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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: L016-5G
Lincomycin HCl EP 5 g CAS number 7179-49-9 (monohydrate); 859-18-7 (Dried) and purity ≥ 790 pg/mg...
Price excludes taxes and shipping charges. Save -10%
£302.01 £335.57
Manufacturer: TOKU-E Item Number: L002-1G
Lincomycin Hydrochloride USP 1 g CAS number 7179-49-9 (monohydrate); 859-18-7 (Dried) and purity ≥ 790 µg/mg...
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£69.84 £77.60
Manufacturer: TOKU-E Item Number: L002-5G
Lincomycin Hydrochloride USP 5 g CAS number 7179-49-9 (monohydrate); 859-18-7 (Dried) and purity ≥ 790 µg/mg...
Price excludes taxes and shipping charges. Save -10%
£311.64 £346.27
Manufacturer: TOKU-E Item Number: L057-0.5MG
Linearmycin A 0.5 mg CAS number 163596-98-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£189.30 £210.33
Manufacturer: TOKU-E Item Number: L057-2.5MG
Linearmycin A 2.5 mg CAS number 163596-98-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£660.38 £733.76
Manufacturer: TOKU-E Item Number: L007-10MG
Linezolid 10 mg CAS number 165800-03-3 and purity ≥ 98% (On Dried Basis)...
Price excludes taxes and shipping charges. Save -10%
£99.23 £110.25
Manufacturer: TOKU-E Item Number: L007-100MG
Linezolid 100 mg CAS number 165800-03-3 and purity ≥ 98% (On Dried Basis)...
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£181.59 £201.77
Manufacturer: TOKU-E Item Number: L062-25G
Lithium Dodecyl Sulfate, Dust-FreeTM 25 g CAS number 2044-56-6 and purity >=99.5%...
Price excludes taxes and shipping charges. Save -10%
£109.34 £121.49
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Manufacturer: TOKU-E Item Number: L062-5G
Lithium Dodecyl Sulfate, Dust-FreeTM 5 g CAS number 2044-56-6 and purity >=99.5%...
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£36.13 £40.14
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Manufacturer: TOKU-E Item Number: L062-50G
Lithium Dodecyl Sulfate, Dust-FreeTM 50 g CAS number 2044-56-6 and purity >=99.5%...
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£218.68 £242.98
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Manufacturer: TOKU-E Item Number: L038-1MG
LL Z1640-2 1 mg CAS number 253863-19-3 and purity >99% by HPLC...
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£117.05 £130.05
Manufacturer: TOKU-E Item Number: L038-5MG
LL Z1640-2 5 mg CAS number 253863-19-3 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£407.02 £452.24
Manufacturer: TOKU-E Item Number: L039-1MG
LL Z1640-4 1 mg CAS number 66018-41-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£184.97 £205.52
Manufacturer: TOKU-E Item Number: L039-5MG
LL Z1640-4 5 mg CAS number 66018-41-5 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£645.93 £717.70
Manufacturer: TOKU-E Item Number: L046-1MG
LL-37 (human) trifluoroacetate salt 1 mg CAS number 597562-32-8 and purity ≥ 98.0%...
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£184.01 £204.45
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Manufacturer: TOKU-E Item Number: L005-1G
Lomefloxacin hydrochloride 1 g CAS number 98079-52-8 and purity ≥ 98.5%...
Price excludes taxes and shipping charges. Save -10%
£58.76 £65.29
Manufacturer: TOKU-E Item Number: L005-5G
Lomefloxacin hydrochloride 5 g CAS number 98079-52-8 and purity ≥ 98.5%...
Price excludes taxes and shipping charges. Save -10%
£160.88 £178.76
Manufacturer: TOKU-E Item Number: L013-100MG
Lovastatin (Mevinolin) 100 mg CAS number 75330-75-5 and purity 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£378.12 £420.13
Manufacturer: TOKU-E Item Number: L013-25MG
Lovastatin (Mevinolin) 25 mg CAS number 75330-75-5 and purity 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£93.45 £103.83
Manufacturer: TOKU-E Item Number: L064-1G
Luliconazole 1 g CAS number 187164-19-8 and purity 98.5% ~ 102.0% (on dried basis)...
Price excludes taxes and shipping charges. Save -10%
£249.51 £277.23
Manufacturer: TOKU-E Item Number: L064-5G
Luliconazole 5 g CAS number 187164-19-8 and purity 98.5% ~ 102.0% (on dried basis)...
Price excludes taxes and shipping charges. Save -10%
£962.87 £1,069.86
Manufacturer: TOKU-E Item Number: L059-1MG
Lupanine 1 mg CAS number 550-90-3 and purity >95% by HPLC...
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£210.49 £233.88
Manufacturer: TOKU-E Item Number: L059-5MG
Lupanine 5 mg CAS number 550-90-3 and purity >95% by HPLC...
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£733.60 £815.11
Manufacturer: TOKU-E Item Number: L052-25MG
Lupeol 25 mg CAS number 545-47-1 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£211.46 £234.95
Manufacturer: TOKU-E Item Number: L052-5MG
Lupeol 5 mg CAS number 545-47-1 and purity >95% by HPLC...
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£61.17 £67.97
Manufacturer: TOKU-E Item Number: L040-0.5MG
Luteoreticulin 0.5 mg CAS number 22388-89-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£230.72 £256.36
Manufacturer: TOKU-E Item Number: L040-2.5MG
Luteoreticulin 2.5 mg CAS number 22388-89-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£805.85 £895.39
Manufacturer: TOKU-E Item Number: L041-0.5MG
Luzopeptin A 0.5 mg CAS number 75580-37-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£172.44 £191.60
Manufacturer: TOKU-E Item Number: L041-2.5MG
Luzopeptin A 2.5 mg CAS number 75580-37-9 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£597.76 £664.18
Manufacturer: TOKU-E Item Number: L042-0.5MG
Lydicamycin 0.5 mg CAS number 133352-27-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£328.99 £365.54
Manufacturer: TOKU-E Item Number: L042-2.5MG
Lydicamycin 2.5 mg CAS number 133352-27-9 and purity >95% by HPLC...
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£1,148.33 £1,275.92
Manufacturer: TOKU-E Item Number: M046-25MG
Maduramicin 25 mg CAS number 79356-08-4 and purity >98% by HPLC...
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£579.94 £644.38
Manufacturer: TOKU-E Item Number: M046-5MG
Maduramicin 5 mg CAS number 79356-08-4 and purity >98% by HPLC...
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£167.14 £185.71
Manufacturer: TOKU-E Item Number: M047-25MG
Maduramicin Ammonium 25 mg CAS number 84878-61-5 and purity >98% by HPLC...
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£396.90 £441.00
Manufacturer: TOKU-E Item Number: M047-5MG
Maduramicin Ammonium 5 mg CAS number 84878-61-5 and purity >98% by HPLC...
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£114.64 £127.38
Manufacturer: TOKU-E Item Number: M120-100MG
Maduramicin Ammonium, >90% 100 mg CAS number 84878-61-5 and purity >90% by HPLC...
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£99.23 £110.25
Manufacturer: TOKU-E Item Number: M073-1MG
Magainin I 1 mg CAS number 108433-99-4 and purity ≥98.0%...
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£152.21 £169.12
Manufacturer: TOKU-E Item Number: M074-1MG
Magainin II 1 mg CAS number 108433-95-0 and purity ≥95.0%...
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£231.21 £256.90
Manufacturer: TOKU-E Item Number: M112-0.1MG
Malolactomycin C 0.1 mg CAS number 189759-03-3 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£160.40 £178.22
Manufacturer: TOKU-E Item Number: M112-0.5MG
Malolactomycin C 0.5 mg CAS number 189759-03-3 and purity >95% by HPLC...
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£557.31 £619.23
Manufacturer: TOKU-E Item Number: M078-1G
Mancozeb 1 g CAS number 8018-01-7 and purity not reported...
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£129.09 £143.43
Manufacturer: TOKU-E Item Number: M110-1MG
Manumycin A 1 mg CAS number 52665-74-4 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Manufacturer: TOKU-E Item Number: M110-5MG
Manumycin A 5 mg CAS number 52665-74-4 and purity >99% by HPLC...
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£627.63 £697.37
Manufacturer: TOKU-E Item Number: M014-1G
Marbofloxacin 1 g CAS number 115550-35-1 and purity 99.0% - 101.0%...
Price excludes taxes and shipping charges. Save -10%
£184.01 £204.45
Manufacturer: TOKU-E Item Number: M014-100MG
Marbofloxacin 100 mg CAS number 115550-35-1 and purity 99.0% - 101.0%...
Price excludes taxes and shipping charges. Save -10%
£71.77 £79.74
Manufacturer: TOKU-E Item Number: M014-500MG
Marbofloxacin 500 mg CAS number 115550-35-1 and purity 99.0% - 101.0%...
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£96.34 £107.04
Manufacturer: TOKU-E Item Number: M048-1MG
Marcfortine A 1 mg CAS number 75731-43-0 and purity >99% by HPLC...
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£334.29 £371.43
Manufacturer: TOKU-E Item Number: M048-5MG
Marcfortine A 5 mg CAS number 75731-43-0 and purity >99% by HPLC...
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£1,167.59 £1,297.32
Manufacturer: TOKU-E Item Number: M075-100MG
Matrine 100 mg CAS number 519-02-8 and purity ≥98.0%...
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£276.00 £306.67
Manufacturer: TOKU-E Item Number: M075-500MG
Matrine 500 mg CAS number 519-02-8 and purity ≥98.0%...
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£642.08 £713.42
Manufacturer: TOKU-E Item Number: M082-100G
Mebendazole 100 g CAS number 31431-39-7 and purity (On Dried Basis) 99.0% - 101.0%...
Price excludes taxes and shipping charges. Save -10%
£197.49 £219.43
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