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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.

Colchicine 500 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C093-500MG
Colchicine 500 mg CAS number 64-86-8 and purity ≥98.0% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£73.70 £81.89
Colistin Sodium Methanesulfonate 1 g
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Manufacturer: TOKU-E Item Number: C073-1G
Colistin Sodium Methanesulfonate 1 g CAS number 8068-28-8 and purity ≥390 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£133.43 £148.25
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Colistin Sodium Methanesulfonate 10 g
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Manufacturer: TOKU-E Item Number: C073-10G
Colistin Sodium Methanesulfonate 10 g CAS number 8068-28-8 and purity ≥390 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£992.26 £1,102.51
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Colistin Sodium Methanesulfonate 5 g
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Manufacturer: TOKU-E Item Number: C073-5G
Colistin Sodium Methanesulfonate 5 g CAS number 8068-28-8 and purity ≥390 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£514.43 £571.59
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Colistin Sulfate EP 1 g
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Manufacturer: TOKU-E Item Number: C039-1G
Colistin Sulfate EP 1 g CAS number 1264-72-8 and purity (On Dried Basis): ≥19,000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£189.78 £210.87
Colistin Sulfate EP 100 mg
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Manufacturer: TOKU-E Item Number: C039-100MG
Colistin Sulfate EP 100 mg CAS number 1264-72-8 and purity (On Dried Basis): ≥19,000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£46.72 £51.91
Colistin Sulfate USP 1 g
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Manufacturer: TOKU-E Item Number: C083-1G
Colistin Sulfate USP 1 g CAS number 1264-72-8 and purity ≥ 500 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£180.63 £200.70
Colistin Sulfate USP 100 mg
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Manufacturer: TOKU-E Item Number: C083-100MG
Colistin Sulfate USP 100 mg CAS number 1264-72-8 and purity ≥ 500 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£44.79 £49.77
Collinin 1 mg
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Manufacturer: TOKU-E Item Number: C256-1MG
Collinin 1 mg CAS number 34465-83-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£205.68 £228.53
Collinin 5 mg
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Manufacturer: TOKU-E Item Number: C256-5MG
Collinin 5 mg CAS number 34465-83-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£719.63 £799.59
Collismycin 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C181-1MG
Collismycin 1 mg CAS number 158792-24-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Collismycin 5 mg
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Manufacturer: TOKU-E Item Number: C181-5MG
Collismycin 5 mg CAS number 158792-24-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Concanamycin A 0.25 mg
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Manufacturer: TOKU-E Item Number: C182-0.25MG
Concanamycin A 0.25 mg CAS number 80890-47-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£238.43 £264.92
Concanamycin A 1 mg
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Manufacturer: TOKU-E Item Number: C182-1MG
Concanamycin A 1 mg CAS number 80890-47-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Concanamycin B 0.25 mg
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Manufacturer: TOKU-E Item Number: C183-0.25MG
Concanamycin B 0.25 mg CAS number 81552-33-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Concanamycin B 1 mg
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Manufacturer: TOKU-E Item Number: C183-1MG
Concanamycin B 1 mg CAS number 81552-33-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,162.30 £1,291.44
Conglobatin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C125-5MG
Conglobatin 5 mg CAS number 72263-05-9 and purity ≥ 95%...
Price excludes taxes and shipping charges. Save -10%
£366.56 £407.29
Conglobatin B 0.1 mg
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Manufacturer: TOKU-E Item Number: C270-0.1MG
Conglobatin B 0.1 mg CAS number nan and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£157.03 £174.48
Conglobatin B 0.5 mg
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Manufacturer: TOKU-E Item Number: C270-0.5MG
Conglobatin B 0.5 mg CAS number nan and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£545.74 £606.38
Cordycepin 10 mg
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Manufacturer: TOKU-E Item Number: C204-10MG
Cordycepin 10 mg CAS number 73-03-0 and purity ≥ 98%...
Price excludes taxes and shipping charges. Save -10%
£116.57 £129.52
Cordycepin 25 mg
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Manufacturer: TOKU-E Item Number: C204-25MG
Cordycepin 25 mg CAS number 73-03-0 and purity ≥ 98%...
Price excludes taxes and shipping charges. Save -10%
£238.43 £264.92
Corynecin I 1 mg
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Manufacturer: TOKU-E Item Number: C184-1MG
Corynecin I 1 mg CAS number 4423-58-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Corynecin I 5 mg
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Manufacturer: TOKU-E Item Number: C184-5MG
Corynecin I 5 mg CAS number 4423-58-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Corynecin II 1 mg
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Manufacturer: TOKU-E Item Number: C185-1MG
Corynecin II 1 mg CAS number 35098-52-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Corynecin II 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C185-5MG
Corynecin II 5 mg CAS number 35098-52-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Corynecin III 1 mg
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Manufacturer: TOKU-E Item Number: C186-1MG
Corynecin III 1 mg CAS number 18048-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Corynecin III 5 mg
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Manufacturer: TOKU-E Item Number: C186-5MG
Corynecin III 5 mg CAS number 18048-95-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Corynecin IV 1 mg
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Manufacturer: TOKU-E Item Number: C187-1MG
Corynecin IV 1 mg CAS number 40958-11-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Corynecin IV 5 mg
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Manufacturer: TOKU-E Item Number: C187-5MG
Corynecin IV 5 mg CAS number 40958-11-0 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Corynecin V 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C188-1MG
Corynecin V 1 mg CAS number 40958-12-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Corynecin V 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C188-5MG
Corynecin V 5 mg CAS number 40958-12-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Creatinine 25 mg
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Manufacturer: TOKU-E Item Number: C271-25MG
Creatinine 25 mg CAS number 60-27-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£153.17 £170.19
Creatinine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C271-5MG
Creatinine 5 mg CAS number 60-27-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£43.83 £48.70
Cryptopleurine 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C272-1MG
Cryptopleurine 1 mg CAS number 482-22-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£205.68 £228.53
Cryptopleurine 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C272-5MG
Cryptopleurine 5 mg CAS number 482-22-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£719.63 £799.59
Cryptotanshinone 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C207-10MG
Cryptotanshinone 10 mg CAS number 35825-57-1 and purity ≥ 98%...
Price excludes taxes and shipping charges. Save -10%
£138.24 £153.60
Cryptotanshinone 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C207-25MG
Cryptotanshinone 25 mg CAS number 35825-57-1 and purity ≥ 98%...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Curvularin 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C189-1MG
Curvularin 1 mg CAS number 10140-70-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£227.35 £252.61
Curvularin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C189-5MG
Curvularin 5 mg CAS number 10140-70-2 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£795.26 £883.62
cyclo(Delta-Ala-L-Val) 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C220-1MG
cyclo(Delta-Ala-L-Val) 1 mg CAS number 25516-00-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£226.39 £251.54
cyclo(Delta-Ala-L-Val) 5 mg
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Manufacturer: TOKU-E Item Number: C220-5MG
cyclo(Delta-Ala-L-Val) 5 mg CAS number 25516-00-1 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£788.99 £876.66
cyclo(L-Phe-L-Pro) 25 mg
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Manufacturer: TOKU-E Item Number: C221-25MG
cyclo(L-Phe-L-Pro) 25 mg CAS number 3705-26-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£595.36 £661.51
cyclo(L-Phe-L-Pro) 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C221-5MG
cyclo(L-Phe-L-Pro) 5 mg CAS number 3705-26-8 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£171.00 £190.00
cyclo(L-Pro-L-Tyr) 25 mg
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Manufacturer: TOKU-E Item Number: C222-25MG
cyclo(L-Pro-L-Tyr) 25 mg CAS number 4611-05-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£595.36 £661.51
cyclo(L-Pro-L-Tyr) 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C222-5MG
cyclo(L-Pro-L-Tyr) 5 mg CAS number 4611-05-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£171.00 £190.00
cyclo(L-Pro-L-Val) 25 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C223-25MG
cyclo(L-Pro-L-Val) 25 mg CAS number 2854-40-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£595.36 £661.51
cyclo(L-Pro-L-Val) 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C223-5MG
cyclo(L-Pro-L-Val) 5 mg CAS number 2854-40-2 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£171.00 £190.00
Cycloechinulin 1 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C190-1MG
Cycloechinulin 1 mg CAS number 143086-29-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.49 £233.88
Cycloechinulin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C190-5MG
Cycloechinulin 5 mg CAS number 143086-29-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£734.56 £816.18
Cycloheximide  1 g
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Manufacturer: TOKU-E Item Number: C001-1G
Cycloheximide 1 g CAS number 66-81-9 and purity ≥ 900 units/mg...
Price excludes taxes and shipping charges. Save -10%
£25.05 £27.83
Cycloheximide  10 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: C001-10G
Cycloheximide 10 g CAS number 66-81-9 and purity ≥ 900 units/mg...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
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