 mg CAS number 477-82-7 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£181.11 £201.24
Manufacturer: TOKU-E Item Number: E084-5MG
Evoxanthine 5 mg CAS number 477-82-7 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£633.41 £703.79
Manufacturer: TOKU-E Item Number: E059-1MG
Extracellular Death Factor 1 mg CAS number 960129-66-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£91.52 £101.69
Manufacturer: TOKU-E Item Number: E059-5MG
Extracellular Death Factor 5 mg CAS number 960129-66-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£318.39 £353.77
Manufacturer: TOKU-E Item Number: F016-50MG
Faropenem sodium 50mg CAS number 122547-49-3 and purity ≥ 99.0%...
Price excludes taxes and shipping charges. Save -10%
£284.67 £316.30
Manufacturer: TOKU-E Item Number: F024-1MG
Feglymycin 1 mg CAS number 209335-49-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£269.74 £299.71
Manufacturer: TOKU-E Item Number: F024-5MG
Feglymycin 5 mg CAS number 209335-49-9 and purity >95% by HPLC...
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£940.24 £1,044.71
Manufacturer: TOKU-E Item Number: F042-100G
Fenbendazole 100g CAS number 43210-67-9 and purity (On Dried Basis): 98-101.0%...
Price excludes taxes and shipping charges. Save -10%
£374.27 £415.85
Manufacturer: TOKU-E Item Number: F042-10G
Fenbendazole 10g CAS number 43210-67-9 and purity (On Dried Basis): 98-101.0%...
Price excludes taxes and shipping charges. Save -10%
£118.01 £131.12
Manufacturer: TOKU-E Item Number: F042-5G
Fenbendazole 5g CAS number 43210-67-9 and purity (On Dried Basis): 98-101.0%...
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£65.51 £72.79
Manufacturer: TOKU-E Item Number: F048-25MG
Fervenulin 25 mg CAS number 483-57-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£665.68 £739.65
Manufacturer: TOKU-E Item Number: F048-5MG
Fervenulin 5 mg CAS number 483-57-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£190.75 £211.94
Manufacturer: TOKU-E Item Number: F025-100MG
Fidaxomicin 100 mg CAS number 873857-62-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£173.40 £192.67
Manufacturer: TOKU-E Item Number: F025-50MG
Fidaxomicin 50 mg CAS number 873857-62-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£101.63 £112.93
Manufacturer: TOKU-E Item Number: F020-25MG
Filipin 25 mg CAS number 11078-21-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£795.25 £883.62
Manufacturer: TOKU-E Item Number: F020-5MG
Filipin 5 mg CAS number 11078-21-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£228.32 £253.68
Manufacturer: TOKU-E Item Number: F026-0.5MG
Filipin II 0.5 mg CAS number 38620-77-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£269.74 £299.71
Manufacturer: TOKU-E Item Number: F026-2.5MG
Filipin II 2.5 mg CAS number 38620-77-8 and purity >95% by HPLC...
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£940.24 £1,044.71
Manufacturer: TOKU-E Item Number: F021-1MG
Filipin III 1 mg CAS number 480-49-9 and purity >95% by HPLC...
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£228.32 £253.68
Manufacturer: TOKU-E Item Number: F021-5MG
Filipin III 5 mg CAS number 480-49-9 and purity >95% by HPLC...
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£795.25 £883.62
Manufacturer: TOKU-E Item Number: F035-100MG
Fipronil 100 mg CAS number 120068-37-3 and purity 98-102% (HPLC)...
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£245.66 £272.95
Manufacturer: TOKU-E Item Number: F035-25MG
Fipronil 25 mg CAS number 120068-37-3 and purity 98-102% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£57.80 £64.22
Manufacturer: TOKU-E Item Number: F001-10MG
FK506 (Tacrolimus) 10 mg CAS number 109581-93-3 and purity ≥ 98.0%...
Price excludes taxes and shipping charges. Save -10%
£133.43 £148.25
Manufacturer: TOKU-E Item Number: F055-10MG
Flomoxef Free Acid 10 mg CAS number 99665-00-6 and purity >=98.5%...
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£123.31 £137.01
Manufacturer: TOKU-E Item Number: F041-10MG
Flomoxef Sodium 10mg CAS number 92823-03-5 and purity (On Dried Basis): 870-985 ug/mg...
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£118.01 £131.12
Manufacturer: TOKU-E Item Number: F049-1MG
Floramultine 1 mg CAS number 1354-66-1 and purity >98% by HPLC...
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£217.24 £241.38
Manufacturer: TOKU-E Item Number: F049-5MG
Floramultine 5 mg CAS number 1354-66-1 and purity >98% by HPLC...
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£755.76 £839.73
Manufacturer: TOKU-E Item Number: F002-1G
Florfenicol 1 g CAS number 73231-34-2 and purity (On Dried Basis): ≥98.0%...
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£150.77 £167.52
Manufacturer: TOKU-E Item Number: F002-5G
Florfenicol 5 g CAS number 73231-34-2 and purity (On Dried Basis): ≥98.0%...
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£410.39 £455.99
Manufacturer: TOKU-E Item Number: F027-1MG
Florfenicol Amine 1 mg CAS number 76639-93-5 and purity >99% by HPLC...
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£96.34 £107.04
Manufacturer: TOKU-E Item Number: F027-5MG
Florfenicol Amine 5 mg CAS number 76639-93-5 and purity >99% by HPLC...
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£334.77 £371.96
Manufacturer: TOKU-E Item Number: F040-25G
Flubendazole 25 g CAS number 31430-15-6 and purity 99.0 - 101.0%...
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£249.03 £276.70
Manufacturer: TOKU-E Item Number: F040-5G
Flubendazole 5 g CAS number 31430-15-6 and purity 99.0 - 101.0%...
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£57.80 £64.22
Manufacturer: TOKU-E Item Number: F009-10MG
Flucloxacillin sodium 10 mg CAS number 1847-24-1 and purity 95.0 - 102.0%...
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£101.63 £112.93
Manufacturer: TOKU-E Item Number: F009-50MG
Flucloxacillin sodium 50 mg CAS number 1847-24-1 and purity 95.0 - 102.0%...
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£377.64 £419.60
Manufacturer: TOKU-E Item Number: F010-100MG
Fluconazole 100 mg CAS number 86386-73-4 and purity (On Dried Basis): 98.0-102.0%...
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£112.71 £125.24
Manufacturer: TOKU-E Item Number: F011-1G
Flumequine 1 g CAS number 42835-25-6 and purity (On Dried Basis): 99.0-101.0%...
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£49.13 £54.59
Manufacturer: TOKU-E Item Number: F011-10G
Flumequine 10 g CAS number 42835-25-6 and purity (On Dried Basis): 99.0-101.0%...
Price excludes taxes and shipping charges. Save -10%
£271.19 £301.32
Manufacturer: TOKU-E Item Number: F011-5G
Flumequine 5 g CAS number 42835-25-6 and purity (On Dried Basis): 99.0-101.0%...
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£153.66 £170.73
Manufacturer: TOKU-E Item Number: F039-100MG
Flumethasone 100 mg CAS number 2135-17-3 and purity (On Dried Basis): 97-103%...
Price excludes taxes and shipping charges. Save -10%
£126.20 £140.22
Manufacturer: TOKU-E Item Number: F039-500MG
Flumethasone 500 mg CAS number 2135-17-3 and purity (On Dried Basis): 97-103%...
Price excludes taxes and shipping charges. Save -10%
£503.36 £559.28
Manufacturer: TOKU-E Item Number: F045-5G
Fluorescein Diacetate 5 g CAS number 596-09-08 and purity >=99.0%...
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£59.73 £66.36
Manufacturer: TOKU-E Item Number: F036-1G
Flurbiprofen 1 g CAS number 5104-49-4 and purity ≥99%...
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£124.27 £138.08
Manufacturer: TOKU-E Item Number: F036-25G
Flurbiprofen 25 g CAS number 5104-49-4 and purity ≥99%...
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£1,150.25 £1,278.06
Manufacturer: TOKU-E Item Number: F036-5G
Flurbiprofen 5 g CAS number 5104-49-4 and purity ≥99%...
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£460.00 £511.12
Manufacturer: TOKU-E Item Number: F037-1G
Flurbiprofen Sodium 1 g CAS number 56767-76-1 and purity ≥99%...
Price excludes taxes and shipping charges. Save -10%
£124.27 £138.08
Manufacturer: TOKU-E Item Number: F037-25G
Flurbiprofen Sodium 25 g CAS number 56767-76-1 and purity ≥99%...
Price excludes taxes and shipping charges. Save -10%
£1,150.25 £1,278.06
Manufacturer: TOKU-E Item Number: F037-5G
Flurbiprofen Sodium 5 g CAS number 56767-76-1 and purity ≥99%...
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£460.00 £511.12
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