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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: A210-1MG
Anagyrine 1 mg CAS number 486-89-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£216.27 £240.30
Manufacturer: TOKU-E Item Number: A210-5MG
Anagyrine 5 mg CAS number 486-89-5 and purity >95% by HPLC...
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£754.79 £838.66
Manufacturer: TOKU-E Item Number: A211-0.1MG
Anandamide 0.1 mg CAS number 94421-68-8 and purity >95% by HPLC...
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£80.44 £89.38
Manufacturer: TOKU-E Item Number: A211-0.5MG
Anandamide 0.5 mg CAS number 94421-68-8 and purity >95% by HPLC...
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£280.82 £312.02
Manufacturer: TOKU-E Item Number: A122-0.1MG
Anguinomycin A 0.1 mg CAS number 111278-01-4 and purity >95% by HPLC...
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£348.26 £386.95
Manufacturer: TOKU-E Item Number: A122-0.5MG
Anguinomycin A 0.5 mg CAS number 111278-01-4 and purity >95% by HPLC...
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£1,217.69 £1,352.99
Manufacturer: TOKU-E Item Number: A072-10MG
Anhydrochlortetracycline HCl EvoPure® 10 mg CAS number 4497-08-9 and purity >95% by HPLC...
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£171.96 £191.07
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Manufacturer: TOKU-E Item Number: A123-1MG
Anhydroepiophiobolin A 1 mg CAS number 90411-20-4 and purity >95% by HPLC ...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Manufacturer: TOKU-E Item Number: A123-5MG
Anhydroepiophiobolin A 5 mg CAS number 90411-20-4 and purity >95% by HPLC ...
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£949.87 £1,055.41
Manufacturer: TOKU-E Item Number: A079-5MG
Anhydroerythromycin A EvoPure® 5 mg CAS number 23893-13-2 and purity >95% by HPLC...
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£363.19 £403.54
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Manufacturer: TOKU-E Item Number: A124-1MG
Anhydroophiobolin A 1 mg CAS number 6026-65-9 and purity >95% by HPLC...
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£272.63 £302.92
Manufacturer: TOKU-E Item Number: A124-5MG
Anhydroophiobolin A 5 mg CAS number 6026-65-9 and purity >95% by HPLC...
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£949.87 £1,055.41
Manufacturer: TOKU-E Item Number: T055-100MG
Anhydrotetracycline HCl EvoPure® 100 mg CAS number 13803-65-1 and purity ≥98.0% (HPLC as is)...
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£191.71 £213.01
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Manufacturer: TOKU-E Item Number: A041-10MG
Anidulafungin 10 mg CAS number 166663-25-8 and purity ≥99.0%...
Price excludes taxes and shipping charges. Save -10%
£220.61 £245.12
Manufacturer: TOKU-E Item Number: A041-5x10MG
Anidulafungin 5 x 10mg CAS number 166663-25-9 and purity ≥99.0%...
Price excludes taxes and shipping charges. Save -10%
£993.71 £1,104.12
Manufacturer: TOKU-E Item Number: A021-100MG
Anisomycin 100 mg CAS number 22862-76-6 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£462.41 £513.79
Manufacturer: TOKU-E Item Number: A021-25MG
Anisomycin 25 mg CAS number 22862-76-6 and purity (On Dried Basis): ≥98.0%...
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£152.21 £169.12
Manufacturer: TOKU-E Item Number: A226-10x0.5ML
Anisomycin ReadyMade™ Solution 10 x 0.5 ml CAS number 22862-76-6 and purity >=98%...
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£145.95 £162.17
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Manufacturer: TOKU-E Item Number: A212-0.1MG
Ansamitocin P3 0.1 mg CAS number 66584-72-3 and purity >95% by HPLC...
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£149.81 £166.45
Manufacturer: TOKU-E Item Number: A212-0.5MG
Ansamitocin P3 0.5 mg CAS number 66584-72-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£523.11 £581.23
Manufacturer: TOKU-E Item Number: A125-1MG
Ansatrienin A 1 mg CAS number 82189-03-5 and purity >95% by HPLC ...
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£162.32 £180.36
Manufacturer: TOKU-E Item Number: A125-5MG
Ansatrienin A 5 mg CAS number 82189-03-5 and purity >95% by HPLC ...
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£566.94 £629.93
Manufacturer: TOKU-E Item Number: A126-1MG
Ansatrienin B 1 mg CAS number 82189-04-6 and purity >95% by HPLC (< 5% Ansatrienin A)...
Price excludes taxes and shipping charges. Save -10%
£297.68 £330.75
Manufacturer: TOKU-E Item Number: A126-5MG
Ansatrienin B 5 mg CAS number 82189-04-6 and purity >95% by HPLC (< 5% Ansatrienin A)...
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£1,041.39 £1,157.10
Manufacturer: TOKU-E Item Number: A045-10x100ML
Antibiotic-Antimycotic Solution (100X) 10 x 100 mL CAS number 61-33-6; 57-92-1; 1397-89-3 and purity Amphotericin B: 25-30µg/mL Penicillin G Sodium: 1..
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£744.19 £826.88
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Manufacturer: TOKU-E Item Number: A100-2x25G
Antimony potassium tartrate trihydrate 2 x 25 g CAS number 28300-74-5 and purity ≥99%...
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£43.83 £48.70
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Manufacturer: TOKU-E Item Number: A100-4x25G
Antimony potassium tartrate trihydrate 4 x 25 g CAS number 28300-74-5 and purity ≥99%...
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£71.77 £79.74
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Manufacturer: TOKU-E Item Number: A129-25MG
Antimycin 25 mg CAS number 1397-94-0 and purity >95% by HPLC...
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£200.38 £222.64
Manufacturer: TOKU-E Item Number: A129-5MG
Antimycin 5 mg CAS number 1397-94-0 and purity >95% by HPLC...
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£58.28 £64.76
Manufacturer: TOKU-E Item Number: A127-0.5MG
Antimycin A1 0.5 mg CAS number 642-15-9 and purity >95% by HPLC...
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£230.72 £256.36
Manufacturer: TOKU-E Item Number: A127-2.5MG
Antimycin A1 2.5 mg CAS number 642-15-9 and purity >95% by HPLC...
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£805.85 £895.39
Manufacturer: TOKU-E Item Number: A101-0.5MG
Antimycin A2 0.5 mg CAS number 27220-57-1 and purity >95% by HPLC...
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£230.72 £256.36
Manufacturer: TOKU-E Item Number: A101-2.5MG
Antimycin A2 2.5 mg CAS number 27220-57-1 and purity >95% by HPLC...
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£805.85 £895.39
Manufacturer: TOKU-E Item Number: A102-1MG
Antimycin A3 1 mg CAS number 522-70-3 and purity >95% by HPLC...
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£230.72 £256.36
Manufacturer: TOKU-E Item Number: A102-5MG
Antimycin A3 5 mg CAS number 522-70-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£805.85 £895.39
Manufacturer: TOKU-E Item Number: A128-0.5MG
Antimycin A4 0.5 mg CAS number 27220-59-3 and purity >95% by HPLC...
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£230.72 £256.36
Manufacturer: TOKU-E Item Number: A128-2.5MG
Antimycin A4 2.5 mg CAS number 27220-59-3 and purity >95% by HPLC...
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£805.85 £895.39
Manufacturer: TOKU-E Item Number: A103-1MG
Aphidicolin 1 mg CAS number 38966-21-1 and purity >95% by HPLC...
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£131.50 £146.11
Manufacturer: TOKU-E Item Number: A103-5MG
Aphidicolin 5 mg CAS number 38966-21-1 and purity >95% by HPLC...
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£460.01 £511.12
Manufacturer: TOKU-E Item Number: A104-10MG
Apicidin 10 mg CAS number 183506-66-3 and purity >95% by HPLC...
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£520.22 £578.02
Manufacturer: TOKU-E Item Number: A104-2MG
Apicidin 2 mg CAS number 183506-66-3 and purity >95% by HPLC...
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£149.81 £166.45
Manufacturer: TOKU-E Item Number: A106-100MG
Apigenin (from Apium graveolens) 100 mg CAS number 520-36-5 and purity (HPLC): ≥ 98.0%...
Price excludes taxes and shipping charges. Save -10%
£300.09 £333.43
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Manufacturer: TOKU-E Item Number: A106-25MG
Apigenin (from Apium graveolens) 25 mg CAS number 520-36-5 and purity (HPLC): ≥ 98.0%...
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£98.26 £109.18
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Manufacturer: TOKU-E Item Number: A107-100MG
Apigenin (from Matricaria recutita) 100 mg CAS number 520-36-5 and purity (HPLC): ≥ 98.0%...
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£300.09 £333.43
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Manufacturer: TOKU-E Item Number: A107-25MG
Apigenin (from Matricaria recutita) 25 mg CAS number 520-36-5 and purity (HPLC): ≥ 98.0%...
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£98.26 £109.18
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Manufacturer: TOKU-E Item Number: A130-0.1MG
Apoptolidin 0.1 mg CAS number 194874-06-1 and purity >95% by HPLC...
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£261.55 £290.61
Manufacturer: TOKU-E Item Number: A130-0.5MG
Apoptolidin 0.5 mg CAS number 194874-06-1 and purity >95% by HPLC...
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£912.78 £1,014.20
Manufacturer: TOKU-E Item Number: A013-25MG
Apramycin 25 mg CAS number 37321-09-8 and purity >95% by HPLC...
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£315.50 £350.56
Manufacturer: TOKU-E Item Number: A013-5MG
Apramycin 5 mg CAS number 37321-09-8 and purity >95% by HPLC...
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£91.04 £101.15
Manufacturer: TOKU-E Item Number: A014-1G
Apramycin Sulfate 1 g CAS number 65710-07-8 and purity (On Dried Basis): ≥550 units/mg...
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£65.51 £72.79
Manufacturer: TOKU-E Item Number: A014-5G
Apramycin Sulfate 5 g CAS number 65710-07-8 and purity (On Dried Basis): ≥550 units/mg...
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£256.26 £284.73
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