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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.

Demethoxyviridiol 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D042-5MG
Demethoxyviridiol 5 mg CAS number 56617-66-4 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£807.78 £897.53
Demethylbleomycin A2 sulfate EvoPure® 2 mg
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Manufacturer: TOKU-E Item Number: D023-2MG
Demethylbleomycin A2 sulfate EvoPure® 2 mg CAS number nan and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -100%
£0.00 Price available post quote
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Demethylbleomycin A2 sulfate EvoPure® Please Contact Us for Pricing
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Manufacturer: TOKU-E Item Number: D023
Demethylbleomycin A2 sulfate EvoPure® Please Contact Us for Pricing CAS number nan and purity >95% by HPLC...
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£0.00 Price available post quote
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Deoxybrevianamide E 1 mg
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Manufacturer: TOKU-E Item Number: D083-1MG
Deoxybrevianamide E 1 mg CAS number 34610-68-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£231.21 £256.90
Deoxybrevianamide E 5 mg
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Manufacturer: TOKU-E Item Number: D083-5MG
Deoxybrevianamide E 5 mg CAS number 34610-68-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£807.78 £897.53
Deoxyenterocin 1 mg
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Manufacturer: TOKU-E Item Number: D043-1MG
Deoxyenterocin 1 mg CAS number 108605-51-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Deoxyenterocin 5 mg
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Manufacturer: TOKU-E Item Number: D043-5MG
Deoxyenterocin 5 mg CAS number 108605-51-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Deoxyfusapyrone 1 mg
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Manufacturer: TOKU-E Item Number: D044-1MG
Deoxyfusapyrone 1 mg CAS number 156856-32-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Deoxyfusapyrone 5 mg
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Manufacturer: TOKU-E Item Number: D044-5MG
Deoxyfusapyrone 5 mg CAS number 156856-32-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Deoxygerfelin 1 mg
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Manufacturer: TOKU-E Item Number: D099-1MG
Deoxygerfelin 1 mg CAS number 36149-01-6 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Deoxygerfelin 5 mg
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Manufacturer: TOKU-E Item Number: D099-5MG
Deoxygerfelin 5 mg CAS number 36149-01-6 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Deoxyviolacein 0.5 mg
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Manufacturer: TOKU-E Item Number: D045-0.5MG
Deoxyviolacein 0.5 mg CAS number 5839-61-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£288.05 £320.05
Deoxyviolacein 2.5 mg
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Manufacturer: TOKU-E Item Number: D045-2.5MG
Deoxyviolacein 2.5 mg CAS number 5839-61-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,005.26 £1,116.96
Dermcidin 5mg
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Manufacturer: TOKU-E Item Number: D077-5MG
Dermcidin 5mg CAS number nan and purity ≥ 98.0% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£415.21 £461.34
Derquantel 25 mg
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Manufacturer: TOKU-E Item Number: D046-25MG
Derquantel 25 mg CAS number 187865-22-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Derquantel 5 mg
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Manufacturer: TOKU-E Item Number: D046-5MG
Derquantel 5 mg CAS number 187865-22-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Descarbamylnovobiocin 1 mg
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Manufacturer: TOKU-E Item Number: D100-1MG
Descarbamylnovobiocin 1 mg CAS number 75057-97-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£175.82 £195.35
Descarbamylnovobiocin 5 mg
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Manufacturer: TOKU-E Item Number: D100-5MG
Descarbamylnovobiocin 5 mg CAS number 75057-97-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£614.63 £682.92
Desertomycin A 1 mg
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Manufacturer: TOKU-E Item Number: D047-1MG
Desertomycin A 1 mg CAS number 121820-50-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£256.26 £284.73
Desertomycin A 5 mg
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Manufacturer: TOKU-E Item Number: D047-5MG
Desertomycin A 5 mg CAS number 121820-50-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£894.48 £993.87
Desotamide 0.5 mg
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Manufacturer: TOKU-E Item Number: D049-0.5MG
Desotamide 0.5 mg CAS number 194660-14-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£238.43 £264.92
Desotamide 2.5 mg
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Manufacturer: TOKU-E Item Number: D049-2.5MG
Desotamide 2.5 mg CAS number 194660-14-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£832.82 £925.36
Diacetylcercosporin 1 mg
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Manufacturer: TOKU-E Item Number: D050-1MG
Diacetylcercosporin 1 mg CAS number nan and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£203.75 £226.39
Diacetylcercosporin 5 mg
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Manufacturer: TOKU-E Item Number: D050-5MG
Diacetylcercosporin 5 mg CAS number nan and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£709.52 £788.35
Diacetylphloroglucinol 25 mg
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Manufacturer: TOKU-E Item Number: D051-25MG
Diacetylphloroglucinol 25 mg CAS number 2161-86-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£308.75 £343.06
Diacetylphloroglucinol 5 mg
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Manufacturer: TOKU-E Item Number: D051-5MG
Diacetylphloroglucinol 5 mg CAS number 2161-86-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£88.63 £98.48
Dicamba 1 g
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Manufacturer: TOKU-E Item Number: D070-1G
Dicamba 1 g CAS number 1918-00-9  and purity ≥ 96.0%...
Price excludes taxes and shipping charges. Save -10%
£232.65 £258.50
Dichlorophen 25 g
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Manufacturer: TOKU-E Item Number: D073-25G
Dichlorophen 25 g CAS number 97-23-4 and purity nan...
Price excludes taxes and shipping charges. Save -10%
£36.13 £40.14
Dicloxacillin Sodium 1G
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Manufacturer: TOKU-E Item Number: D016-1G
Dicloxacillin Sodium 1G CAS number 13412-64-1 and purity ≥ 850 µg/mg (HPLC; % w/w on anhydrous basis)...
Price excludes taxes and shipping charges. Save -10%
£60.70 £67.44
Dicloxacillin Sodium 5G
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D016-5G
Dicloxacillin Sodium 5G CAS number 13412-64-1 and purity ≥ 850 µg/mg (HPLC; % w/w on anhydrous basis)...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Diethylcarbamazine citrate salt 1 g
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Manufacturer: TOKU-E Item Number: D079-1G
Diethylcarbamazine citrate salt 1 g CAS number 1642-54-2 and purity ≥ 98.0%...
Price excludes taxes and shipping charges. Save -10%
£26.01 £28.90
Diethylcarbamazine citrate salt 5 x 1 g
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Manufacturer: TOKU-E Item Number: D079-5x1G
Diethylcarbamazine citrate salt 5 x 1 g CAS number 1642-54-2 and purity ≥ 98.0%...
Price excludes taxes and shipping charges. Save -10%
£115.12 £127.91
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Difloxacin hydrochloride 1 g
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Manufacturer: TOKU-E Item Number: D021-1G
Difloxacin hydrochloride 1 g CAS number 91296-86-5 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£106.45 £118.28
Difloxacin hydrochloride 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D021-5G
Difloxacin hydrochloride 5 g CAS number 91296-86-5 and purity (On Dried Basis): ≥98.0%...
Price excludes taxes and shipping charges. Save -10%
£436.89 £485.43
Dihydroaeruginoic acid 25 mg
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Manufacturer: TOKU-E Item Number: D052-25MG
Dihydroaeruginoic acid 25 mg CAS number 143209-04-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£598.73 £665.25
Dihydroaeruginoic acid 5 mg
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Manufacturer: TOKU-E Item Number: D052-5MG
Dihydroaeruginoic acid 5 mg CAS number 143209-04-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£171.96 £191.07
Dihydroartemisinin 100 mg
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Manufacturer: TOKU-E Item Number: D112-100MG
Dihydroartemisinin 100 mg CAS number 71939-50-9 and purity nan...
Price excludes taxes and shipping charges. Save -10%
£54.91 £61.01
Dihydrocyclosporin A 1 mg
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Manufacturer: TOKU-E Item Number: D053-1MG
Dihydrocyclosporin A 1 mg CAS number 59865-15-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£119.46 £132.73
Dihydrocyclosporin A 5 mg
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Manufacturer: TOKU-E Item Number: D053-5MG
Dihydrocyclosporin A 5 mg CAS number 59865-15-5 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£417.13 £463.48
Dihydroeuphol 1 mg
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Manufacturer: TOKU-E Item Number: D096-1MG
Dihydroeuphol 1 mg CAS number 564-60-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£146.92 £163.24
Dihydroeuphol 5mg
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Manufacturer: TOKU-E Item Number: D096-5MG
Dihydroeuphol 5mg CAS number 564-60-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£512.03 £568.92
Dihydronovobiocin 1 mg
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Manufacturer: TOKU-E Item Number: D101-MG
Dihydronovobiocin 1 mg CAS number 29826-16-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£719.63 £799.59
Dihydronovobiocin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D101-5MG
Dihydronovobiocin 5 mg CAS number 29826-16-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£205.68 £228.53
Dihydropleuromutilin 25 mg
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Manufacturer: TOKU-E Item Number: D054-25MG
Dihydropleuromutilin 25 mg CAS number 42302-24-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.98 £453.31
Dihydropleuromutilin 5 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D054-5MG
Dihydropleuromutilin 5 mg CAS number 42302-24-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£117.53 £130.59
Dihydrospinosyn A aglycone 0.5 mg
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Manufacturer: TOKU-E Item Number: D055-0.5MG
Dihydrospinosyn A aglycone 0.5 mg CAS number 727695-12-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£268.30 £298.11
Dihydrospinosyn A aglycone 2.5 mg
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Manufacturer: TOKU-E Item Number: D055-2.5MG
Dihydrospinosyn A aglycone 2.5 mg CAS number 727695-12-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£936.86 £1,040.96
Dihydrostreptomycin sulfate 100 g
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Manufacturer: TOKU-E Item Number: D003-100G
Dihydrostreptomycin sulfate 100 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
Price excludes taxes and shipping charges. Save -10%
£278.89 £309.88
Dihydrostreptomycin sulfate 25 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D003-25G
Dihydrostreptomycin sulfate 25 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
Price excludes taxes and shipping charges. Save -10%
£112.23 £124.70
Dihydrostreptomycin sulfate 5 g
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D003-5G
Dihydrostreptomycin sulfate 5 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
Price excludes taxes and shipping charges. Save -10%
£40.94 £45.49
Dihydrotanshinone I 10 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: D078-10MG
Dihydrotanshinone I 10 mg CAS number 87205-99-0 and purity ≥ 98.0% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£135.35 £150.39
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