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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.

Nanangenine A 0.5 mg
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Manufacturer: TOKU-E Item Number: N072-0.5MG
Nanangenine A 0.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£54.91 £61.01
Nanangenine B 1 mg
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Manufacturer: TOKU-E Item Number: N073-1MG
Nanangenine B 1 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£189.30 £210.33
Nanangenine B 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N073-5MG
Nanangenine B 5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£660.38 £733.76
Nanangenine C 1 mg
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Manufacturer: TOKU-E Item Number: N074-1MG
Nanangenine C 1 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£189.30 £210.33
Nanangenine C 5 mg
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Manufacturer: TOKU-E Item Number: N074-5MG
Nanangenine C 5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£660.38 £733.76
Nanangenine D 0.5 mg
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Manufacturer: TOKU-E Item Number: N075-0.5MG
Nanangenine D 0.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£160.40 £178.22
Nanangenine D 2.5 mg
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Manufacturer: TOKU-E Item Number: N075-2.5MG
Nanangenine D 2.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£557.31 £619.23
Nanangenine F 0.5 mg
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Manufacturer: TOKU-E Item Number: N076-0.5MG
Nanangenine F 0.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Nanangenine F 2.5 mg
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Manufacturer: TOKU-E Item Number: N076-2.5MG
Nanangenine F 2.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Nanangenine G 1 mg
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Manufacturer: TOKU-E Item Number: N077-1MG
Nanangenine G 1 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£189.30 £210.33
Nanangenine G 5 mg
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Manufacturer: TOKU-E Item Number: N077-5MG
Nanangenine G 5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£660.38 £733.76
Nanangenine H 0.5 mg
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Manufacturer: TOKU-E Item Number: N078-0.5MG
Nanangenine H 0.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Nanangenine H 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N078-2.5MG
Nanangenine H 2.5 mg CAS number nan and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Narasin 25 mg
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Manufacturer: TOKU-E Item Number: N030-25MG
Narasin 25 mg CAS number 55134-13-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£610.29 £678.10
Narasin 5 mg
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Manufacturer: TOKU-E Item Number: N030-5MG
Narasin 5 mg CAS number 55134-13-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.33 £194.81
Narasin sodium 25 mg
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Manufacturer: TOKU-E Item Number: N033-25MG
Narasin sodium 25 mg CAS number 58331-17-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£416.66 £462.95
Narasin sodium 5 mg
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Manufacturer: TOKU-E Item Number: N033-5MG
Narasin sodium 5 mg CAS number 58331-17-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£119.93 £133.26
Nargenicin 1 mg
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Manufacturer: TOKU-E Item Number: N034-1MG
Nargenicin 1 mg CAS number 70695-02-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.33 £194.81
Nargenicin 5 mg
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Manufacturer: TOKU-E Item Number: N034-5MG
Nargenicin 5 mg CAS number 70695-02-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£610.29 £678.10
Natamycin 100 mg
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Manufacturer: TOKU-E Item Number: N002-100MG
Natamycin 100 mg CAS number 7681-93-8 and purity (On Dried Basis): ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£93.45 £103.83
Natamycin 1g
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Manufacturer: TOKU-E Item Number: N002-1G
Natamycin 1g CAS number 7681-93-8 and purity (On Dried Basis): ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£357.41 £397.12
Natamycin 50 mg
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Manufacturer: TOKU-E Item Number: N002-50MG
Natamycin 50 mg CAS number 7681-93-8 and purity (On Dried Basis): ≥95.0%...
Price excludes taxes and shipping charges. Save -10%
£52.98 £58.87
Nemadectin 10 mg
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Manufacturer: TOKU-E Item Number: N035-10MG
Nemadectin 10 mg CAS number 102130-84-7 and purity >95%...
Price excludes taxes and shipping charges. Save -10%
£35.16 £39.07
Nemadectin 50 mg
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Manufacturer: TOKU-E Item Number: N035-50MG
Nemadectin 50 mg CAS number 102130-84-7 and purity >95%...
Price excludes taxes and shipping charges. Save -10%
£159.92 £177.69
Neoantimycin 0.5 mg
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Manufacturer: TOKU-E Item Number: N036-0.5MG
Neoantimycin 0.5 mg CAS number 22862-63-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Neoantimycin 2.5 mg
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Manufacturer: TOKU-E Item Number: N036-2.5MG
Neoantimycin 2.5 mg CAS number 22862-63-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Neoaureothin 0.5 mg
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Manufacturer: TOKU-E Item Number: N037-0.5MG
Neoaureothin 0.5 mg CAS number 28900-27-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£267.34 £297.04
Neoaureothin 2.5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N037-2.5MG
Neoaureothin 2.5 mg CAS number 28900-27-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£931.09 £1,034.54
Neochlorogenic acid 10 mg
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Manufacturer: TOKU-E Item Number: N050-10MG
Neochlorogenic acid 10 mg CAS number 906-33-2 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
Neochlorogenic acid 50 mg
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Manufacturer: TOKU-E Item Number: N050-50MG
Neochlorogenic acid 50 mg CAS number 906-33-2 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£763.46 £848.29
Neomycin A Sulfate (Neamine) EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: N026-10MG
Neomycin A Sulfate (Neamine) EvoPure® 10 mg CAS number 3947-65-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.97 £307.74
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Neomycin B Sulfate EvoPure® 10mg
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Manufacturer: TOKU-E Item Number: N019-10MG
Neomycin B Sulfate EvoPure® 10mg CAS number 4146-30-9 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.97 £307.74
Neomycin C Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: N022-10MG
Neomycin C Sulfate EvoPure® 10 mg CAS number 66-86-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£276.97 £307.74
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Neomycin solution (10 mg/mL Neomycin in 0.9% NaCl) 10 x 100 mL
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Manufacturer: TOKU-E Item Number: N027-10x100ML
Neomycin solution (10 mg/mL Neomycin in 0.9% NaCl) 10 x 100 mL CAS number 1405-10-3 and purity not reported...
Price excludes taxes and shipping charges. Save -10%
£310.68 £345.20
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Neomycin solution (10 mg/mL Neomycin in 0.9% NaCl) 100 mL
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Manufacturer: TOKU-E Item Number: N027-100ML
Neomycin solution (10 mg/mL Neomycin in 0.9% NaCl) 100 mL CAS number 1405-10-3 and purity not reported...
Price excludes taxes and shipping charges. Save -10%
£64.55 £71.72
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Neomycin Sulfate EP 100 g
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Manufacturer: TOKU-E Item Number: N012-100G
Neomycin Sulfate EP 100 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£97.30 £108.11
Neomycin Sulfate EP 25 g
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Manufacturer: TOKU-E Item Number: N012-25G
Neomycin Sulfate EP 25 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Neomycin Sulfate EP 500 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N012-500G
Neomycin Sulfate EP 500 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£463.86 £515.40
Neomycin Sulfate USP 100 g
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Manufacturer: TOKU-E Item Number: N003-100G
Neomycin Sulfate USP 100 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£107.42 £119.35
Neomycin Sulfate USP 25 g
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Manufacturer: TOKU-E Item Number: N003-25G
Neomycin Sulfate USP 25 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£55.87 £62.08
Neomycin Sulfate USP 500 g
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Manufacturer: TOKU-E Item Number: N003-500G
Neomycin Sulfate USP 500 g CAS number 1405-10-3 and purity (Dry basis): ≥680 IU/mg...
Price excludes taxes and shipping charges. Save -10%
£463.86 £515.40
Neosartoricin 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N079-1MG
Neosartoricin 1 mg CAS number 1421941-29-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Neosartoricin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N079-5MG
Neosartoricin 5 mg CAS number 1421941-29-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Neosartoricin B 1 mg
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Manufacturer: TOKU-E Item Number: N080-1MG
Neosartoricin B 1 mg CAS number 1421708-43-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Neosartoricin B 5 mg
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Manufacturer: TOKU-E Item Number: N080-5MG
Neosartoricin B 5 mg CAS number 1421708-43-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£733.60 £815.11
Neratinib 10mg
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Manufacturer: TOKU-E Item Number: N067-10MG
Neratinib 10mg CAS number 698387-09-6 and purity ≥99% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£53.95 £59.94
Neratinib 50mg
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Manufacturer: TOKU-E Item Number: N067-50MG
Neratinib 50mg CAS number 698387-09-6 and purity ≥99% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£104.53 £116.14
Neratinib Maleate 100mg
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Manufacturer: TOKU-E Item Number: N068-100MG
Neratinib Maleate 100mg CAS number 915942-22-2 and purity ≥99% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£156.06 £173.40
Neratinib Maleate 250mg
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Manufacturer: TOKU-E Item Number: N068-250MG
Neratinib Maleate 250mg CAS number 915942-22-2 and purity ≥99% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£236.50 £262.78
Netilmicin sulfate 10 mg
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Manufacturer: TOKU-E Item Number: N004-10MG
Netilmicin sulfate 10 mg CAS number 56391-57-2 and purity (On Dried Basis): ≥595 μg/mg...
Price excludes taxes and shipping charges. Save -10%
£80.44 £89.38
Netilmicin sulfate 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: N004-100MG
Netilmicin sulfate 100 mg CAS number 56391-57-2 and purity (On Dried Basis): ≥595 μg/mg...
Price excludes taxes and shipping charges. Save -10%
£415.21 £461.34
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