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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.

Pitavastatin Calcium 25 mg
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Manufacturer: TOKU-E Item Number: P132-25MG
Pitavastatin Calcium 25 mg CAS number 147526-32-7 and purity ≥99%...
Price excludes taxes and shipping charges. Save -10%
£156.06 £173.40
Pivmecillinam Hydrochloride 10 mg
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Manufacturer: TOKU-E Item Number: P141-10MG
Pivmecillinam Hydrochloride 10 mg CAS number 32887-03-9 and purity ≥97% (HPLC, dried basis)...
Price excludes taxes and shipping charges. Save -10%
£63.59 £70.65
Pivmecillinam Hydrochloride 100 mg
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Manufacturer: TOKU-E Item Number: P141-100MG
Pivmecillinam Hydrochloride 100 mg CAS number 32887-03-9 and purity ≥97% (HPLC, dried basis)...
Price excludes taxes and shipping charges. Save -10%
£340.55 £378.39
Pivmecillinam Hydrochloride 50 mg
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Manufacturer: TOKU-E Item Number: P141-50MG
Pivmecillinam Hydrochloride 50 mg CAS number 32887-03-9 and purity ≥97% (HPLC, dried basis)...
Price excludes taxes and shipping charges. Save -10%
£203.75 £226.39
Platencin 0.1 mg
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Manufacturer: TOKU-E Item Number: P089-0.1MG
Platencin 0.1 mg CAS number 869898-86-2 and purity >99% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£328.99 £365.54
Platencin 0.5 mg
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Manufacturer: TOKU-E Item Number: P089-0.5MG
Platencin 0.5 mg CAS number 869898-86-2 and purity >99% by HPLC...
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£1,148.33 £1,275.92
Platensimycin 0.25 mg
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Manufacturer: TOKU-E Item Number: P090-0.25MG
Platensimycin 0.25 mg CAS number 835876-32-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£328.99 £365.54
Platensimycin 1 mg
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Manufacturer: TOKU-E Item Number: P090-1MG
Platensimycin 1 mg CAS number 835876-32-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£1,148.33 £1,275.92
Plazomicin sulfate 10 mg
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Manufacturer: TOKU-E Item Number: P140-10MG
Plazomicin sulfate 10 mg CAS number 1154757-24-0 and purity ≥90% (HPLC)...
Price excludes taxes and shipping charges. Save -10%
£121.38 £134.87
Plazomicin sulfate 100 mg
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Manufacturer: TOKU-E Item Number: P140-100MG
Plazomicin sulfate 100 mg CAS number 1154757-24-0 and purity ≥90% (HPLC)...
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£821.75 £913.05
Pleuromutilin 100 mg
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Manufacturer: TOKU-E Item Number: P091-100MG
Pleuromutilin 100 mg CAS number 125-65-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£949.87 £1,055.41
Pleuromutilin 25 mg
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Manufacturer: TOKU-E Item Number: P091-25MG
Pleuromutilin 25 mg CAS number 125-65-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£272.63 £302.92
Plumbagin 25 mg
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Manufacturer: TOKU-E Item Number: P159-25MG
Plumbagin 25 mg CAS number 481-42-5 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£177.26 £196.95
Plumbagin 5 mg
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Manufacturer: TOKU-E Item Number: P159-5MG
Plumbagin 5 mg CAS number 481-42-5 and purity >95% by HPLC...
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£52.02 £57.80
Plumieride 1 mg
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Manufacturer: TOKU-E Item Number: P119-1MG
Plumieride 1 mg CAS number 511-89-7 and purity nan...
Price excludes taxes and shipping charges. Save -10%
£240.35 £267.06
Pluviatolide 1 mg
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Manufacturer: TOKU-E Item Number: P144-1MG
Pluviatolide 1 mg CAS number 28115-68-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Pluviatolide 5 mg
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Manufacturer: TOKU-E Item Number: P144-5MG
Pluviatolide 5 mg CAS number 28115-68-6 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£627.63 £697.37
Pneumocandin B0 1 mg
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Manufacturer: TOKU-E Item Number: P092-1MG
Pneumocandin B0 1 mg CAS number 135575-42-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£243.25 £270.28
Pneumocandin B0 5 mg
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Manufacturer: TOKU-E Item Number: P092-5MG
Pneumocandin B0 5 mg CAS number 135575-42-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£848.72 £943.02
Podophyllotoxin 1 g
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Manufacturer: TOKU-E Item Number: P126-1G
Podophyllotoxin 1 g CAS number 518-28-5 and purity ≤98%...
Price excludes taxes and shipping charges. Save -10%
£179.67 £199.63
Podophyllotoxin 100 mg
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Manufacturer: TOKU-E Item Number: P126-100MG
Podophyllotoxin 100 mg CAS number 518-28-5 and purity ≤98%...
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£61.66 £68.51
Poly(vinylpyrrolidone)–Iodine complex 2 x 25 g
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Manufacturer: TOKU-E Item Number: P121-2x25G
Poly(vinylpyrrolidone)–Iodine complex 2 x 25 g CAS number 25655-41-8 and purity nan...
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£83.81 £93.12
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Poly(vinylpyrrolidone)–Iodine complex 4 x 25 g
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Manufacturer: TOKU-E Item Number: P121-4x25G
Poly(vinylpyrrolidone)–Iodine complex 4 x 25 g CAS number 25655-41-8 and purity nan...
Price excludes taxes and shipping charges. Save -10%
£111.27 £123.63
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Polygodial 1 mg
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Manufacturer: TOKU-E Item Number: P145-1MG
Polygodial 1 mg CAS number 6754-20-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£91.04 £101.15
Polygodial 5 mg
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Manufacturer: TOKU-E Item Number: P145-5MG
Polygodial 5 mg CAS number 6754-20-7 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£315.50 £350.56
Polygodial pyridazine 0.5 mg
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Manufacturer: TOKU-E Item Number: P146-0.5MG
Polygodial pyridazine 0.5 mg CAS number 1810726-08-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£140.17 £155.74
Polygodial pyridazine 2.5 mg
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Manufacturer: TOKU-E Item Number: P146-2,5MG
Polygodial pyridazine 2.5 mg CAS number 1810726-08-9 and purity >95% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£487.94 £542.16
Polymyxin B ReadyMadeTM Solution 10 mL
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Manufacturer: TOKU-E Item Number: P174-10ML
Polymyxin B ReadyMadeTM Solution 10 mL CAS number 1405-20-5 and purity (Dried Basis): ≥6,000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£154.13 £171.26
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Polymyxin B ReadyMadeTM Solution 100 mL
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Manufacturer: TOKU-E Item Number: P174-100ML
Polymyxin B ReadyMadeTM Solution 100 mL CAS number 1405-20-5 and purity (Dried Basis): ≥6,000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£506.25 £562.50
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Polymyxin B Sulfate 10 MU
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Manufacturer: TOKU-E Item Number: P007-10MU
Polymyxin B Sulfate 10 MU CAS number 1405-20-5 and purity (On Dried Basis): ≥6000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£125.24 £139.15
Polymyxin B Sulfate 100 MU
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Manufacturer: TOKU-E Item Number: P007-100MU
Polymyxin B Sulfate 100 MU CAS number 1405-20-5 and purity (On Dried Basis): ≥6000 u/mg...
Price excludes taxes and shipping charges. Save -10%
£481.68 £535.20
Polymyxin B1 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P037-10MG
Polymyxin B1 Sulfate EvoPure® 10 mg CAS number 4135-11-09 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£666.16 £740.18
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Polymyxin B1-I Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P038-10MG
Polymyxin B1-I Sulfate EvoPure® 10 mg CAS number 80469-10-9 and purity >90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£666.16 £740.18
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Polymyxin B2 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P039-10MG
Polymyxin B2 Sulfate EvoPure® 10 mg CAS number nan and purity >90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£666.16 £740.18
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Polymyxin B3 Sulfate EvoPure® 5 mg
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Manufacturer: TOKU-E Item Number: P040-5MG
Polymyxin B3 Sulfate EvoPure® 5 mg CAS number nan and purity >85% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£922.90 £1,025.44
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Polymyxin B6 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P054-10MG
Polymyxin B6 Sulfate EvoPure® 10 mg CAS number nan and purity >90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£979.74 £1,088.60
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Polymyxin E1 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P055-10MG
Polymyxin E1 Sulfate EvoPure® 10 mg CAS number 7722-44-3 (free base) and purity >90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£978.78 £1,087.53
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Polymyxin E2 Sulfate EvoPure® 10 mg
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Manufacturer: TOKU-E Item Number: P056-10MG
Polymyxin E2 Sulfate EvoPure® 10 mg CAS number 7239-48-7 (free base) and purity >90% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£415.21 £461.34
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Ponazuril 10 mg
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Manufacturer: TOKU-E Item Number: P138-10MG
Ponazuril 10 mg CAS number 69004-04-2 and purity (On Dried Basis): 98-102% ...
Price excludes taxes and shipping charges. Save -10%
£160.88 £178.76
Ponazuril 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P138-100MG
Ponazuril 100 mg CAS number 69004-04-2 and purity (On Dried Basis): 98-102% ...
Price excludes taxes and shipping charges. Save -10%
£656.05 £728.94
Posaconazole 10 mg
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Manufacturer: TOKU-E Item Number: P139-10MG
Posaconazole 10 mg CAS number 171228-49-2 and purity (On Dried Basis): 98-102% ...
Price excludes taxes and shipping charges. Save -10%
£121.38 £134.87
Posaconazole 100 mg
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Manufacturer: TOKU-E Item Number: P139-100MG
Posaconazole 100 mg CAS number 171228-49-2 and purity (On Dried Basis): 98-102% ...
Price excludes taxes and shipping charges. Save -10%
£508.18 £564.64
Pradofloxacin 50 mg
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Manufacturer: TOKU-E Item Number: P163-50MG
Pradofloxacin 50 mg CAS number 195532-12-8 and purity >=98%...
Price excludes taxes and shipping charges. Save -10%
£152.21 £169.12
Pravastatin sodium 100 mg
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Manufacturer: TOKU-E Item Number: P093-100MG
Pravastatin sodium 100 mg CAS number 81131-70-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£315.50 £350.56
Pravastatin sodium 25 mg
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Manufacturer: TOKU-E Item Number: P093-25MG
Pravastatin sodium 25 mg CAS number 81131-70-6 and purity >98% by HPLC...
Price excludes taxes and shipping charges. Save -10%
£91.04 £101.15
Praziquantel 25 g
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Manufacturer: TOKU-E Item Number: P011-25G
Praziquantel 25 g CAS number 55268-74-1 and purity 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£171.96 £191.07
Praziquantel 5 g
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Manufacturer: TOKU-E Item Number: P011-5G
Praziquantel 5 g CAS number 55268-74-1 and purity 98.5-101.0%...
Price excludes taxes and shipping charges. Save -10%
£38.05 £42.28
Pretomanid 10 mg
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Manufacturer: TOKU-E Item Number: P142-10MG
Pretomanid 10 mg CAS number 187235-37-6 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£110.30 £122.56
Pretomanid 100 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P142-100MG
Pretomanid 100 mg CAS number 187235-37-6 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£351.63 £390.70
Pretomanid 50 mg
Actual product may differ from image
Manufacturer: TOKU-E Item Number: P142-50MG
Pretomanid 50 mg CAS number 187235-37-6 and purity ≥98%...
Price excludes taxes and shipping charges. Save -10%
£241.33 £268.14
Pristinamycin 10 mg
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Manufacturer: TOKU-E Item Number: P018-10MG
Pristinamycin 10 mg CAS number 270076-60-3 and purity ≥95% (by HPLC)...
Price excludes taxes and shipping charges. Save -10%
£403.16 £447.96
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