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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: A114-2.5MG
Actinopyrone A 2.5 mg CAS number 88378-59-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£912.78 £1,014.20
Manufacturer: TOKU-E Item Number: A148-1MG
Actinotetraose hexatiglate 1 mg CAS number 216590-44-2 and purity >95% by HPLC...
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£126.20 £140.22
Manufacturer: TOKU-E Item Number: A148-5MG
Actinotetraose hexatiglate 5 mg CAS number 216590-44-2 and purity >95% by HPLC...
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£440.74 £489.71
Manufacturer: TOKU-E Item Number: A090-50MG
Acyclovir (Acycloguanosine) 50 mg CAS number 59277-89-3 and purity (On Dried Basis): 98.5% - 101.0%...
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£126.20 £140.22
Manufacturer: TOKU-E Item Number: A091-100MG
Adenine 9-ß-D-arabinofuranoside (Vidarabine) 100 mg CAS number 5536-17-4 and purity 98.0 - 102.0% (HPLC)...
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£52.98 £58.87
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Manufacturer: TOKU-E Item Number: A091-500MG
Adenine 9-ß-D-arabinofuranoside (Vidarabine) 500 mg CAS number 5536-17-4 and purity 98.0 - 102.0% (HPLC)...
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£154.13 £171.26
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Manufacturer: TOKU-E Item Number: A026-100G
Adenine sulfate 100 g CAS number 321-30-2 and purity ≥99.0%...
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£320.80 £356.44
Manufacturer: TOKU-E Item Number: A026-25G
Adenine sulfate 25 g CAS number 321-30-2 and purity ≥99.0%...
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£115.12 £127.91
Manufacturer: TOKU-E Item Number: A170-100MG
Afatinib 100mg CAS number 850140-72-6 and purity ≥97%...
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£93.45 £103.83
Manufacturer: TOKU-E Item Number: A115-1MG
Aflatoxin B1 1 mg CAS number 1162-65-8 and purity >98% by HPLC...
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£88.15 £97.94
Manufacturer: TOKU-E Item Number: A115-5MG
Aflatoxin B1 5 mg CAS number 1162-65-8 and purity >98% by HPLC...
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£303.46 £337.18
Manufacturer: TOKU-E Item Number: A116-1MG
Aflatoxin B2 1 mg CAS number 7220-81-7 and purity >98% by HPLC...
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£103.08 £114.53
Manufacturer: TOKU-E Item Number: A116-5MG
Aflatoxin B2 5 mg CAS number 7220-81-7 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£356.92 £396.58
Manufacturer: TOKU-E Item Number: A117-1MG
Aflatoxin G1 1 mg CAS number 1165-39-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£103.08 £114.53
Manufacturer: TOKU-E Item Number: A117-5MG
Aflatoxin G1 5 mg CAS number 1165-39-5 and purity >98% by HPLC...
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£356.92 £396.58
Manufacturer: TOKU-E Item Number: A118-0.5MG
Aflatoxin G2 0.5 mg CAS number 7241-98-7 and purity >98% by HPLC...
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£149.81 £166.45
Manufacturer: TOKU-E Item Number: A118-2.5MG
Aflatoxin G2 2.5 mg CAS number 7241-98-7 and purity >98% by HPLC...
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£523.11 £581.23
Manufacturer: TOKU-E Item Number: A119-10MG
Alamethicin F50 10 mg CAS number 56165-93-6 and purity >95% by HPLC...
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£416.66 £462.95
Manufacturer: TOKU-E Item Number: A119-2.5MG
Alamethicin F50 2.5 mg CAS number 56165-93-6 and purity >95% by HPLC...
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£119.93 £133.26
Manufacturer: TOKU-E Item Number: A092-10G
Albendazole 10 g CAS number 54965-21-8 and purity 98.0 - 102.0%...
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£63.59 £70.65
Manufacturer: TOKU-E Item Number: A092-100MG
Albendazole 100 mg CAS number 54965-21-8 and purity 98.0 - 102.0%...
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£55.87 £62.08
Manufacturer: TOKU-E Item Number: A121-1MG
Albofungin 1 mg CAS number 37895-35-5 and purity >95% by HPLC...
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£261.55 £290.61
Manufacturer: TOKU-E Item Number: A121-5MG
Albofungin 5 mg CAS number 37895-35-5 and purity >95% by HPLC...
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£912.78 £1,014.20
Manufacturer: TOKU-E Item Number: A094-10G
Alizarin 10 g CAS number 72-48-0 and purity 0.97...
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£25.05 £27.83
Manufacturer: TOKU-E Item Number: L036-1MG
Alpha-lipomycin 1 mg CAS number 51053-40-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£261.55 £290.61
Manufacturer: TOKU-E Item Number: L036-5MG
Alpha-lipomycin 5 mg CAS number 51053-40-8 and purity >95% by HPLC...
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£912.78 £1,014.20
Manufacturer: TOKU-E Item Number: Z007-25MG
Alpha-zearalanol 25 mg CAS number 26538-44-3 and purity >95% by HPLC...
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£407.98 £453.31
Manufacturer: TOKU-E Item Number: Z007-5MG
Alpha-zearalanol 5 mg CAS number 26538-44-3 and purity >95% by HPLC...
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£117.53 £130.59
Manufacturer: TOKU-E Item Number: Z010-25MG
Alpha-zearalenol 25 mg CAS number 36455-72-8 and purity >95% by HPLC...
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£632.45 £702.72
Manufacturer: TOKU-E Item Number: Z010-5MG
Alpha-zearalenol 5 mg CAS number 36455-72-8 and purity >95% by HPLC...
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£181.59 £201.77
Manufacturer: TOKU-E Item Number: A181-1MG
Alphitonin 1 mg CAS number 493-36-7 and purity >95% by HPLC...
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£210.49 £233.88
Manufacturer: TOKU-E Item Number: A181-5MG
Alphitonin 5 mg CAS number 493-36-7 and purity >95% by HPLC...
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£733.60 £815.11
Manufacturer: TOKU-E Item Number: A203-0.1MG
Alternariol 0.1 mg CAS number 641-38-3 and purity >95% by HPLC...
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£149.81 £166.45
Manufacturer: TOKU-E Item Number: A203-0.5MG
Alternariol 0.5 mg CAS number 641-38-3 and purity >95% by HPLC...
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£523.11 £581.23
Manufacturer: TOKU-E Item Number: A204-0.1MG
Alternariol monomethylether 0.1 mg CAS number 23452-05-3 and purity >95% by HPLC...
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£149.81 £166.45
Manufacturer: TOKU-E Item Number: A204-0.5MG
Alternariol monomethylether 0.5 mg CAS number 23452-05-3 and purity >95% by HPLC...
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£523.11 £581.23
Manufacturer: TOKU-E Item Number: A172-100MG
Alvimopan 100mg CAS number 156053-89-3 and purity (On Dried Basis): 98-102%...
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£925.79 £1,028.65
Manufacturer: TOKU-E Item Number: A172-10MG
Alvimopan 10mg CAS number 156053-89-3 and purity (On Dried Basis): 98-102%...
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£98.26 £109.18
Manufacturer: TOKU-E Item Number: A205-1MG
Ambuic acid 1 mg CAS number 340774-69-8 and purity >95% by HPLC...
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£210.49 £233.88
Manufacturer: TOKU-E Item Number: A205-5MG
Ambuic acid 5 mg CAS number 340774-69-8 and purity >95% by HPLC...
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£733.60 £815.11
Manufacturer: TOKU-E Item Number: A237-0.5MG
Amicoumacin B 0.5 mg CAS number 82768-33-0 and purity >95% by HPLC...
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£123.31 £137.01
Manufacturer: TOKU-E Item Number: A237-2.5MG
Amicoumacin B 2.5 mg CAS number 82768-33-0 and purity >95% by HPLC...
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£429.17 £476.86
Manufacturer: TOKU-E Item Number: A002-5G
Amikacin 5g CAS number 37517-28-5 and purity (On Dried Basis): ≥900µg/mg...
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£394.97 £438.86
Manufacturer: TOKU-E Item Number: A002-1G
Amikacin 1g CAS number 37517-28-5 and purity (On Dried Basis): ≥900µg/mg...
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£90.56 £100.62
Manufacturer: TOKU-E Item Number: A225-1G
Amikacin Sulfate (1:1.8), AST grade 1g CAS number 39831-55-5 and purity (On Dried Basis): 691-806 µg/mg...
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£91.52 £101.69
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Manufacturer: TOKU-E Item Number: A225-5G
Amikacin Sulfate (1:1.8), AST grade 5g CAS number 39831-55-5 and purity (On Dried Basis): 691-806 µg/mg...
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£318.87 £354.30
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Manufacturer: TOKU-E Item Number: A070-1G
Amikacin Sulfate USP (1:1.8) 1 g CAS number 14902-22-0, 39831-55-5 and purity (On Dried Basis): 691-806 ug/mg...
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£77.55 £86.17
Manufacturer: TOKU-E Item Number: A070-5G
Amikacin Sulfate USP (1:1.8) 5 g CAS number 14902-22-0, 39831-55-5 and purity (On Dried Basis): 691-806 ug/mg...
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£247.10 £274.56
Manufacturer: TOKU-E Item Number: A003-1G
Amikacin Sulfate USP (1:2) 1 g CAS number 39831-55-5 and purity (On Dried Basis): 674-786 µg/mg...
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£81.41 £90.45
Manufacturer: TOKU-E Item Number: A003-5G
Amikacin Sulfate USP (1:2) 5 g CAS number 39831-55-5 and purity (On Dried Basis): 674-786 µg/mg...
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£272.15 £302.39
Manufacturer: TOKU-E Item Number: A206-100MG
Aminopterin 100 mg CAS number 54-62-6 and purity >96.0%...
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£123.31 £137.01
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