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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.

Erythromycylamine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: E057-1MG
Erythromycylamine 1 mg CAS number 26116-56-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Erythromycylamine 5 mg
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Manufacturer: TOKU-E Item Number: E057-5MG
Erythromycylamine 5 mg CAS number 26116-56-3 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Etamsylate 1g
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Manufacturer: TOKU-E Item Number: E045-1G
Etamsylate 1g CAS number 2624-44-4 and purity 99.0 - 101.0 %...
Price excludes taxes and shipping charges. Save -10%
£121.38 £134.87
Etamsylate 5g
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Manufacturer: TOKU-E Item Number: E045-5G
Etamsylate 5g CAS number 2624-44-4 and purity 99.0 - 101.0 %...
Price excludes taxes and shipping charges. Save -10%
£461.45 £512.72
Ethambutol 100 g
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Manufacturer: TOKU-E Item Number: E009-100G
Ethambutol 100 g CAS number 74-55-5 and purity (On Dried Basis): 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£789.96 £877.73
Ethambutol 25 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: E009-25G
Ethambutol 25 g CAS number 74-55-5 and purity (On Dried Basis): 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£220.61 £245.12
Ethambutol dihydrochloride 100 g
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Manufacturer: TOKU-E Item Number: E005-100G
Ethambutol dihydrochloride 100 g CAS number 1070-11-7 and purity (On Dried Basis): 98.0-100.5%...
Price excludes taxes and shipping charges. Save -10%
£513.47 £570.52
Ethambutol dihydrochloride 25 g
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Manufacturer: TOKU-E Item Number: E005-25G
Ethambutol dihydrochloride 25 g CAS number 1070-11-7 and purity (On Dried Basis): 98.0-100.5%...
Price excludes taxes and shipping charges. Save -10%
£147.88 £164.31
Ethionamide 100 g
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Manufacturer: TOKU-E Item Number: E010-100G
Ethionamide 100 g CAS number 536-33-4 and purity (On Dried Basis): 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£832.82 £925.36
Ethionamide 25 g
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Manufacturer: TOKU-E Item Number: E010-25G
Ethionamide 25 g CAS number 536-33-4 and purity (On Dried Basis): 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£398.35 £442.61
Ethionamide 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: E010-5G
Ethionamide 5 g CAS number 536-33-4 and purity (On Dried Basis): 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£90.56 £100.62
Ethyl Mycophenolate 1 mg
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Manufacturer: TOKU-E Item Number: E092-1MG
Ethyl Mycophenolate 1 mg CAS number 32483-51-5 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£175.82 £195.35
Ethyl Mycophenolate 5 mg
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Manufacturer: TOKU-E Item Number: E092-5MG
Ethyl Mycophenolate 5 mg CAS number 32483-51-5 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£614.63 £682.92
Etoposide 100 mg
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Manufacturer: TOKU-E Item Number: E066-100MG
Etoposide 100 mg CAS number 33419-42-0 and purity ≥ 99.0%...
Price excludes taxes and shipping charges. Save -10%
£154.13 £171.26
Etoposide 25 mg
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Manufacturer: TOKU-E Item Number: E066-25MG
Etoposide 25 mg CAS number 33419-42-0 and purity ≥ 99.0%...
Price excludes taxes and shipping charges. Save -10%
£59.72 £66.36
Euphol acetate 1 mg
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Manufacturer: TOKU-E Item Number: E085-1MG
Euphol acetate 1 mg CAS number 13879-04-4 and purity ≥95% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£157.03 £174.48
Euphol acetate 5 mg
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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%
£545.74 £606.38
Everolimus 20 mg
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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%
£156.06 £173.40
Everolimus 50 mg
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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%
£269.26 £299.18
Evoxanthine 1 mg
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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%
£175.82 £195.35
Evoxanthine 5 mg
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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%
£614.63 £682.92
Extracellular Death Factor 1 mg
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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%
£88.63 £98.48
Extracellular Death Factor 5 mg
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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%
£308.75 £343.06
Faropenem sodium 50mg
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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%
£276.00 £306.67
Feglymycin 1 mg
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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%
£261.55 £290.61
Feglymycin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F024-5MG
Feglymycin 5 mg CAS number 209335-49-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Fenbendazole 100g
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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%
£363.19 £403.54
Fenbendazole 10g
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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%
£114.16 £126.84
Fenbendazole 5g
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Manufacturer: TOKU-E Item Number: F042-5G
Fenbendazole 5g CAS number 43210-67-9 and purity (On Dried Basis): 98-101.0%...
Price excludes taxes and shipping charges. Save -10%
£63.59 £70.65
Fervenulin 25 mg
Actual product may differ from image
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%
£645.93 £717.70
Fervenulin 5 mg
Actual product may differ from image
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%
£184.97 £205.52
Fidaxomicin 100 mg
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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%
£168.10 £186.78
Fidaxomicin 50 mg
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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%
£98.26 £109.18
Filipin 25 mg
Actual product may differ from image
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%
£771.65 £857.39
Filipin 5 mg
Actual product may differ from image
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%
£221.57 £246.19
Filipin II 0.5 mg
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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%
£261.55 £290.61
Filipin II 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F026-2.5MG
Filipin II 2.5 mg CAS number 38620-77-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Filipin III 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F021-1MG
Filipin III 1 mg CAS number 480-49-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£221.57 £246.19
Filipin III 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F021-5MG
Filipin III 5 mg CAS number 480-49-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£771.65 £857.39
Fipronil 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F035-100MG
Fipronil 100 mg CAS number 120068-37-3 and purity 98-102% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£238.43 £264.92
Fipronil 25 mg
Actual product may differ from image
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%
£55.87 £62.08
FK506 (Tacrolimus) 10 mg
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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%
£129.09 £143.43
Flomoxef Free Acid 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F055-10MG
Flomoxef Free Acid 10 mg CAS number 99665-00-6 and purity >=98.5%...
Price excludes taxes and shipping charges. Save -10%
£119.46 £132.73
Flomoxef Sodium 10mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F041-10MG
Flomoxef Sodium 10mg CAS number 92823-03-5 and purity (On Dried Basis): 870-985 ug/mg...
Price excludes taxes and shipping charges. Save -10%
£114.16 £126.84
Floramultine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F049-1MG
Floramultine 1 mg CAS number 1354-66-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Floramultine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F049-5MG
Floramultine 5 mg CAS number 1354-66-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Florfenicol 1 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F002-1G
Florfenicol 1 g CAS number 73231-34-2 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£145.95 £162.17
Florfenicol 5 g
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Manufacturer: TOKU-E Item Number: F002-5G
Florfenicol 5 g CAS number 73231-34-2 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£398.35 £442.61
Florfenicol Amine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F027-1MG
Florfenicol Amine 1 mg CAS number 76639-93-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£93.45 £103.83
Florfenicol Amine 5 mg
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Manufacturer: TOKU-E Item Number: F027-5MG
Florfenicol Amine 5 mg CAS number 76639-93-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£324.65 £360.72
Flubendazole 25 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: F040-25G
Flubendazole 25 g CAS number 31430-15-6 and purity 99.0 - 101.0%...
Price excludes taxes and shipping charges. Save -10%
£241.33 £268.14
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