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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: D085-25MG
Dodecanoyl-L-homoserine lactone 25 mg CAS number 137173-46-7 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£210.98 £234.42
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Manufacturer: TOKU-E Item Number: D085-5MG
Dodecanoyl-L-homoserine lactone 5 mg CAS number 137173-46-7 and purity >99% by HPLC...
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£60.69 £67.44
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Manufacturer: TOKU-E Item Number: D058-1G
Doramectin 1 g CAS number 117704-25-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£302.01 £335.57
Manufacturer: TOKU-E Item Number: D058-100MG
Doramectin 100 mg CAS number 117704-25-3 and purity >99% by HPLC...
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£61.66 £68.51
Manufacturer: TOKU-E Item Number: D059-1MG
Doramectin aglycone 1 mg CAS number nan and purity >95% by HPLC...
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£263.96 £293.29
Manufacturer: TOKU-E Item Number: D059-5MG
Doramectin aglycone 5 mg CAS number nan and purity >95% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: D060-1MG
Doramectin monosaccharide 1 mg CAS number 165108-44-1 and purity >95% by HPLC...
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£263.96 £293.29
Manufacturer: TOKU-E Item Number: D060-5MG
Doramectin monosaccharide 5 mg CAS number 165108-44-1 and purity >95% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: D004-1G
Doripenem hydrate 1 g CAS number 364622-82-2 (hydrate); 148016-81-3 (Dried) and purity ≥ 98.0%...
Price excludes taxes and shipping charges. Save -10%
£316.46 £351.63
Manufacturer: TOKU-E Item Number: D004-250MG
Doripenem hydrate 250 mg CAS number 364622-82-2 (hydrate); 148016-81-3 (Dried) and purity ≥ 98.0%...
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£77.07 £85.63
Manufacturer: TOKU-E Item Number: D063-1MG
Doxorubicin 1 mg CAS number 23214-92-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£100.67 £111.86
Manufacturer: TOKU-E Item Number: D063-5MG
Doxorubicin 5 mg CAS number 23214-92-8 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£351.14 £390.16
Manufacturer: TOKU-E Item Number: D005-10MG
Doxorubicin hydrochloride USP 10 mg CAS number 25316-40-9 and purity 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£182.56 £202.84
Manufacturer: TOKU-E Item Number: D005-25MG
Doxorubicin hydrochloride USP 25 mg CAS number 25316-40-9 and purity 98.0% - 102.0%...
Price excludes taxes and shipping charges. Save -10%
£363.19 £403.54
Manufacturer: TOKU-E Item Number: D006-1G
Doxycycline hyclate 1 g CAS number 24390-14-5 and purity 800 - 920 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£49.13 £54.59
Manufacturer: TOKU-E Item Number: D006-5G
Doxycycline hyclate 5 g CAS number 24390-14-5 and purity 801 - 920 pg/mg...
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£126.20 £140.22
Manufacturer: TOKU-E Item Number: D109-10x1ML
Doxycycline Hyclate ReadyMade™ Solution 10 x 1 mL CAS number 24390-14-5 and purity nan...
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£123.31 £137.01
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Manufacturer: TOKU-E Item Number: D064-25G
Doxycycline hydrate 25 g CAS number 17086-28-1 and purity 803 - 920 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£157.03 £174.48
Manufacturer: TOKU-E Item Number: D064-5G
Doxycycline hydrate 5 g CAS number 17086-28-1 and purity 802 - 920 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£40.46 £44.96
Manufacturer: TOKU-E Item Number: D065-25MG
Doxycycline Hydrochloride 25mg CAS number 10592-13-9 and purity >96% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£305.87 £339.85
Manufacturer: TOKU-E Item Number: D065-5MG
Doxycycline Hydrochloride 5mg CAS number 10592-13-9 and purity >96% by HPLC...
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£99.23 £110.25
Manufacturer: TOKU-E Item Number: D097-1MG
Drimendiol 1 mg CAS number 34437-62-2 and purity >99% by HPLC...
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£201.82 £224.25
Manufacturer: TOKU-E Item Number: D097-5MG
Drimendiol 5 mg CAS number 34437-62-2 and purity >99% by HPLC...
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£702.77 £780.86
Manufacturer: TOKU-E Item Number: D098-1MG
Drimenol 1 mg CAS number 468-68-8 and purity >99% by HPLC...
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£181.11 £201.24
Manufacturer: TOKU-E Item Number: D098-5MG
Drimenol 5 mg CAS number 468-68-8 and purity >99% by HPLC...
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£633.41 £703.79
Manufacturer: TOKU-E Item Number: D066-1MG
Drimentine A 1 mg CAS number 204398-90-3 and purity >98% by HPLC...
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£263.96 £293.29
Manufacturer: TOKU-E Item Number: D066-5MG
Drimentine A 5 mg CAS number 204398-90-3 and purity >98% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: D067-1MG
Drimentine B 1 mg CAS number 204398-91-4 and purity >98% by HPLC...
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£263.96 £293.29
Manufacturer: TOKU-E Item Number: D067-5MG
Drimentine B 5 mg CAS number 204398-91-4 and purity >98% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: D068-1MG
Drimentine C 1 mg CAS number 204398-92-5 and purity >98% by HPLC...
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£263.96 £293.29
Manufacturer: TOKU-E Item Number: D068-5MG
Drimentine C 5 mg CAS number 204398-92-5 and purity >98% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: E031-1MG
Echinocandin B 1 mg CAS number 54651-05-7 and purity >95% by HPLC...
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£265.41 £294.90
Manufacturer: TOKU-E Item Number: E031-5MG
Echinocandin B 5 mg CAS number 54651-05-7 and purity >95% by HPLC...
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£925.31 £1,028.12
Manufacturer: TOKU-E Item Number: E081-10MG
Echinocandin B Nucleus Hydrochloride 10 mg CAS number 1029890-89-8 and purity ≥95-102% (anydrous basis)...
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£447.48 £497.20
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Manufacturer: TOKU-E Item Number: E088-0.5MG
Echinosporin 0.5 mg CAS number 79127-35-8 and purity ≥95% (HPLC)...
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£181.11 £201.24
Manufacturer: TOKU-E Item Number: E088-2.5MG
Echinosporin 2.5 mg CAS number 79127-35-8 and purity ≥95% (HPLC)...
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£633.41 £703.79
Manufacturer: TOKU-E Item Number: E001-100G
Econazole nitrate 100 g CAS number 68797-31-9 and purity (On Dried Basis): 98.5-101.0%...
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£629.07 £698.97
Manufacturer: TOKU-E Item Number: E001-25G
Econazole nitrate 25 g CAS number 68797-31-9 and purity (On Dried Basis): 98.5-101.0%...
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£239.88 £266.53
Manufacturer: TOKU-E Item Number: E001-5G
Econazole nitrate 5 g CAS number 68797-31-9 and purity (On Dried Basis): 98.5-101.0%...
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£66.95 £74.39
Manufacturer: TOKU-E Item Number: E097-100MG
Efinaconazole 100 mg CAS number 164650-44-6 and purity ≥ 99.0%...
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£302.01 £335.57
Manufacturer: TOKU-E Item Number: E032-1MG
Elaiophylin 1 mg CAS number 37318-06-2 and purity >95% by HPLC...
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£148.36 £164.84
Manufacturer: TOKU-E Item Number: E032-5MG
Elaiophylin 5 mg CAS number 37318-06-2 and purity >95% by HPLC...
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£518.77 £576.41
Manufacturer: TOKU-E Item Number: E033-1MG
Emamectin B1a 1 mg CAS number 121124-29-6 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: E033-5MG
Emamectin B1a 5 mg CAS number 121124-29-6 and purity >99% by HPLC...
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£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: E063-10MG
Embelin 10 mg CAS number 550-24-3 and purity ≥98%...
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£83.33 £92.59
Manufacturer: TOKU-E Item Number: E063-50MG
Embelin 50 mg CAS number 550-24-3 and purity ≥98%...
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£297.68 £330.75
Manufacturer: TOKU-E Item Number: E089-0.1MG
Emeguisin A 0.1 mg CAS number 117032-54-9 and purity ≥95% (HPLC)...
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£151.73 £168.59
Manufacturer: TOKU-E Item Number: E089-0.5MG
Emeguisin A 0.5 mg CAS number 117032-54-9 and purity ≥95% (HPLC)...
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£527.44 £586.04
Manufacturer: TOKU-E Item Number: E087-1MG
Emestrin 1 mg CAS number 97816-62-1 and purity ≥95% (HPLC)...
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£211.94 £235.49
Manufacturer: TOKU-E Item Number: E087-5MG
Emestrin 5 mg CAS number 97816-62-1 and purity ≥95% (HPLC)...
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£741.31 £823.67
Manufacturer: TOKU-E Item Number: E078-100MG
Emodepside 100mg CAS number 71751-41-2 (mixture); 65195-55-3 (b1a); 65195-56-4 (b1b) and purity not reported...
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£605.47 £672.75
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