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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: D046-25MG
Derquantel 25 mg CAS number 187865-22-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£921.45 £1,023.84
Manufacturer: TOKU-E Item Number: D046-5MG
Derquantel 5 mg CAS number 187865-22-1 and purity >95% by HPLC...
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£263.96 £293.29
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%
£181.11 £201.24
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%
£633.41 £703.79
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%
£263.96 £293.29
Manufacturer: TOKU-E Item Number: D047-5MG
Desertomycin A 5 mg CAS number 121820-50-6 and purity >95% by HPLC...
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£921.45 £1,023.84
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%
£245.66 £272.95
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%
£857.87 £953.19
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%
£210.01 £233.35
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%
£731.19 £812.43
Manufacturer: TOKU-E Item Number: D051-25MG
Diacetylphloroglucinol 25 mg CAS number 2161-86-6 and purity >95% by HPLC...
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£318.39 £353.77
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%
£91.52 £101.69
Manufacturer: TOKU-E Item Number: D070-1G
Dicamba 1 g CAS number 1918-00-9  and purity ≥ 96.0%...
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£239.88 £266.53
Manufacturer: TOKU-E Item Number: D073-25G
Dichlorophen 25 g CAS number 97-23-4 and purity nan...
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£37.57 £41.75
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)...
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£62.62 £69.58
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)...
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£185.45 £206.05
Manufacturer: TOKU-E Item Number: D079-1G
Diethylcarbamazine citrate salt 1 g CAS number 1642-54-2 and purity ≥ 98.0%...
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£26.97 £29.97
Manufacturer: TOKU-E Item Number: D079-5x1G
Diethylcarbamazine citrate salt 5 x 1 g CAS number 1642-54-2 and purity ≥ 98.0%...
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£118.98 £132.19
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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%
£109.82 £122.03
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%
£450.37 £500.41
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%
£617.03 £685.59
Manufacturer: TOKU-E Item Number: D052-5MG
Dihydroaeruginoic acid 5 mg CAS number 143209-04-5 and purity >95% by HPLC...
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£177.26 £196.95
Manufacturer: TOKU-E Item Number: D112-100MG
Dihydroartemisinin 100 mg CAS number 71939-50-9 and purity nan...
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£56.84 £63.15
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%
£123.31 £137.01
Manufacturer: TOKU-E Item Number: D053-5MG
Dihydrocyclosporin A 5 mg CAS number 59865-15-5 and purity >98% by HPLC...
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£429.66 £477.40
Manufacturer: TOKU-E Item Number: D096-1MG
Dihydroeuphol 1 mg CAS number 564-60-3 and purity >99% by HPLC...
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£151.73 £168.59
Manufacturer: TOKU-E Item Number: D096-5MG
Dihydroeuphol 5mg CAS number 564-60-3 and purity >99% by HPLC...
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£527.44 £586.04
Manufacturer: TOKU-E Item Number: D101-MG
Dihydronovobiocin 1 mg CAS number 29826-16-2 and purity >99% by HPLC...
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£741.31 £823.67
Manufacturer: TOKU-E Item Number: D101-5MG
Dihydronovobiocin 5 mg CAS number 29826-16-2 and purity >99% by HPLC...
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£211.94 £235.49
Manufacturer: TOKU-E Item Number: D054-25MG
Dihydropleuromutilin 25 mg CAS number 42302-24-9 and purity >95% by HPLC...
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£420.51 £467.23
Manufacturer: TOKU-E Item Number: D054-5MG
Dihydropleuromutilin 5 mg CAS number 42302-24-9 and purity >95% by HPLC...
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£121.38 £134.87
Manufacturer: TOKU-E Item Number: D055-0.5MG
Dihydrospinosyn A aglycone 0.5 mg CAS number 727695-12-7 and purity >95% by HPLC...
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£276.48 £307.20
Manufacturer: TOKU-E Item Number: D055-2.5MG
Dihydrospinosyn A aglycone 2.5 mg CAS number 727695-12-7 and purity >95% by HPLC...
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£965.29 £1,072.54
Manufacturer: TOKU-E Item Number: D003-100G
Dihydrostreptomycin sulfate 100 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
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£287.56 £319.51
Manufacturer: TOKU-E Item Number: D003-25G
Dihydrostreptomycin sulfate 25 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
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£115.60 £128.45
Manufacturer: TOKU-E Item Number: D003-5G
Dihydrostreptomycin sulfate 5 g CAS number 5490-27-7 and purity (On Dried Basis): ≥730 u/mg...
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£42.39 £47.10
Manufacturer: TOKU-E Item Number: D078-10MG
Dihydrotanshinone I 10 mg CAS number 87205-99-0 and purity ≥ 98.0% (HPLC)...
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£139.69 £155.21
Manufacturer: TOKU-E Item Number: D078-50MG
Dihydrotanshinone I 50 mg CAS number 87205-99-0 and purity ≥ 98.0% (HPLC)...
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£487.94 £542.16
Manufacturer: TOKU-E Item Number: D071-25MG
Dihydrozeatin (DHZ) 25 mg CAS number 23599-75-9 and purity ≥ 90.0%...
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£125.24 £139.15
Manufacturer: TOKU-E Item Number: D071-50MG
Dihydrozeatin (DHZ) 50 mg CAS number 23599-75-9 and purity ≥ 90.0%...
Price excludes taxes and shipping charges. Save -10%
£209.05 £232.28
Manufacturer: TOKU-E Item Number: D009-100G
Dimetridazole 100 g CAS number 551-92-8 and purity (On Dried Basis): 98.0-101.0%...
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£458.08 £508.98
Manufacturer: TOKU-E Item Number: D009-25G
Dimetridazole 25 g CAS number 551-92-8 and purity (On Dried Basis): 98.0-101.0%...
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£120.42 £133.80
Manufacturer: TOKU-E Item Number: D057-1MG
Dinactin 1 mg CAS number 20261-85-2 and purity >95% by HPLC...
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£306.83 £340.92
Manufacturer: TOKU-E Item Number: D057-5MG
Dinactin 5 mg CAS number 20261-85-2 and purity >95% by HPLC...
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£1,073.18 £1,192.43
Manufacturer: TOKU-E Item Number: D084-25MG
Dipicolinic acid 25 mg CAS number 499-83-2 and purity >95% by HPLC...
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£201.82 £224.25
Manufacturer: TOKU-E Item Number: D084-5MG
Dipicolinic acid 5 mg CAS number 499-83-2 and purity >95% by HPLC...
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£57.80 £64.22
Manufacturer: TOKU-E Item Number: D033-1G
Dirithromycin 1 g CAS number 62013-04-1 and purity >98% by HPLC...
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£144.50 £160.56
Manufacturer: TOKU-E Item Number: D107-25MG
DL-2,6-Diaminopimelic acid 25 mg CAS number 2577-62-0 and purity >99% by HPLC...
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£163.77 £181.97
Manufacturer: TOKU-E Item Number: D107-5MG
DL-2,6-Diaminopimelic acid 5 mg CAS number 2577-62-0 and purity >99% by HPLC...
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£47.20 £52.45
Manufacturer: TOKU-E Item Number: P034-1G
DL-Phosphinothricin 1 g CAS number 77182-82-2 and purity ≥ 95.0%...
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£217.24 £241.38
Manufacturer: TOKU-E Item Number: P034-250MG
DL-Phosphinothricin 250 mg CAS number 77182-82-2 and purity ≥ 95.0%...
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£63.58 £70.65
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